CN110373115B - UV anaerobic sealant suitable for quickly sealing small workpieces - Google Patents
UV anaerobic sealant suitable for quickly sealing small workpieces Download PDFInfo
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- CN110373115B CN110373115B CN201910660096.7A CN201910660096A CN110373115B CN 110373115 B CN110373115 B CN 110373115B CN 201910660096 A CN201910660096 A CN 201910660096A CN 110373115 B CN110373115 B CN 110373115B
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- 238000007789 sealing Methods 0.000 title claims abstract description 49
- 239000000565 sealant Substances 0.000 title claims abstract description 40
- 239000000178 monomer Substances 0.000 claims abstract description 54
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 49
- 239000000843 powder Substances 0.000 claims abstract description 36
- 239000003292 glue Substances 0.000 claims abstract description 30
- 239000003999 initiator Substances 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 239000000654 additive Substances 0.000 claims abstract description 9
- 230000000996 additive effect Effects 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 28
- 239000002994 raw material Substances 0.000 claims description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- -1 acrylic ester Chemical class 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical group CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 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 2
- YQHLDYVWEZKEOX-UHFFFAOYSA-N cumene hydroperoxide Chemical group OOC(C)(C)C1=CC=CC=C1 YQHLDYVWEZKEOX-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 5
- 239000002904 solvent Substances 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 3
- 239000000779 smoke Substances 0.000 abstract description 3
- 238000006116 polymerization reaction Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000001723 curing Methods 0.000 description 16
- 239000000243 solution Substances 0.000 description 16
- 239000000084 colloidal system Substances 0.000 description 8
- 239000011521 glass Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000003973 paint Substances 0.000 description 6
- 229920001903 high density polyethylene Polymers 0.000 description 4
- 239000004700 high-density polyethylene Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920006351 engineering plastic Polymers 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003380 propellant Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 238000000016 photochemical curing Methods 0.000 description 2
- JZEXORLUKMQOFA-UHFFFAOYSA-N 2-(1-ethoxyethyl)-2-(hydroxymethyl)propane-1,3-diol prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.CCOC(C)C(CO)(CO)CO JZEXORLUKMQOFA-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- RZVINYQDSSQUKO-UHFFFAOYSA-N 2-phenoxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC1=CC=CC=C1 RZVINYQDSSQUKO-UHFFFAOYSA-N 0.000 description 1
- LRHMHLCHHZCCMI-UHFFFAOYSA-N CC(C)C(C=CC=C1)=C1O.OO Chemical compound CC(C)C(C=CC=C1)=C1O.OO LRHMHLCHHZCCMI-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920001800 Shellac Polymers 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- GUCYFKSBFREPBC-UHFFFAOYSA-N [phenyl-(2,4,6-trimethylbenzoyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C(=O)C1=C(C)C=C(C)C=C1C GUCYFKSBFREPBC-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 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 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- FSDNTQSJGHSJBG-UHFFFAOYSA-N piperidine-4-carbonitrile Chemical compound N#CC1CCNCC1 FSDNTQSJGHSJBG-UHFFFAOYSA-N 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention provides a UV anaerobic sealant suitable for quickly sealing a small workpiece, which mainly comprises the following components: acrylate, toughening monomer, photoinitiator, anaerobic curing initiator, additive and fluorescent powder. The sealant prepared by the invention has the advantages of quick sealing, small using amount, high curing efficiency and capability of being cured quickly within 2 seconds after irradiation, and the solid content of a glue solution reaches more than 99% (no solvent volatilization); the sealant has a double polymerization mechanism, and can be cured by light-initiated curing reaction or in an anaerobic environment; meanwhile, in order to meet the particularity of small-sized workpieces, particularly cartridges, the glue solution prepared by the invention can be directly decomposed into clear smoke at the instantaneous high temperature in a gun bore and then dispersed, and the glue cannot be attached and accumulated in the gun barrel and the air duct to cause the failure of firearms. The invention has simple preparation process, can meet the requirement of large-scale engineering application, and is particularly suitable for modern automatic process.
Description
Technical Field
The invention belongs to the field of adhesives, and particularly relates to a UV anaerobic sealing adhesive suitable for quickly sealing a small workpiece.
Background
At present, the cartridge case which is produced and measured in China is coated with sealing glue between primer and cartridge case, which is called as 'glue dispensing' and aims to prevent the cartridge from being damped and deteriorated after being stored for a long time. The method has two modes, one mode is to glue the surface of the primer completely, and the other mode is to glue the seam between the primer and the primer chamber. The former has simple process equipment and the defects of waste of glue solution, and the glue solution can flow to the shell part sometimes to influence the appearance; in addition, the detached film sometimes blocks the striker hole of the firearm. Therefore, the domestic bomb is mostly used in the latter mode, namely, glue is only coated at the joint of the primer and the primer chamber. The sealing glue is usually selected from anticorrosive paint, nitro varnish or a mixture of anticorrosive paint and shellac paint, and sometimes the glue is dyed into different colors in order to distinguish the bullet species, for example, the primer part of the domestic 56-type tracer projectile is fully coated with green glue. The common bullet is different according to the components and colors of different sealants of manufacturers. The bullet shell is sent to the internal coating opening after primer dispensing, and the purpose is to ensure the tightness of the bullet and prevent moisture from permeating from the joint of the bullet and the bullet shell to cause the deterioration of propellant powder and primer. The method is that a layer of special asphalt paint with certain viscosity is coated on the inner wall of the mouth of the cartridge case, and the width of the asphalt paint is about 2-4 mm. When the bullet is loaded into the bullet shell, the bullet is extruded by the bottom of the bullet, and a compact sealing ring is formed at the bottom of the bullet and around the inner wall of the bullet shell. After the coating opening is internally coated, the cartridge case is generally dried for a period of time, so that the surface of the adhesive film is hardened, the adhesive film is not adhered to and hung with propellant powder particles, and meanwhile, the cartridge case cannot be completely dried, otherwise, a complete sealing ring cannot be formed.
The existing sealing glue adopted for sealing small workpieces similar to bullet sealing has the defects of slow drying speed, needing the airing time of several minutes or even more than ten minutes, and volatilizing a film-forming medium (namely a solvent) to form residues; moreover, the sealing effect is also common, and an outer coating process is required to compensate, which affects the sealing efficiency of the small workpiece.
Disclosure of Invention
The invention aims to provide a UV anaerobic sealant suitable for rapidly sealing small workpieces, which can improve the efficiency of the existing small workpiece sealing process, namely, the sealant has the advantages of high curing efficiency, faster sealing, less using amount and no solvent volatilization.
The purpose of the invention is realized by the following technical scheme:
the UV anaerobic sealant is characterized by being prepared from the following raw materials in percentage by mass: 70-90% of acrylate, 5-25% of toughening monomer, 1-5% of photoinitiator, 1-3% of anaerobic curing initiator, 1-2.5% of additive and 0.01-0.03% of fluorescent powder.
Further, the acrylic ester comprises the following components in percentage by mass: a combination of acrylate monomer A-DPGDA (dipropylene glycol diacrylate) 70-90%, or acrylate monomer B-PHEOA (phenoxyethyl acrylate) 60-90% and acrylate monomer C-EO-TMPTA (ethoxytrimethylolpropane triacrylate) 1-10%; the toughening monomer is IOA (isooctyl acrylate); the photoinitiator comprises the following components in percentage by mass: photoinitiator A- -HCPK (1-hydroxycyclohexyl phenyl ketone) 1% -5% and photoinitiator B- -TPO ((2,4, 6-trimethylbenzoyl) diphenyl phosphine oxide) 0% -1.5% composition, or photoinitiator C- -XBPO (phenyl bis (2,4, 6-trimethylbenzoyl) phosphine oxide) 1% -5% alone; the anaerobic curing initiator is CHP (hydroxyl cumene hydroperoxide); the additive is acrylic acid.
Further, the fluorescent powder can be selected from blue fluorescent powder.
Further, in order to improve the fluidity and reduce the odor, the UV anaerobic sealant comprises the following specific raw materials in percentage by mass: acrylate monomer A- -DPGDA: 78%, toughening monomer-IOA: 15 percent; photoinitiator a — HCPK: 2.5 percent; photoinitiator B- -TPO: 0.48 percent; anaerobic cure initiator — CHP: 2 percent; additive-acrylic acid: 2 percent; blue fluorescent powder: 0.02 percent.
Further, in order to accelerate the photocuring rate of the system mainly comprising the acrylate monomer A, the UV anaerobic sealant comprises the following specific raw materials in percentage by mass: acrylate monomer A- -DPGDA: 80%, toughening monomer-IOA: 13 percent; photoinitiator C — XBPO: 2.98 percent; anaerobic cure initiator — CHP: 2.5 percent; additive-acrylic acid: 1.5 percent; blue fluorescent powder: 0.02 percent.
Further, in order to improve the toughness and the bonding strength of the colloid, the UV anaerobic sealant comprises the following specific raw materials in percentage by mass: acrylate monomer B- -PHEOA: 67%, acrylate monomer C- -EO-TMPTA: 7%, toughening monomer-IOA: 20 percent; photoinitiator a — HCPK: 2.5 percent; photoinitiator B- -TPO: 0.48 percent; anaerobic cure initiator — CHP: 2 percent; additive-acrylic acid: 1 percent; blue fluorescent powder: 0.02 percent.
Further, in order to accelerate the photocuring rate of the acrylate system mainly comprising the acrylate monomers B and C, the UV anaerobic sealant comprises the following specific raw materials in percentage by mass: acrylate monomer B- -PHEOA: 68%, acrylate monomer C- -EO-TMPTA: 5%, toughening monomer-IOA: 20 percent; photoinitiator C — XBPO: 2.98 percent; anaerobic cure initiator — CHP: 3 percent; additive-acrylic acid: 1 percent; blue fluorescent powder: 0.02 percent.
Further, the UV anaerobic sealant suitable for rapidly sealing the small workpiece is prepared by the following steps: firstly, sequentially adding a toughening monomer, fluorescent powder and a photoinitiator in the ratio into a reaction kettle, starting a high-speed stirrer to pre-stir, and stopping the high-speed stirrer after uniformly stirring; then adding the additive, the anaerobic curing initiator and the acrylate in the ratio into the reaction kettle in sequence, and starting a high-speed stirrer for final stirring; and (5) uniformly stirring to obtain a sample, and packaging and storing.
The inventor finds that the glue solution can naturally flow and seal the elastic opening gap through the capillary action in the experimental process, the glue solution cannot flow due to too high viscosity, and the glue solution drips when the viscosity is too low. The technical problem is difficult to control in the research and development process, and the invention adopts an acrylate chemical system, adopts proper components and proportion relation on the basis of ensuring the fluidity, so that the glue solution produced by the invention has the advantages of fast sealing, high curing rate, no dripping phenomenon of the glue solution and good sealing effect.
Further, the pre-stirring time is 15-30 min, the stirring speed is 100-.
Further, the final stirring time is 20min, the stirring speed is 200-.
Because the UV anaerobic sealant prepared by the invention is suitable for quickly sealing small workpieces, particularly cartridges, the cured colloid can be evaporated, combusted or decomposed at high temperature, and residues of the cured colloid are attached and accumulated in a gun tube and an air guide tube to cause the failure of a firearm. By adopting the proportioning relation and the preparation method of the invention, the solid colloid can be directly decomposed into clear smoke at the instantaneous high temperature in the gun bore and scattered, and the aim of preventing the colloid residue from blocking the gun barrel or the air duct is fulfilled.
Furthermore, the product needs to be stored in a sealed mode, the container can not be made of metal, the material can be glass or common engineering plastics (such as HDPE (high-density polyethylene)), the container cannot be filled in a package, a part of air is reserved in the container (such as 1/3 with reserved volume), and the storage environment is ventilated in a shady and cool mode.
The UV anaerobic sealant is suitable for quickly sealing small workpieces and is characterized by being prepared by the following steps:
a. selecting the raw materials according to the following proportioning relation by mass percent: acrylate monomer A-DPGDA 70% -90%, or acrylate monomer B-PHEOA 60% -90% and acrylate monomer C-EO-TMPTA 1% -10% composition, toughening monomer-IOA 5% -25%, photoinitiator A-HCPK 1% -5% and photoinitiator B-TPO 0% -1.5% composition, or single photoinitiator C-XBPO 1% -5%, anaerobic curing initiator-CHP 1% -3%, additive-acrylic acid: 1 to 2.5 percent of blue fluorescent powder and 0.01 to 0.03 percent of blue fluorescent powder;
b. b, sequentially adding the toughening monomer, the blue fluorescent powder and the photo initiator which are prepared in the step a into a reaction kettle, starting a high-speed stirrer to stir in advance, wherein the stirring time is 15-30 min, the stirring speed is 100-200r/min, the stirring condition is normal temperature and normal pressure, and stopping the high-speed stirrer until the materials are uniformly stirred;
c. adding the acrylic acid, the anaerobic curing initiator and the acrylic ester which are prepared in the step a into the reaction kettle in sequence, starting a high-speed stirrer to stir for 20min at the stirring speed of 200-500r/min under the normal temperature and pressure conditions;
d. uniformly stirring to obtain a sample, and packaging and storing; the sealed container can not be made of metal, the material can be glass or common engineering plastics (such as HDPE low density polyethylene), the container can not be filled in the package, a reserved part of air (such as 1/3 with reserved volume) is reserved, and the storage environment is ventilated in shade.
The invention has the following technical effects:
(1) the product prepared by the invention has a double polymerization mechanism, and can be cured by photo-initiated curing reaction or in an anaerobic environment. The glue solution naturally circulates and fills the whole small-sized workpiece sealing opening through the capillary action, after the glue solution on the surface of the gap is irradiated and cured by ultraviolet light, an anaerobic environment is created for a small amount of glue solution flowing into the gap of the sealing opening, and finally the glue solution in the gap is cured in the anaerobic environment. Anaerobic curing as a secondary mechanism ensures that no glue liquid remains between the sealing opening gaps which can not be reached by ultraviolet rays.
(2) The product prepared by the invention has the advantages of quick sealing, small using amount and no solvent volatilization, can meet the current requirements on green environmental protection and safe production, and conforms to the national industrial policy of energy conservation, emission reduction and clean production. Meanwhile, the glue solution prepared by the invention has high curing efficiency, and can be rapidly cured within 2 seconds after being irradiated by a UV LED light source of Dongguan scientific and technology (Shanghai) Co., Ltd; when a workpiece sealed by the sealant disclosed by the invention is subjected to a sealing test in water, no bubbles escape, and the sealing property is excellent.
(3) The preparation process is simple and can meet the requirement of large-scale engineering application. Meanwhile, the glue solution prepared by the invention can be directly decomposed into clear smoke at the instantaneous high temperature in the gun bore and scattered, so that the aim of preventing glue residues from blocking a gun barrel or an air duct is fulfilled.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to specific steps and formulas.
The following methods were used in the following examples:
a. before feeding, checking whether the operation of each equipment is normal or not, and if not, not performing feeding production;
b. selecting raw materials according to the formula and the proportion in the following examples and making corresponding records;
c. b, sequentially adding the toughening monomer, the fluorescent powder and the photoinitiator which are prepared in the step b into the reaction kettle, starting a high-speed stirrer to stir in advance, wherein the stirring time is 15-30 min, the stirring speed is 100-200r/min, the stirring condition is normal temperature and normal pressure, and stopping the high-speed stirrer until the materials are uniformly stirred;
d. adding the additive, the anaerobic curing initiator and the acrylic ester which are prepared in the step b into the reaction kettle in sequence, starting a high-speed stirrer to stir for 20min at the stirring speed of 200-500r/min under the normal temperature and pressure conditions;
e. stopping the high-speed stirrer after uniform stirring, and sampling and inspecting the primary product; during the inspection, continuously stirring, wherein the stirring speed is consistent with that of the step d, and waiting for an inspection result;
f. discharging after the viscosity, crosslinking curing and infiltration of the product are inspected to be qualified by self inspection, barreling and weighing, and packaging and storing; the sealed container can not be made of metal, the material can be glass or common engineering plastics (such as HDPE low density polyethylene), the container can not be filled in the package, a part of air is reserved (such as 1/3 with reserved volume), and the storage environment is ventilated in shade.
Wherein the acrylate comprises the following components: a combination of acrylate monomer A- -DPGDA, or acrylate monomer B- -PHEOA and acrylate monomer C- -EO-TMPTA; the toughening monomer is IOA; the photo-initiator is: photoinitiator A- -a combination of HCPK and photoinitiator B- -TPO, or photoinitiator C alone- -XBPO; the anaerobic curing initiator is CHP; the additive is acrylic acid.
Example 1:
the UV anaerobic sealant suitable for quickly sealing small workpieces comprises the following components in percentage by mass: acrylate monomer A- -DPGDA: 70%, toughening monomer-IOA: 23 percent; photoinitiator a — HCPK: 2.5 percent; photoinitiator B- -TPO: 0.48 percent; anaerobic cure initiator — CHP: 2 percent; additive-acrylic acid: 2 percent; blue fluorescent powder: 0.02 percent.
Example 2:
the UV anaerobic sealant suitable for quickly sealing small workpieces comprises the following components in percentage by mass: acrylate monomer A- -DPGDA: 78%, toughening monomer-IOA: 15 percent; photoinitiator a — HCPK: 2.5 percent; photoinitiator B- -TPO: 0.48 percent; anaerobic cure initiator — CHP: 2 percent; additive-acrylic acid: 2 percent; blue fluorescent powder: 0.02 percent.
Example 3:
the UV anaerobic sealant suitable for quickly sealing small workpieces comprises the following components in percentage by mass: acrylate monomer A- -DPGDA: 90%, toughening monomer-IOA: 5 percent; photoinitiator a — HCPK: 1.5 percent; photoinitiator B- -TPO: 0.48 percent; anaerobic cure initiator — CHP: 1 percent; additive-acrylic acid: 2 percent; blue fluorescent powder: 0.02 percent.
Example 4:
the UV anaerobic sealant suitable for quickly sealing small workpieces comprises the following components in percentage by mass: acrylate monomer A- -DPGDA: 70%, toughening monomer-IOA: 23 percent; photoinitiator C — XBPO: 2.98 percent; anaerobic cure initiator — CHP: 2.5 percent; additive-acrylic acid: 1.5 percent; blue fluorescent powder: 0.02 percent.
Example 5:
the UV anaerobic sealant suitable for quickly sealing small workpieces comprises the following components in percentage by mass: acrylate monomer A- -DPGDA: 78%, toughening monomer-IOA: 15 percent; photoinitiator C — XBPO: 2.98 percent; anaerobic cure initiator — CHP: 2 percent; additive-acrylic acid: 2 percent; blue fluorescent powder: 0.02 percent.
Example 6:
the UV anaerobic sealant suitable for quickly sealing small workpieces comprises the following components in percentage by mass: acrylate monomer A- -DPGDA: 90%, toughening monomer-IOA: 5 percent; photoinitiator C — XBPO: 1.98 percent; anaerobic cure initiator — CHP: 1 percent; additive-acrylic acid: 2 percent; blue fluorescent powder: 0.02 percent.
Example 7:
the UV anaerobic sealant suitable for quickly sealing small workpieces comprises the following components in percentage by mass: acrylate monomer B- -PHEOA: 60%, acrylate monomer C- -EO-TMPTA: 10%, toughening monomer-IOA: 24 percent; photoinitiator a — HCPK: 1.5 percent; photoinitiator B- -TPO: 0.48 percent; anaerobic cure initiator — CHP: 2.5 percent; additive-acrylic acid: 1.5 percent; blue fluorescent powder: 0.02 percent.
Example 8:
the UV anaerobic sealant suitable for quickly sealing small workpieces comprises the following components in percentage by mass: acrylate monomer B- -PHEOA: 70%, acrylate monomer C- -EO-TMPTA: 6%, toughening monomer- -IOA: 18 percent; photoinitiator a — HCPK: 1.5 percent; photoinitiator B- -TPO: 0.48 percent; anaerobic curing initiator — CHP: 2.5 percent; additive-acrylic acid: 1.5 percent; blue fluorescent powder: 0.02 percent.
Example 9:
the UV anaerobic sealant suitable for quickly sealing small workpieces comprises the following components in percentage by mass: acrylate monomer B- -PHEOA: 88%, acrylate monomer C- -EO-TMPTA: 3%, toughening monomer-IOA: 5 percent; photoinitiator a — HCPK: 1.5 percent; photoinitiator B- -TPO: 0.48 percent; anaerobic curing initiator — CHP: 1 percent; additive-acrylic acid: 1 percent; blue fluorescent powder: 0.02 percent.
Example 10:
the UV anaerobic sealant suitable for quickly sealing small workpieces comprises the following components in percentage by mass: acrylate monomer B- -PHEOA: 88%, acrylate monomer C- -EO-TMPTA: 3%, toughening monomer-IOA: 5 percent; photoinitiator C — XBPO: 1.98 percent; anaerobic cure initiator — CHP: 1 percent; additive-acrylic acid: 1 percent; blue fluorescent powder: 0.02 percent.
Example 11:
the UV anaerobic sealant suitable for quickly sealing small workpieces comprises the following components in percentage by mass: acrylate monomer B- -PHEOA: 70%, acrylate monomer C- -EO-TMPTA: 6%, toughening monomer- -IOA: 18 percent; photoinitiator C — XBPO: 1.98 percent; anaerobic cure initiator — CHP: 2.5 percent; additive-acrylic acid: 1.5 percent; blue fluorescent powder: 0.02 percent.
Example 12:
the UV anaerobic sealant suitable for quickly sealing small workpieces comprises the following components in percentage by mass: acrylate monomer B- -PHEOA: 60%, acrylate monomer C- -EO-TMPTA: 10%, toughening monomer-IOA: 24 percent; photoinitiator C — XBPO: 1.98 percent; anaerobic cure initiator — CHP: 2.5 percent; additive-acrylic acid: 1.5 percent; blue fluorescent powder: 0.02 percent.
The UV anaerobic sealants prepared in the above examples 1-12 are irradiated by UV LED light source of Toyobo scientific and limited company, all of which can be cured rapidly within 2 seconds. The performance indexes of the stock solution are shown in the following table 1, and the performance indexes of the curing colloid are shown in the following table 2.
Wherein the stability test criteria of Table 1 below are in diameter x length
Adding 1/3 solvent glue solution into the glass test tube, placing the glass test tube into an oven at 80 +/-2 ℃, and observing the time for the glue solution to solidify; the gel time is more than or equal to 30min, and the product is qualified.
The detection standard of UV curing in Table 2 below is to apply about 1mL of the gel sample to a glass test plate by a dropper, and irradiate the glass test plate for 2 seconds by an ultraviolet light source (the irradiation wavelength is 365nm, the irradiation intensity is 2000mW/cm2, and the irradiation distance is 10 mm); the compatibility test comprises the compatibility test of the cured colloid with metals (copper, zinc and iron), electrophoretic paint and propellant powder; the shooting residue criteria are that the solidified gel should be able to evaporate, burn or decompose at high temperatures and that the residue should not adhere to and build up in the barrel and airway. As can be seen from Table 2 below, the sealing compound prepared has good fluidity, can cover the small-sized workpiece in a short time and is completely cured, and the small-sized workpiece after sealing has no bubble overflow in the sealing property experiment.
Table 1: raw liquid performance index
| Detecting items | Technical index | Detection standard |
| Appearance of the product | Fluorescent liquid with various colors | Visual inspection of |
| Viscosity c.p. @25 deg.C | 5-20 | GB/T2794-2013 |
| Content of non-volatile substance @105 deg.C, after 180min | ≥99 | GB/T2793-1995 |
| Stability of | Qualified | For details see the above description |
Table 2: solidified colloid
Claims (7)
1. The utility model provides a sealed glue of UV anaerobism suitable for small-size work piece is sealed fast which characterized in that: the material is prepared from the following raw materials in percentage by mass: 70-90% of acrylate, 5-25% of toughening monomer, 1-5% of photoinitiator, 1-3% of anaerobic curing initiator, 1-2.5% of additive and 0.01-0.03% of fluorescent powder;
the acrylate comprises the following components in percentage by mass: a composition of acrylic ester monomer A-dipropylene glycol diacrylate 70-90%, or acrylic ester monomer B-phenoxy ethyl acrylate 60-90% and acrylic ester monomer C-ethoxy trimethylolpropane triacrylate 1-10%; the toughening monomer is isooctyl acrylate; the photoinitiator comprises the following components in percentage by mass: 1 to 5 percent of photoinitiator A and 0 to 1.5 percent of photoinitiator B (2,4, 6-trimethylbenzoyl) diphenyl phosphine oxide, or 1 to 5 percent of single photoinitiator C-phenyl bis (2,4, 6-trimethylbenzoyl) phosphine oxide; the anaerobic curing initiator is cumyl hydroperoxide; the additive is acrylic acid.
2. The UV anaerobic sealant suitable for rapidly sealing small workpieces as claimed in claim 1, is characterized in that: the fluorescent powder can be blue fluorescent powder.
3. The UV anaerobic sealant suitable for rapidly sealing small workpieces as claimed in claim 2, is characterized in that: the UV anaerobic sealant comprises the following specific raw materials in percentage by mass: acrylate monomer a-dipropylene glycol diacrylate: 78%, toughening monomer-isooctyl acrylate: 15 percent; photoinitiator a-1-hydroxycyclohexyl phenyl ketone: 2.5 percent; photoinitiator B- (2,4, 6-trimethylbenzoyl) diphenylphosphine oxide: 0.48 percent; anaerobic curing initiator-cumyl hydroperoxide: 2 percent; additive-acrylic acid: 2 percent; blue fluorescent powder: 0.02 percent.
4. The UV anaerobic sealant suitable for rapidly sealing small workpieces as claimed in claim 2, is characterized in that: the UV anaerobic sealant comprises the following specific raw materials in percentage by mass: acrylate monomer a-dipropylene glycol diacrylate: 80%, toughening monomer-isooctyl acrylate: 13 percent; photoinitiator C-phenylbis (2,4, 6-trimethylbenzoyl) phosphine oxide: 2.98 percent; anaerobic curing initiator-cumyl hydroperoxide: 2.5 percent; additive-acrylic acid: 1.5 percent; blue fluorescent powder: 0.02 percent.
5. The UV anaerobic sealant suitable for rapidly sealing small workpieces as claimed in claim 2, is characterized in that: the UV anaerobic sealant comprises the following specific raw materials in percentage by mass: acrylate monomer B-phenoxy ethyl acrylate: 67%, acrylate monomer C-ethoxytrimethylolpropane triacrylate: 7%, toughening monomer-isooctyl acrylate: 20 percent; photoinitiator a-1-hydroxycyclohexyl phenyl ketone: 2.5 percent; photoinitiator B- (2,4, 6-trimethylbenzoyl) diphenylphosphine oxide: 0.48 percent; anaerobic curing initiator-cumyl hydroperoxide: 2 percent; additive-acrylic acid: 1 percent; blue fluorescent powder: 0.02 percent.
6. The UV anaerobic sealant suitable for rapidly sealing small workpieces as claimed in claim 2, is characterized in that: the UV anaerobic sealant comprises the following specific raw materials in percentage by mass: acrylate monomer B-phenoxy ethyl acrylate: 68%, acrylate monomer C-ethoxytrimethylolpropane triacrylate: 5%, toughening monomer-isooctyl acrylate: 20 percent; photoinitiator C-phenylbis (2,4, 6-trimethylbenzoyl) phosphine oxide: 2.98 percent; anaerobic curing initiator-cumyl hydroperoxide: 3 percent; additive-acrylic acid: 1 percent; blue fluorescent powder: 0.02 percent.
7. The UV anaerobic sealant suitable for the rapid sealing of small workpieces as claimed in any one of claims 1 to 6, which is prepared by the following steps: firstly, sequentially adding a toughening monomer, fluorescent powder and a photoinitiator in the ratio into a reaction kettle, starting a high-speed stirrer to pre-stir, and stopping the high-speed stirrer after uniformly stirring; then adding the additive, the anaerobic curing initiator and the acrylic ester in the ratio into the reaction kettle in sequence, and starting a high-speed stirrer for final stirring; and (5) uniformly stirring to obtain a sample, and packaging and storing.
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| US6342545B1 (en) * | 1998-11-23 | 2002-01-29 | Loctite Corporation | Radical-curable adhesive compositions, reaction products of which demonstrate superior resistance to thermal degradation |
| US6150479A (en) * | 1998-11-23 | 2000-11-21 | Loctite Corporation | Radical-curable adhesive compositions, reaction products of which demonstrate superior resistance to thermal degradation |
| US6883413B2 (en) * | 1999-07-19 | 2005-04-26 | Henkel Corporation | Visible and UV/visible light anaerobic curable primer mix coating |
| US7146897B1 (en) * | 1999-07-19 | 2006-12-12 | Henkel Corporation | UV/visible light and anaerobic curable composition |
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