CN117363188B - High-adhesion durable floor paint and preparation method thereof - Google Patents
High-adhesion durable floor paint and preparation method thereof Download PDFInfo
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- CN117363188B CN117363188B CN202311381001.0A CN202311381001A CN117363188B CN 117363188 B CN117363188 B CN 117363188B CN 202311381001 A CN202311381001 A CN 202311381001A CN 117363188 B CN117363188 B CN 117363188B
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- 239000003973 paint Substances 0.000 title claims abstract description 96
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000003822 epoxy resin Substances 0.000 claims abstract description 72
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 72
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 41
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 41
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 24
- -1 acrylic ester Chemical class 0.000 claims abstract description 24
- 239000004814 polyurethane Substances 0.000 claims abstract description 22
- 229920002635 polyurethane Polymers 0.000 claims abstract description 20
- 239000000839 emulsion Substances 0.000 claims abstract description 16
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims description 20
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 18
- 239000011259 mixed solution Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000000945 filler Substances 0.000 claims description 13
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 12
- 239000012752 auxiliary agent Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 9
- 125000005442 diisocyanate group Chemical group 0.000 claims description 9
- 238000006116 polymerization reaction Methods 0.000 claims description 9
- 239000002270 dispersing agent Substances 0.000 claims description 8
- 239000000049 pigment Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 5
- 229920005862 polyol Polymers 0.000 claims description 5
- 150000003077 polyols Chemical class 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 4
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 claims description 3
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 3
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 3
- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- 239000003242 anti bacterial agent Substances 0.000 claims description 3
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 claims description 3
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 claims description 3
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 3
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- AYLRODJJLADBOB-QMMMGPOBSA-N methyl (2s)-2,6-diisocyanatohexanoate Chemical compound COC(=O)[C@@H](N=C=O)CCCCN=C=O AYLRODJJLADBOB-QMMMGPOBSA-N 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 230000003449 preventive effect Effects 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 239000002562 thickening agent Substances 0.000 claims description 3
- 239000012745 toughening agent Substances 0.000 claims description 3
- 239000000080 wetting agent Substances 0.000 claims description 3
- UHFFVFAKEGKNAQ-UHFFFAOYSA-N 2-benzyl-2-(dimethylamino)-1-(4-morpholin-4-ylphenyl)butan-1-one Chemical compound C=1C=C(N2CCOCC2)C=CC=1C(=O)C(CC)(N(C)C)CC1=CC=CC=C1 UHFFVFAKEGKNAQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000002518 antifoaming agent Substances 0.000 claims description 2
- 125000002816 methylsulfanyl group Chemical group [H]C([H])([H])S[*] 0.000 claims description 2
- 125000004573 morpholin-4-yl group Chemical group N1(CCOCC1)* 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 150000005846 sugar alcohols Polymers 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 abstract description 22
- 239000000853 adhesive Substances 0.000 abstract description 21
- 239000011159 matrix material Substances 0.000 abstract description 12
- 238000004132 cross linking Methods 0.000 abstract description 10
- 229920000642 polymer Polymers 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 2
- 230000000379 polymerizing effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 34
- 238000005299 abrasion Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- 229920000058 polyacrylate Polymers 0.000 description 7
- 238000000576 coating method Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 125000003700 epoxy group Chemical group 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- JHPBZFOKBAGZBL-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylprop-2-enoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)=C JHPBZFOKBAGZBL-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229920006222 acrylic ester polymer Polymers 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 2
- 125000001841 imino group Chemical group [H]N=* 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920005749 polyurethane resin Polymers 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- GJKGAPPUXSSCFI-UHFFFAOYSA-N 2-Hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone Chemical compound CC(C)(O)C(=O)C1=CC=C(OCCO)C=C1 GJKGAPPUXSSCFI-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 206010051246 Photodermatosis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008845 photoaging Effects 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/08—Printing inks based on natural resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a high-adhesion durable floor paint and a preparation method thereof, the floor paint uses polyurethane, acrylate emulsion and dihydro rosin modified epoxy resin as main base materials for film forming to crosslink and form a film, thereby providing good mechanical properties for the floor paint and improving wear resistance. The adhesive force of the epoxy resin and the matrix is increased by adopting the dihydro rosin modified epoxy resin and the melamine formaldehyde resin, and the adhesive force of the floor paint film is further enhanced by polymerizing the dihydro rosin modified epoxy resin and the acrylic ester and reacting with the melamine formaldehyde resin to increase the crosslinking of the polymer.
Description
Technical Field
The invention belongs to the technical field of floor paint preparation, and particularly relates to high-adhesion durable floor paint and a preparation method thereof.
Background
After the floor paint is used for a long time, the problems of foaming, undercut, cracking, falling or peeling and the like are easy to occur, and the problems are caused by the adhesion of the floor paint and a matrix, and the problems can lead the floor paint to crack more easily under the action of external force so as to be destroyed; particularly, the contact edge of the floor paint and the matrix is damaged due to the poor adhesive force and even the peeling problem, so that the floor paint is easier to fall off from the matrix.
The improvement of the floor paint in the prior art is often aimed at the wear resistance or impact resistance of the floor paint, so that the floor paint is not worn, has better mechanical properties such as toughness, stretch resistance and the like, and meets the use performance. Or only improves the construction process, improves the adhesion capability of the floor paint and the matrix, but greatly increases the construction requirement on the floor paint. Therefore, the invention provides the high-adhesion durable floor paint aiming at the defects.
Disclosure of Invention
In order to overcome the defects of the prior art, the first aim of the invention is to provide the high-adhesion durable floor paint, which has better adhesive property with a silicate substrate and strong adhesive force; the light resistance is good, and the floor paint has excellent durability.
The second purpose of the invention is to provide a preparation method of the high-adhesion durable floor paint.
The first object of the invention can be achieved by adopting the following technical scheme:
The wear-resistant floor paint is characterized by comprising the following raw materials in parts by weight:
the high-adhesion durable floor paint comprises the following raw materials in parts by weight:
component A: 45-65 parts of polyurethane, 5-10 parts of acrylate emulsion, 2-5 parts of melamine formaldehyde resin, 1-5 parts of dispersing agent, 0.5-5 parts of pigment, 10-25 parts of water and 3-15 parts of auxiliary agent;
Component B: 35-65 parts of dihydro rosin modified epoxy resin, 5-18 parts of filler, 10-20 parts of water and 0.5-1.5 parts of photoinitiator.
Further, the dihydro rosin modified epoxy resin is obtained by mixing, reacting and grafting dihydro rosin and epoxy resin, wherein the epoxy resin is bisphenol A type epoxy resin.
Further, the bisphenol A type epoxy resin has an EEW of 180-250g/mol and a viscosity of 5-15Pa.s at 25 ℃.
Further, the mass ratio of the dihydro rosin to the epoxy resin is (1-2): (12-13).
Further, the polyurethane is obtained by polymerization reaction of diisocyanate and polyol, wherein the diisocyanate is one or a composition of more than two of toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate and lysine diisocyanate;
the polyol is small molecular dihydric alcohol, preferably one or more than two of ethylene glycol, propylene glycol, diethylene glycol or butanediol.
Further, the acrylic ester emulsion is one or a combination of more than two of acrylic ester, methyl acrylic ester, 2-ethyl acrylic ester and 3-methoxy acrylic ester.
Further, the photoinitiator is one or more than two of 2-hydroxy-2-methyl-1-phenyl acetone, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-2- (4-morpholinyl) -1- [4- (methylthio) phenyl ] -1-acetone, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide, 2-dimethylamino-2-benzyl-1- [4- (4-morpholinyl) phenyl ] -1-butanone and 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone.
Further, the auxiliary agent is one or a combination of more than two of flatting agent, toughening agent, thickening agent, defoamer, wetting agent, antibacterial agent and mildew preventive.
Further, the filler is one or a combination of more than two of heavy calcium carbonate powder, kaolin, talcum powder, mica powder, silicon micropowder and quartz powder; the filler is sieved by a 400-600 mesh sieve.
The second object of the invention can be achieved by adopting the following technical scheme:
A preparation method of high-adhesion durable floor paint comprises the following steps:
Preparing a component A mixed solution: mixing polyurethane, acrylic ester emulsion, melamine formaldehyde resin and water in the component A according to parts by weight, stirring and uniformly mixing, adding a dispersing agent, pigment and an auxiliary agent, and continuously stirring until uniform;
Preparing a component B mixed solution: adding the dihydro rosin modified epoxy resin, the filler and the photoinitiator in the component B into water according to weight parts, and uniformly stirring;
Mixing: and mixing the component A mixed solution and the component B mixed solution, and uniformly stirring to obtain the high-adhesion durable floor paint.
Compared with the prior art, the invention has the beneficial effects that:
1. The high-adhesion durable floor paint disclosed by the invention takes polyurethane, acrylate emulsion, melamine formaldehyde resin and dihydro rosin modified epoxy resin as main components; the polyurethane, the acrylic ester emulsion and the dihydro rosin modified epoxy resin are used as main base materials for film formation, the dihydro rosin modified epoxy resin is adopted, dihydro rosin molecules are connected to the epoxy resin, a tricyclic structure of the dihydro rosin molecules can be attached to the surface of a matrix in a planar mode, the adhesive force between the epoxy resin and the matrix is increased, one unsaturated bond of the dihydro rosin can be polymerized with the acrylic ester emulsion under the action of a photoinitiator, one end of the formed polyacrylate is connected with the dihydro rosin, and the other end of the polyacrylate is embedded into the epoxy resin to be crosslinked with the epoxy resin, so that the adhesive force of a paint film is increased. The nitrogen-containing ring and the imino contained in the melamine formaldehyde resin can be adsorbed on the surface of cement particles when the floor paint is coated, and the hydroxymethyl contained in the melamine formaldehyde resin reacts with the epoxy group of the epoxy resin to form a crosslinked structure, so that the epoxy resin is further cured and coated on the surface of sand and stone, and the adhesive force of a paint film and a matrix is enhanced. In addition, polyurethane, acrylic ester and epoxy resin are crosslinked to form a film, so that good mechanical properties are provided for the floor paint, and the wear resistance is improved.
2. The preparation method of the high-adhesion durable floor paint comprises the steps of dividing the raw materials into the component A and the component B, respectively and uniformly mixing the component A and the component B, and then mixing to prepare the high-adhesion durable floor paint, so that the raw materials can be uniformly mixed in water, a hydrogen bond or a crosslinking structure is formed during use, and the adhesion of the floor paint is enhanced.
Detailed Description
The technical scheme of the present invention will be clearly and completely described in the following in connection with specific embodiments. It will be apparent that the described embodiments are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Adhesion is one of the fundamental properties of the paint and coating industry to ensure long-term adhesion of paint films (or coatings) to surfaces, especially under aggressive conditions. Therefore, the size of the adhesive force of the floor paint after coating influences the period and quality of the floor paint. Therefore, the invention provides the high-adhesion durable floor paint which has stronger adhesion with the matrix, thereby prolonging the service life of the floor paint.
The high-adhesion durable floor paint comprises the following raw materials in parts by weight:
component A: 45-65 parts of polyurethane, 5-10 parts of acrylate emulsion, 2-5 parts of melamine formaldehyde resin, 1-5 parts of dispersing agent, 0.5-5 parts of pigment, 10-25 parts of water and 3-15 parts of auxiliary agent;
Component B: 35-65 parts of dihydro rosin modified epoxy resin, 5-18 parts of filler, 10-20 parts of water and 0.5-1.5 parts of photoinitiator.
The epoxy resin modified by polyurethane, acrylic ester emulsion, melamine formaldehyde resin and dihydro rosin is used as main components; the polymer can be crosslinked into a net shape, and the polymer blend is formed through interpenetration and entanglement, so that the floor paint has excellent mechanical property and physical and chemical properties and can withstand the long-time action of friction force.
And the epoxy resin is modified by using the dihydro rosin, the dihydro rosin molecules are connected to the epoxy resin, and the tricyclic structure in the dihydro rosin molecules can be attached to the surface of the matrix in a planar form, so that the adhesive force between the epoxy resin and the matrix is increased. And the adhesive force of a paint film is increased by adopting the dihydro rosin, wherein one unsaturated bond of the dihydro rosin can be polymerized with the acrylic ester emulsion under the action of a photoinitiator, one end of the formed polyacrylate is connected with the dihydro rosin, and the other end of the polyacrylate is embedded into epoxy resin, polyurethane and melamine formaldehyde resin to be crosslinked with the epoxy resin, polyurethane and melamine formaldehyde resin.
Unlike the polymerization reaction which cannot occur due to the fact that the unsaturated bond does not exist with the perhydrogenated rosin, the polymerization reaction which is difficult to occur due to the fact that the unsaturated bond is formed by dehydrogenated rosin, and one unsaturated double bond contained in the dihydrorosin can be polymerized with an acrylic compound under an initiator to realize polymerization. On the other hand, the reduced unsaturated bond and the photoinitiator can lead to the occurrence of polymerization reaction, so that the paint film can not be aged at high speed under illumination, but can maintain the polymerization degree of the paint film components and maintain the crosslinking degree, and the photo-aging resistance of the paint film is improved.
The melamine formaldehyde resin contains a large amount of nitrogen atoms, and nitrogen-containing rings and imino groups of the melamine formaldehyde resin can be adsorbed on the surfaces of cement particles when the floor paint is coated on a substrate; the hydroxymethyl reacts with epoxy groups of the epoxy resin to form a crosslinked structure, and the epoxy resin is further cured and coated on the surface of the sand stone, so that the crosslinking effect is improved, the adhesive force between a paint film and a matrix is enhanced, and the peeling resistance and the heat resistance are improved. In addition, polyurethane, acrylic ester polymer, epoxy resin and melamine formaldehyde resin are crosslinked to form a film, so that good mechanical properties are provided for floor paint, and the wear resistance is improved.
As a further embodiment, the dihydro-rosin modified epoxy resin is obtained by mixing, reacting and grafting dihydro-rosin and epoxy resin, wherein the epoxy resin is bisphenol A type epoxy resin.
As a further embodiment, the bisphenol A type epoxy resin has an EEW of 180-250g/mol and a viscosity of 5-15Pa.s at 25 ℃. Preferably, the bisphenol A type epoxy resin is E-44 type. Bisphenol A type epoxy resin is common epoxy resin, the E-44 type epoxy resin has an epoxy value of 0.41-0.47, a softening point of 12-20 ℃, and the epoxy resin reacts with the dihydro rosin to introduce the dihydro rosin into an epoxy resin chain.
As a further embodiment, the mass ratio of the dihydrorosin to the epoxy resin is (1-2): (12-20). The addition of the dihydro rosin can ensure that the epoxy resin is fixed, and simultaneously, most of active epoxy groups are reserved, so that the epoxy groups further react, and the polyurethane, the acrylic ester polymer, the epoxy resin and the melamine formaldehyde resin are crosslinked.
As a further embodiment, the polyurethane is obtained by polymerizing a diisocyanate with a polyol, wherein the diisocyanate is one or a combination of two or more of toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate, and lysine diisocyanate;
the polyol is small molecular dihydric alcohol, preferably one or more than two of ethylene glycol, diethylene glycol, propylene glycol or butanediol.
The diisocyanate is selected from nonionic diisocyanate, and is easy to react with micromolecular dihydric alcohol, so that the obtained polyurethane has better wear resistance. The diisocyanate is reacted in addition in a slight excess, so that the end of the polymer contains a large amount of-NCO groups, and the polymer can react with epoxy groups of epoxy resin, hydroxyl groups of melamine formaldehyde resin or other hydroxyl group-containing groups to crosslink and modify.
As a further embodiment, the acrylic ester emulsion is one or a combination of more than two of acrylic ester, methacrylic ester, 2-ethyl acrylic ester and 3-methoxy acrylic ester.
As a further embodiment, the photoinitiator is one or a combination of more than two of 2-hydroxy-2-methyl-1-phenylpropionic acid, 1-hydroxycyclohexylphenyl ketone, 2-methyl-2- (4-morpholino) -1- [4- (methylthio) phenyl ] -1-propanone, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide, 2-dimethylamino-2-benzyl-1- [4- (4-morpholino) phenyl ] -1-butanone, 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-propanone.
As a further embodiment, the auxiliary agent is one or a combination of more than two of flatting agent, toughening agent, thickening agent, defoaming agent, wetting agent, antibacterial agent and mildew preventive.
As a further embodiment, the filler is one or a combination of two or more of heavy calcium carbonate powder, kaolin, talcum powder, mica powder, silicon powder and quartz powder; the filler is sieved by a 400-600 mesh sieve.
The preparation method of the high-adhesion durable floor paint comprises the following steps:
Preparing a component A mixed solution: mixing polyurethane, acrylic ester emulsion, melamine formaldehyde resin and water in the component A according to parts by weight, stirring and uniformly mixing, adding a dispersing agent, pigment and an auxiliary agent, and continuously stirring until uniform;
Preparing a component B mixed solution: adding the dihydro rosin modified epoxy resin, the filler and the photoinitiator in the component B into water according to weight parts, and uniformly stirring;
Mixing: and mixing the component A mixed solution and the component B mixed solution, and uniformly stirring to obtain the high-adhesion durable floor paint.
As one embodiment, in the preparation process of the component A mixed solution, the components are stirred and dispersed for 30-60min at the rotating speed of 700-900 r/min; dispersing agent, pigment and auxiliary agent are added, and then the dispersion is continued for 30-60min under the rotating speed of 1000-1200 r/min.
As one embodiment, the component B mixed solution is dispersed for 30-60min under the rotating speed of 700-900r/min in the preparation process.
As one embodiment, the stirring is carried out uniformly under the rotating speed of 1000-1200r/min in the mixing process.
The raw materials are divided into a component A and a component B, wherein the component A and the component B respectively form stable mixed liquid, the component A and the component B are respectively and uniformly mixed, and then the mixed liquid is mixed to prepare the high-adhesion durable floor paint, and when the floor paint is used, the acrylate component and the dihydro rosin can be subjected to polymerization reaction under a photoinitiator to further form crosslinking and fixing, so that the adhesion of the floor paint is enhanced, and the wear resistance is improved. Specific examples are described below.
Example 1
Diethylene glycol is added into a reactor, 1.05 equivalent toluene diisocyanate is added, the reaction is controlled to be carried out at 65 ℃ and 70 ℃ respectively and in a staged mode for a period of time, the system temperature is regulated to the next temperature stage after being stabilized, and finally polyurethane is obtained after the reaction is carried out at 80 ℃ for 2 hours.
Example 2
15Kg of E-44 bisphenol A epoxy resin is taken, then, the dihydro rosin is added into the epoxy resin, 0.5kg is added each time, the total addition is carried out three times, the reaction is stirred for 1h after each addition, and the dihydro rosin modified epoxy resin is obtained after the reaction is finished.
Example 3
Preparing a component A mixed solution: 55 parts by weight of polyurethane prepared in the embodiment 1 in the component A, 5 parts by weight of acrylic ester, 2 parts by weight of methacrylic ester, 4 parts by weight of melamine formaldehyde resin and 20 parts by weight of water are added into a dispersing kettle, dispersed for 60 minutes in the reaction kettle at the rotating speed of 700r/min, stirred and mixed uniformly, 3 parts by weight of dispersing agent, 2 parts by weight of pigment and 8 parts by weight of auxiliary agent are then added, and the mixture of the component A is obtained after continuous stirring until uniform;
Preparing a component B mixed solution: 50 parts by weight of the dihydro-rosin-modified epoxy resin prepared in the example 2 in the component B, 10 parts by weight of a filler and 10 parts by weight of a photoinitiator 2-hydroxy-2-methyl-1-phenylpropionic acid are added into water and stirred uniformly;
Mixing: and mixing the component A mixed solution and the component B mixed solution, and uniformly stirring at the rotating speed of 1200r/min to obtain the high-adhesion durable floor paint.
Comparative example 1
Comparative example 1 was different from example 3 in that only the E-44 type bisphenol A type epoxy resin was added, the dihydrorosin-modified epoxy resin prepared in example 2 was not added, and the other components were the same procedure.
Comparative example 2
15Kg of E-44 bisphenol A epoxy resin is taken, then 0.5kg of tetrahydrorosin is added into the epoxy resin, the mixture is added three times, stirring reaction is carried out for 1h after each addition, the reaction is finished, the tetrahydrorosin modified epoxy resin is obtained, the tetrahydrorosin modified epoxy resin replaces the dihydrorosin modified epoxy resin in the embodiment 3, and other components are the same as those in the embodiment 3.
Comparative example 3
15Kg of E-44 bisphenol A epoxy resin is taken, then, dehydrorosin is added into the epoxy resin, 0.5kg of the dehydrorosin is added each time, the mixture is added for three times, stirring reaction is carried out for 1h after each addition, the reaction is finished, the dehydrorosin modified epoxy resin is obtained, the dehydrorosin modified epoxy resin replaces the dihydro rosin modified epoxy resin in the embodiment 3, and other components are the same as those in the embodiment 3.
Comparative example 4
Comparative example 4 differs from example 3 in that melamine formaldehyde resin was not added and the other component steps were the same.
Comparative example 5
Comparative example 5 differs from example 3 in that no acrylate or methacrylate was added and the other ingredients were identical in procedure.
Comparative example 6
Comparative example 5 differs from example 3 in that the photoinitiator 2-hydroxy-2-methyl-1-phenylpropion 1 was not added and the other components were the same procedure.
Performance test of floor paint
The floor paints of example 3 and comparative examples 1 to 5 were tested according to the method of GB/T1768-2006 method for measuring abrasion resistance of paints and varnishes by rotating rubber grinding wheel, 750g/500R abrasion resistance data were tested, and the results are shown in Table 1:
Table 1 abrasion resistance of floor paint
As can be seen from Table 1, comparative example 1 is an unmodified epoxy resin-based floor paint, comparative example 2 and comparative example 3 are respectively a tetrahydrorosin-modified and a dehydrogenated rosin-modified epoxy resin, abrasion resistance is slightly reduced as compared with example 3, abrasion resistance is improved as compared with comparative example 1, it is demonstrated that addition of modified rosin can improve abrasion resistance, but polymerization of dihydrorosin with an acrylate polymer increases crosslinking of an internal polymer of the floor paint, and abrasion resistance is more remarkably increased.
Comparative example 4 does not contain melamine formaldehyde resin, the degree of crosslinking of the floor finish polymer decreases, and thus the abrasion resistance decreases. While comparative example 5, without the addition of acrylate, comparative example 6, without the addition of photoinitiator, does not form an acrylate polymer, which results in a reduced degree of crosslinking and reduced abrasion resistance of the floor paint.
The floor paints of example 3 and comparative examples 1 to 6 were tested according to the method of GB/T9286-1998 cross-hatch test of color paint and varnish film,
The floor paints prepared in example 3 and comparative examples 1-6 were sprayed onto standard substrates according to standard process construction.
The testing method comprises the following steps: the painted surface was divided into 100 small squares with each small square having a size of 1mm×1mm by a blade. The coating condition of each cell was observed, and the results are shown in Table 2;
and (3) sticking the strong gummed paper on the square, and tearing the gummed paper after the strong gummed paper is stuck firmly. The test results are shown in table 3:
Table 2 adhesion grading for floor paints
Table 3 adhesion of floor paint
| Test results | Adhesion force | |
| Example 5 | Paint film falling off caused by pulling-up of gummed paper | Strong adhesive force |
| Comparative example 1 | No more than 5% of the checkered paint film is peeled off | Strong adhesive force |
| Comparative example 2 | No more than 5% of the checkered paint film is peeled off | Strong adhesive force |
| Comparative example 3 | No more than 5% of the checkered paint film is peeled off | Strong adhesive force |
| Comparative example 4 | Not more than 10% of the checked paint film is peeled off | Weak adhesive force |
| Comparative example 5 | Not more than 10% of the checked paint film is peeled off | Weak adhesive force |
| Comparative example 6 | Not more than 10% of the checked paint film is peeled off | Weak adhesive force |
As can be seen from table 2, when the terrace paint of the embodiment 3 of the invention is subjected to a cross-cut test of a paint film, the cutting edge is completely smooth, no cross-cut is generated, while the terrace paint of the comparative examples 1-4 has a little coating at the cross-cut, and the affected cross-cut area is more than 5% and not more than 15%; the floor paints of comparative examples 5 and 6 fall off with large fragments at the part or all of the coating along the cutting edge, and the affected cross cutting area is more than 15% and not more than 35%; the floor paint of the invention has better adhesive force, and the adhesive force is reduced due to the lack of the components of comparative examples 1-6.
From the results of Table 3, comparative examples 1 to 3 have no more than 5% of the checkered paint film falling off, indicating that neither modified rosin nor dihydrorosin causes a decrease in adhesion; comparative example 4 does not use melamine formaldehyde resin to cause the paint film to fall off to 10%, and it can be seen from the combination of table 1 that comparative examples 1 to 4 are mainly due to the reduced adhesion caused by the reduced bonding force between the floor paint and the substrate interface; whereas comparative examples 5 to 6 were mainly crosslinking of acrylate polymers, the results in Table 2 were worse, and not worse in Table 3, indicating that the floor paints of comparative examples 5 to 6 were a decrease in adhesion caused by a decrease in the crosslinking bond strength of the paint film itself.
In conclusion, the high-adhesion durable floor paint disclosed by the invention comprises the main components of polyurethane, acrylate emulsion, melamine formaldehyde resin and dihydro rosin modified epoxy resin; the floor paint has high wear resistance and excellent adhesive force, avoids the problems of repair and replacement of the paint layer caused by aggravation of damage and poor adhesion, causes attractive appearance and poor overall performance of the floor paint, and saves cost.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (8)
1. The high-adhesion durable floor paint is characterized by comprising the following raw materials in parts by weight:
component A: 45-65 parts of polyurethane, 5-10 parts of acrylate emulsion, 2-5 parts of melamine formaldehyde resin, 1-5 parts of dispersing agent, 0.5-5 parts of pigment, 10-25 parts of water and 3-15 parts of auxiliary agent;
component B: 35-65 parts of dihydro rosin modified epoxy resin, 5-18 parts of filler, 10-20 parts of water and 0.5-1.5 parts of photoinitiator;
the dihydro rosin modified epoxy resin is obtained by mixing, reacting and grafting dihydro rosin and epoxy resin, wherein the epoxy resin is bisphenol A type epoxy resin;
The mass ratio of the dihydro rosin to the epoxy resin is (1-2): (12-13).
2. The high adhesion durable floor paint according to claim 1, wherein,
The EEW of the bisphenol A type epoxy resin is 180-250g/mol, and the viscosity at 25 ℃ is 5-15 Pa.s.
3. The high-adhesion durable floor paint according to claim 1, wherein the polyurethane is obtained by polymerization reaction of diisocyanate and polyol, and the diisocyanate is one or a combination of more than two of toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate and lysine diisocyanate;
The polyalcohol is one or more than two of ethylene glycol, diethylene glycol, propylene glycol or butanediol.
4. The high adhesion durable floor paint according to claim 1, wherein,
The acrylic ester emulsion is one or a combination of more than two of acrylic ester, methyl acrylic ester, 2-ethyl acrylic ester and 3-methoxy acrylic ester.
5. The high adhesion durable floor paint according to claim 1, wherein,
The photoinitiator is one or more than two of 2-hydroxy-2-methyl-1-phenylacetone, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-2- (4-morpholinyl) -1- [4- (methylthio) phenyl ] -1-acetone, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide, 2-dimethylamino-2-benzyl-1- [4- (4-morpholinyl) phenyl ] -1-butanone and 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone.
6. The high-adhesion durable floor paint according to claim 1, wherein the auxiliary agent is one or a combination of more than two of a leveling agent, a toughening agent, a thickening agent, a defoaming agent, a wetting agent, an antibacterial agent and a mildew preventive.
7. The high-adhesion durable floor paint according to claim 1, wherein the filler is one or a combination of more than two of heavy calcium carbonate powder, kaolin, talcum powder, mica powder, silica powder and quartz powder; the filler is sieved by a 400-600 mesh sieve.
8. A method of preparing a high adhesion durable floor finish according to any one of claims 1 to 7, comprising the steps of:
Preparing a component A mixed solution: mixing polyurethane, acrylic ester emulsion, melamine formaldehyde resin and water in the component A according to parts by weight, stirring and uniformly mixing, adding a dispersing agent, pigment and an auxiliary agent, and continuously stirring until uniform;
Preparing a component B mixed solution: adding the dihydro rosin modified epoxy resin, the filler and the photoinitiator in the component B into water according to weight parts, and uniformly stirring;
Mixing: and mixing the component A mixed solution and the component B mixed solution, and uniformly stirring to obtain the high-adhesion durable floor paint.
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