CN106633635B - The method of composition, foam and cavity structure enhancing - Google Patents
The method of composition, foam and cavity structure enhancing Download PDFInfo
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- CN106633635B CN106633635B CN201610978713.4A CN201610978713A CN106633635B CN 106633635 B CN106633635 B CN 106633635B CN 201610978713 A CN201610978713 A CN 201610978713A CN 106633635 B CN106633635 B CN 106633635B
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- cavity structure
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- 239000006260 foam Substances 0.000 title claims abstract description 58
- 239000000203 mixture Substances 0.000 title claims abstract description 54
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000011797 cavity material Substances 0.000 title abstract description 4
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 33
- 239000003822 epoxy resin Substances 0.000 claims abstract description 32
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 15
- 239000004917 carbon fiber Substances 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims abstract description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 150000001412 amines Chemical class 0.000 claims abstract description 12
- 239000004088 foaming agent Substances 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 9
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 7
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 7
- 238000005187 foaming Methods 0.000 claims description 15
- 239000002131 composite material Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 208000002925 dental caries Diseases 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 125000005586 carbonic acid group Chemical group 0.000 claims 1
- 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 description 13
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 6
- -1 graphite alkene Chemical class 0.000 description 6
- 229930185605 Bisphenol Natural products 0.000 description 5
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- QOHMWDJIBGVPIF-UHFFFAOYSA-N n',n'-diethylpropane-1,3-diamine Chemical compound CCN(CC)CCCN QOHMWDJIBGVPIF-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 229920000768 polyamine Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 3
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910000022 magnesium bicarbonate Inorganic materials 0.000 description 1
- 235000014824 magnesium bicarbonate Nutrition 0.000 description 1
- 239000002370 magnesium bicarbonate Substances 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000003961 organosilicon compounds Chemical class 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical class OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/544—Silicon-containing compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention provides the method for a kind of composition, foam and cavity structure enhancing, and wherein composition, foam includes the component of following parts by weight: 60-85 parts of epoxy resin, 5-15 parts of amine curing agent, 5-20 parts of foaming agent, 0.2-2 parts of graphene, 0.5-5 parts of antioxidant, 0.2-0.8 parts of silane coupling agent.The method of cavity structure enhancing provided by the invention, specifically includes: arranging carbon fiber felt-cloth in cavity；Above-mentioned composition, foam is injected in cavity；Above-mentioned composition, foam is kept the temperature into 10-30min at 110-150 DEG C；Composition, foam provided by the invention effectively can be filled and be enhanced to automobile cavity, and the NVH performance and security performance of automobile are improved.
Description
Technical field
The present invention relates to a kind of methods that composition, foam and cavity structure enhance, and belong to foamed material technical field.
Background technique
NVH (Noise, Vibration&Harshness, noise, the vibration and sound vibration roughness) performance and safety of automobile
Performance is to measure the integrated technology index of Hyundai Motor manufacture level, since body of a motor car is there are some cavitys, such as threshold, preceding
It encloses, side wall etc., cavity can transmit engine noise, exhaust pipe noise, the noise of wind and tire noise etc..Work as galloping
When, these cavitys will form High Speed Airflow Within, generate noise and vibration.
Noise and vibration in order to prevent, common resolving ideas are that metal buffer layer and noise reduction are arranged in automobile cavity
Layer, or the materials such as filling sponge or film are flowed in cavity with obstructing air.But metal buffer layer and noise reduction layer density
It is larger, increase the weight of body of a motor car.In bodywork cavity although filling sponge or film can be realized vibration and noise reducing, still
It is unobvious to the humidification of cavity structure, can not truly improve the NVH performance of automobile.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of composition, foams, by epoxy resin solidifying system
Middle addition foaming agent and graphene make the composition, foam can be used in the filling and enhancing of cavity structure.
The present invention also provides a kind of methods of cavity structure enhancing, using above-mentioned composition, foam, in cavity structure
It is compound to form the foaming enhancing that the epoxy resin solidifying system using carbon fiber felt-cloth as enhancement layer, with foam structure is skeleton
Material, foaming enhancing composite material can be filled to cavity structure and realize the enhancing of cavity structure.
The present invention provides a kind of composition, foam, the component including following parts by weight:
60-85 parts of epoxy resin, 5-15 parts of amine curing agent, 5-20 parts of foaming agent, 0.2-2 parts of graphene, antioxidant
0.5-5 parts, 0.2-0.8 parts of silane coupling agent.
Specifically, viscosity of the above-mentioned composition, foam at 20-30 DEG C is 500-1000Pas, above-mentioned viscosity is conducive to
Composition, foam is injected into cavity, for example composition, foam can be injected into vapour in a manner of spraying (injection) at room temperature
In vehicle cavity.
Specifically, the blowing temperature of above-mentioned composition, foam is 110-150 DEG C, to guarantee at a lower temperature can
It realizes the solidification and expansion of above-mentioned composition, foam, is conducive to filling cavity structure.
The present invention is not specifically limited the epoxy resin in composition, foam, and asphalt mixtures modified by epoxy resin commonly used in the art can be selected
Rouge, such as bisphenol A type epoxy resin, bisphenol f type epoxy resin or bisphenol-s epoxy resin, it is contemplated that contain in composition, foam
There is graphite olefinic constituent, specific surface area is very big, the viscosity of composition, foam easy to increase, therefore preferred liquid-state epoxy resin
(also known as liquid epoxies), the especially viscosity at 20-30 DEG C are no more than the liquid-state epoxy resin of 1000Pas.It is logical
The often more general liquid bisphenol A type epoxy resin of selection, such as bisphenol A-type E44 (E44 bisphenol A epoxide resin), bisphenol A-type
E51 (E51 bisphenol A epoxide resin).
Amine curing agent is widely used as the organic polyamine class compound of epoxy curing agent, and the present invention is to amine curing agent
It is not specifically limited, as long as it is adapted to the epoxy resin in composition, foam, aliphatic commonly used in the art can be selected
The amine curing agents such as the derivative of polyamine, aromatic polyamine or amine, for example can be 3 diethyl aminopropylamine, it is also possible to
The other common amine curing agents in this field.
Epoxy resin and amine curing agent crosslink solidification at a suitable temperature, generate netted or three-dimensional-structure ring
Oxygen resin curing system.
Antioxidant (also referred to as antioxidant) is able to suppress the oxidative degradation of epoxy resin solidifying system, extends epoxy resin
The service life of curing system.Usually select Hinered phenols antioxidant that is pollution-free, high-efficient and having a wide range of application, such as antioxygen
It is other common to be also possible to this field for agent 1010, i.e., four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters
Epoxy resin antioxidant.
Foaming agent can select physical blowing agent, usually select carbonate foaming agent, for example can be calcium carbonate, carbonic acid
One of magnesium and sodium bicarbonate are a variety of, during epoxy resin and amine curing agent crosslink cured, foaming agent
Heated decomposition releases the gases such as carbon dioxide, expands epoxy resin solidifying system, obtains having foam structure
Epoxy resin solidifying system.
Inventor the study found that improve composition, foam in graphene content, epoxy resin solidifying system can be improved
Intensity and heat resistance, but if graphene too high levels, intensity and the heat resistance variation of epoxy resin solidifying system are all unknown
It is aobvious, in the actual production process, it is usually added into 0.6-2 parts by weight of graphite alkene, such as 0.6-1.2 parts by weight, it will be able to guarantee ring
Oxygen resin curing system has preferable intensity and heat resistance.
Silane coupling agent is a kind of in the molecule while containing there are two types of the organo-silicon compound of different chemical property groups, sheets
Invention does not make considered critical to silane coupling agent, and the silane coupling agent of this field routine, such as three ethoxy of γ-aminopropyl can be selected
Base silane, or select the silane coupling agent of following two categories chemical general formula: R-Si (OR1)3And RR2-Si (OR1)2, wherein R is
Hydrogen atom, methyl, ethyl, propyl (including n-propyl and isopropyl), butyl (including normal-butyl, sec-butyl, isobutyl group and tertiary fourth
Base), phenyl, cyclohexyl, vinyl, acrylic, aminoethylaminopropyl, mercaptopropyi, anilinomethyl, R1 be methyl or ethyl,
R2 is hydrogen atom, methyl or ethyl.In a specific embodiment of the invention, the additional amount of silane coupling agent is generally 0.2-
0.6 parts by weight.
Composition, foam in the present invention does not need the forming methods such as conventional extrusion, injection molding, it is only necessary to by said ratio
Each component be uniformly mixed can be obtained, suitable solvent can be added when necessary, can not only make each component be uniformly mixed, but also
The viscosity of adjustable composition, foam.
The present invention also provides a kind of methods of cavity structure enhancing, comprising:
Carbon fiber felt-cloth is arranged in cavity；
Above-mentioned composition, foam is injected in cavity；
Above-mentioned composition, foam is kept the temperature into 10-30min at 110-150 DEG C.
Before composition, foam injects cavity, carbon fiber felt-cloth should be arranged in cavity first, this field can be used
Conventional method is arranged, and the present invention does not make considered critical to this, specifically can generally be arranged two layers according to the size of cavity structure
To four layers of carbon fiber felt-cloth.
Carbon fiber felt-cloth arranges into rear, and the modes such as spraying (injection) can be used, and composition, foam is injected in cavity, than
The mode of Control During Paint Spraying by Robot can be used, such as to improve injection efficiency.Specific quantity for spray can according to the big minor adjustment of cavity volume,
General every cubic meter volume need to use 20-40kg composition, foam.
The above-mentioned process kept the temperature to composition, foam, practical is exactly the foaming process of composition, foam, can be passed through
Cavity structure is toasted, the solidification temperature of epoxy resin and amine curing agent and the thermal decomposition temperature of foaming agent are reached.
At this point, epoxy resin and amine curing agent crosslink solidification, and stretching, extension is expanded under the gas effect that foaming agent releases, directly
It is completed to solidification, forms the epoxy resin solidifying system with foam structure, be filled part or all of cavity structure.
Since above-mentioned epoxy resin solidifying system tool itself is a bit sticky, not only have with cavity inner wall good
Adhesiveness, and be firmly combined with the carbon fiber felt-cloth arranged in advance in cavity.Also, under the action of silane coupling agent, ring
Combination between oxygen resin curing system and carbon fiber felt-cloth is stronger.
Above-mentioned cavity structure especially refers to the cavity structure of body of a motor car.
The present invention also provides a kind of foaming to enhance composite material, is that above-mentioned composition, foam is being disposed with carbon fiber felt-cloth
Cavity in obtain by foaming.
It is using carbon fiber felt-cloth as enhancement layer, with the epoxy resin cured body of foam structure that the foaming, which enhances composite material,
System is skeleton, forms good adherency and filling to cavity structure, so as to play the role of sealing to cavity structure, with
Air flowing is obstructed, noise is reduced, improves the NVH performance of automobile；Also, since foaming enhancing composite material has centainly
Intensity is applied in the cavity of body of a motor car, can be significantly improved so as to play the role of structure enhancing to cavity
The bending stiffness and torsion stiffness of automobile, promote the security performance of automobile.
The present invention provides a kind of composition, foams, by the way that foaming agent and graphite are added in epoxy resin solidifying system
Alkene makes composition, foam can be used in the filling and enhancing of cavity structure.The composition, foam has suitable viscosity, makes it
With and operation it is all more convenient.
The present invention also provides a kind of method of cavity structure enhancing and foaming enhancing composite materials, utilize above-mentioned foaming group
Object is closed, the epoxy resin solidifying system using carbon fiber felt-cloth as enhancement layer, with foam structure is finally formd in cavity is
The foaming of skeleton enhances composite material, the filling of automobile cavity is realized, to improve the NVH performance of automobile；Also, it is above-mentioned
Foaming enhancing composite material can also significantly improve the bending stiffness and torsion stiffness of body of a motor car, to realize cavity structure
Enhancing, improve the security performance of automobile.Also, the method and step of cavity structure enhancing is simple, easily operated and implementation.
Detailed description of the invention
Fig. 1 is the flow diagram of the method for cavity structure provided in an embodiment of the present invention enhancing.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment 1
The composition, foam of the present embodiment includes following components:
Bisphenol A-type E44:600g, 3 diethyl aminopropylamine: 40g, NaHCO3: 100g, graphene: 6g, antioxidant 1010:
10g, gamma-aminopropyl-triethoxy-silane: 4g.
Each component is weighed according to above-mentioned quality, after being sufficiently stirred, obtains composition, foam, at 20-30 DEG C
Viscosity is 500-1000Pas.
Embodiment 2
The composition, foam of the present embodiment includes following components:
Bisphenol A-type E51:600g, 3 diethyl aminopropylamine: 50g, NaHCO3: 150g, graphene: 6g, antioxidant 1010:
10g, gamma-aminopropyl-triethoxy-silane: 4g.
Each component is weighed according to above-mentioned quality, after being sufficiently stirred, obtains composition, foam, at 20-30 DEG C
Viscosity is 500-1000Pas.
Embodiment 3
A kind of method of cavity structure enhancing, referring to FIG. 1, including:
Two layers of carbon fiber felt-cloth is arranged in the cavity of certain brand automobile vehicle body；
By the way of Control During Paint Spraying by Robot, by the composition, foam injection cavity in embodiment 1, every cubic metre of cavity is infused
The composition, foam quality entered is 20kg or so；
Above-mentioned cavity is toasted, keeps the temperature 25 minutes or so at being 115 DEG C in temperature, that is, completes the cavity entirety of body of a motor car
Filling obtains foaming enhancing composite material.
By test, according to the method described above after the cavity structure to body of a motor car enhances, the bending of body of a motor car
The NVH performance of the durable correlated performance of the structures such as rigidity, torsion stiffness and automobile has promotion.
Embodiment 4
A kind of method of cavity structure enhancing, as shown in Figure 1, comprising:
Four layers of carbon fiber felt-cloth are arranged in the cavity of certain brand automobile vehicle body；
By the way of Control During Paint Spraying by Robot, by the composition, foam injection cavity in embodiment 2, every cubic metre of cavity is infused
The composition, foam quality entered is 40kg or so；
Above-mentioned cavity is toasted, keeps the temperature 15 minutes or so at being about 145 DEG C in temperature, that is, completes the filling of cavity entirety, obtains
Enhance composite material to foaming.
By test, according to the method described above after the cavity structure to body of a motor car enhances, the bending of body of a motor car
The NVH performance of the durable correlated performance of the structures such as rigidity, torsion stiffness and automobile has promotion.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of composition, foam enhances, which is characterized in that be grouped as by the group of following parts by weight for cavity structure:
60-85 parts of epoxy resin, 5-15 parts of amine curing agent, 5-20 parts of foaming agent, 0.2-2 parts of graphene, antioxidant 0.5-5
Part, 0.2-0.8 parts of silane coupling agent；
Viscosity of the composition, foam at 20-30 DEG C is 500-1000Pas.
2. composition, foam according to claim 1, which is characterized in that the blowing temperature of the composition, foam is 110-
150℃。
3. composition, foam according to claim 1 or 2, which is characterized in that the foaming agent is carbonic acid class foaming agent.
4. composition, foam according to claim 1 or 2, which is characterized in that the parts by weight of the graphene are 0.6-2
Part.
5. a kind of method of cavity structure enhancing characterized by comprising
Carbon fiber felt-cloth is arranged in cavity；
It will be in the described in any item composition, foam injection cavitys of claim 1-4；
Above-mentioned composition, foam is kept the temperature into 10-30min at 110-150 DEG C.
6. according to the method described in claim 5, it is characterized in that, injecting composition, foam 20-40kg in every cubic metre of cavity.
7. method according to claim 5 or 6, which is characterized in that the cavity is the cavity of body of a motor car.
8. a kind of foaming enhances composite material, which is characterized in that be that the described in any item composition, foams of claim 1-4 exist
It is disposed in the cavity of carbon fiber felt-cloth and is obtained by foaming.
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| CN107599447A (en) * | 2017-08-17 | 2018-01-19 | 芜湖博康新材料技术有限公司 | A kind of automobile left front door outside plate and its production technology |
| CN107599441A (en) * | 2017-08-17 | 2018-01-19 | 芜湖博康新材料技术有限公司 | A kind of production technology of automobile rear wall |
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| CN102181091B (en) * | 2011-04-19 | 2013-05-01 | 三友（天津）高分子技术有限公司 | Adhesive and modified EVA (ethylene vinyl acetute) foaming composite for automobiles |
| CN102582547A (en) * | 2012-02-14 | 2012-07-18 | 汪烈生 | Three-dimensional fabric thick-layer air bag armor |
| DE102012205057A1 (en) * | 2012-03-29 | 2013-10-02 | Henkel Ag & Co. Kgaa | Thermally expandable preparations |
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