CN116694250A - Preparation process and product of vehicle-mounted explosion-proof membrane - Google Patents
Preparation process and product of vehicle-mounted explosion-proof membrane Download PDFInfo
- Publication number
- CN116694250A CN116694250A CN202310746897.1A CN202310746897A CN116694250A CN 116694250 A CN116694250 A CN 116694250A CN 202310746897 A CN202310746897 A CN 202310746897A CN 116694250 A CN116694250 A CN 116694250A
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- vehicle
- glue
- film
- explosion
- parts
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- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 239000012528 membrane Substances 0.000 title claims description 36
- 239000003292 glue Substances 0.000 claims abstract description 111
- 239000010410 layer Substances 0.000 claims abstract description 53
- 238000002834 transmittance Methods 0.000 claims abstract description 43
- 239000000758 substrate Substances 0.000 claims abstract description 36
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- 238000000576 coating method Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims abstract description 17
- 239000011247 coating layer Substances 0.000 claims abstract description 15
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 30
- 239000000839 emulsion Substances 0.000 claims description 24
- 239000004814 polyurethane Substances 0.000 claims description 24
- 229920002635 polyurethane Polymers 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 24
- 239000004925 Acrylic resin Substances 0.000 claims description 17
- 229920000178 Acrylic resin Polymers 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 14
- 239000003085 diluting agent Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 239000012948 isocyanate Substances 0.000 claims description 11
- 150000002513 isocyanates Chemical class 0.000 claims description 11
- -1 acrylic ester Chemical class 0.000 claims description 10
- 239000000178 monomer Substances 0.000 claims description 10
- 229910052731 fluorine Inorganic materials 0.000 claims description 9
- 239000011737 fluorine Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 9
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 6
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 claims description 6
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 6
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000004970 Chain extender Substances 0.000 claims description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- 239000003995 emulsifying agent Substances 0.000 claims description 5
- 229920005906 polyester polyol Polymers 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 239000012974 tin catalyst Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 238000004880 explosion Methods 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 229920005862 polyol Polymers 0.000 claims description 4
- 150000003077 polyols Chemical class 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000003490 calendering Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 239000013543 active substance Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001804 emulsifying effect Effects 0.000 claims description 2
- 229920002050 silicone resin Polymers 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 2
- 238000009413 insulation Methods 0.000 abstract description 25
- 238000001723 curing Methods 0.000 abstract description 15
- 230000006750 UV protection Effects 0.000 abstract description 9
- 238000000016 photochemical curing Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 239000004568 cement Substances 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
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- 239000010959 steel Substances 0.000 description 4
- 230000037072 sun protection Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 239000012190 activator Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 239000011858 nanopowder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 description 1
- FIHBHSQYSYVZQE-UHFFFAOYSA-N 6-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound C=CC(=O)OCCCCCCOC(=O)C=C FIHBHSQYSYVZQE-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- JXCHMDATRWUOAP-UHFFFAOYSA-N diisocyanatomethylbenzene Chemical compound O=C=NC(N=C=O)C1=CC=CC=C1 JXCHMDATRWUOAP-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 description 1
- 210000002268 wool Anatomy 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6648—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6651—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
- C08G18/673—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen containing two or more acrylate or alkylacrylate ester groups
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
- C09J133/00—Adhesives 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; Adhesives based on derivatives of such polymers
-
- 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/354—Applications of adhesives in processes or use of adhesives in the form of films or foils for automotive applications
-
- 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
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The application relates to the technical field of vehicle-mounted protective films, in particular to a preparation process and a product of a vehicle-mounted explosion-proof film, comprising the following preparation steps: s1, coating AF glue on the surface of a PET substrate film, and curing to form an AF glue coating layer; s2, pressing a protective film on the surface of the AF glue coating layer to obtain a composite film A; s3, coating OCA glue on one surface of the PET substrate film, which is not coated with AF glue, and photo-curing to obtain a composite film B; s4, attaching a release film on the surface of the OCA glue layer to obtain the vehicle-mounted explosion-proof film, wherein the process is simple and easy to operate, the preparation cost is low, expensive equipment is not needed, and the vehicle-mounted explosion-proof film prepared by the process has good explosion-proof performance, ultraviolet resistance, light transmittance, scratch resistance, strength, fingerprint resistance and heat insulation performance.
Description
Technical Field
The application relates to the technical field of vehicle-mounted protective films, in particular to a preparation process and a product of a vehicle-mounted explosion-proof film.
Background
The vehicle-mounted explosion-proof film is a protective film for a vehicle-mounted screen, and is used for damaging human bodies due to splashing of glass slag after screen breakage. The structure of the vehicle-mounted explosion-proof membrane generally comprises an anti-wear layer, a substrate layer, a heat-insulating layer, an adhesive layer, a UV absorbing layer, a substrate layer, an installation adhesive layer, a release layer and the like in sequence, and the vehicle-mounted explosion-proof membrane has good explosion-proof effect, ultraviolet resistance, sun protection, heat insulation and other effects through a multilayer membrane structure. The more the layer structure and functions are, the more the preparation difficulty is, the higher the technological requirement on preparing the explosion-proof membrane is, and the more the corresponding vehicle-mounted explosion-proof price is. If the heat insulation layer generally adopts a metal film layer, the metal film layer needs to be sputtered on the base material layer by a magnetron sputtering technology, and the magnetron sputtering machine is high in price, so that the production cost of the explosion-proof film is high, and the price of the explosion-proof film is high.
The heat insulation efficiency of the common explosion-proof membrane is greatly reduced without adding a metal heating layer, or other functional layers of the explosion-proof membrane layer are reduced, so that the explosion-proof function, ultraviolet resistance, sun protection and the like of the explosion-proof membrane are reduced. Therefore, an explosion-proof membrane with low cost, low price, explosion-proof effect, ultraviolet resistance, sun protection, heat insulation and the like is needed to be prepared.
Disclosure of Invention
The application provides a preparation process and a product of a vehicle-mounted explosion-proof membrane, which are low in cost and low in price and have good explosion-proof effect, ultraviolet resistance, sun protection, heat insulation and the like.
In a first aspect, the application provides a preparation process of a vehicle-mounted explosion-proof membrane, which adopts the following technical scheme:
the preparation process of the vehicle-mounted explosion-proof membrane comprises the following preparation steps:
s1, coating AF glue on the surface of a PET substrate film, and curing to form an AF glue coating layer;
s2, pressing a protective film on the surface of the AF glue coating layer to obtain a composite film A;
s3, coating OCA glue on one surface of the PET substrate film, which is not coated with AF glue, and thermally curing to obtain a composite film B;
and S4, attaching a release film on the surface of the OCA glue layer to obtain the vehicle-mounted explosion-proof film.
By adopting the technical scheme, the preparation process is simple, the cost is low, and the prepared vehicle-mounted explosion-proof film has good explosion-proof performance, ultraviolet resistance, light transmittance, scratch resistance, strength, fingerprint resistance and heat insulation performance. The preparation engineering of the application basically adopts a combination of a coating mode and a pressing mode, does not need to use expensive processing instruments, is beneficial to reducing the production cost, and can effectively prevent broken glass from splashing. The OCA glue effectively prevents penetration injury of ultraviolet rays, has heat insulation and heat dissipation functions, prolongs the effective viscosity life of an OCA glue layer, and greatly improves and ensures the performance and the service life of the vehicle-mounted explosion-proof membrane. The AF glue coating layer is favorable for improving the explosion-proof performance, the heat insulation performance, the light transmittance, the scratch resistance, the strength and the fingerprint resistance of the vehicle-mounted explosion-proof membrane. Meanwhile, the OCA glue layer and the AF glue layer are connected through the PET substrate layer, so that the toughness of the vehicle-mounted explosion-proof film can be improved, and the possibility of glass breaking and splashing is reduced.
The vehicle-mounted explosion-proof film on the current market is about 150 yuan/m 2 . In contrast, the application does not adopt the preparation of a metal film layer or a ceramic film layer, but adopts the OCA glue, the PET substrate film and the AF glue to prepare the vehicle-mounted explosion-proof film, so that the cost can be reduced to 100 yuan/m 2 。
Preferably, in step S2, the composite film a and the protective film are bonded by pressing, the heat roller gap of the pressing process is 5-15um, the calendaring temperature is 200-250 ℃, and the pressing pressure is 10-15MPa.
By adopting the technical scheme, the lamination process parameters are used for controlling lamination of the composite film A and the protective film, firstly, the adhesion fastness of the composite film A and the protective film is improved, and the separation phenomenon of the vehicle-mounted explosion-proof film in the use process is prevented; secondly, the deformation phenomenon of the AF glue coating layer in the pressing process is prevented. The temperature is lower than 200 ℃, the pressure is lower than 10MPa, and the AF adhesive layer and the protective film are easily unstable in adhesion; the temperature is higher than 250 ℃, the pressure is higher than 15MPa, and the AF adhesive layer is easy to soften, deform and the like.
Preferably, the AF coating is prepared from AF glue, wherein the AF glue comprises the following raw materials in parts by weight:
30-40% of fluorine-containing acrylic resin
10-20% of polyurethane emulsion
3-5% of fluorocarbon active agent
25-28% of acrylic ester monomer diluent
1-2% of photoinitiator
10 to 15 percent of polyvinyl alcohol
3-8% of nano metal powder.
By adopting the technical scheme, the AF glue is low in cost and convenient to coat, and is used for preparing the vehicle-mounted explosion-proof film, so that the vehicle-mounted explosion-proof film has good fingerprint resistance, heat insulation performance, light transmission performance, ageing resistance, strength, scratch resistance and the like. Most of the vehicle-mounted explosion-proof films have soft hand feeling, poor hardness and toughness and are uncomfortable to use for a long time. The fluorine-containing acrylic resin and the polyurethane emulsion are adopted to share the application, so that the hardness and toughness of the AF coating layer and the bonding firmness of the AF coating layer and the PET substrate film layer can be improved, and the shrinkage change rate after curing is low, so that the service life of the vehicle-mounted protective film is prolonged. Meanwhile, the fluorine-containing acrylic resin, the fluorocarbon activator and the polyurethane emulsion are matched with each other for use, so that the contact angle between the surface of the AF glue coating layer and dirt such as greasy dirt, sweat and the like is greatly improved, the excellent antifouling fingerprint-proof effect is achieved, the AF glue can be rapidly solidified into a film, the working efficiency is improved, and the processing period is greatly shortened. In addition, the nano metal powder is added in the application, so that the infrared rays in the solar rays can be efficiently reflected and blocked, and the heat insulation performance of the AF coating is further improved.
Preferably, the polyurethane emulsion is prepared by the following method:
1) Mixing isocyanate with alcohol and tin catalyst, and reacting at 50-80 ℃ for 1-2h to obtain isocyanate prepolymer;
2) Dehydrating polyester polyol, vinyl trimethoxy silane monomer and a chain extender, adding isocyanate prepolymer at 80-100 ℃, cooling to 60-70 ℃, reacting for 1-3h, adding hydroxyethyl acrylate, pentaerythritol triacrylate and a catalyst, reacting for 2-3h, reducing the reaction temperature to 30-40 ℃ when the theoretical value of NCO is approached, dropwise adding amine compounds for reacting for 1-2h, adding a diluent, and mixing to obtain a mixture;
3) Mixing the emulsifier with water, adding the mixture, emulsifying at high speed for 10-20min, and distilling under reduced pressure until the diluent is completely removed to obtain polyurethane emulsion.
By adopting the technical scheme, the prepared polyurethane emulsion is used for preparing the AF glue, so that the curing time of the AF glue can be shortened, and the friction resistance, hardness, light transmittance, toughness and bonding performance of the AF glue after curing can be improved. Vinyl trimethoxy silane monomer is introduced into the polyurethane emulsion, so that the crosslinking density of AF glue can be improved, the shrinkage rate is reduced, and the wear resistance and the light transmittance of the AF coating are improved. Hydroxyethyl acrylate and pentaerythritol triacrylate are also introduced into the polyurethane emulsion, so that the hardness and the wear resistance of the AF coating are further improved.
Preferably, the polyurethane emulsion is prepared from the following raw materials in parts by weight:
35-40 parts of isocyanate
60-80 parts of polyol
Tin catalyst 1-2 parts
25-35 parts of polyester polyol
Vinyl trimethoxy silane monomer 5-10 parts
3-5 parts of chain extender
5-10 parts of hydroxyethyl acrylate
10-20 parts of pentaerythritol triacrylate
1-2 parts of catalyst
5-10 parts of amine compound
30-40 parts of diluent
3-8 parts of emulsifying agent
20-30 parts of water.
By adopting the technical scheme, parameters for preparing the AF glue are optimized, the curing time of the AF glue can be further shortened, and the friction resistance, hardness, light transmittance, toughness and bonding performance of the AF glue after curing are improved.
Preferably, the OCA glue includes one of epoxy resin type OCA glue, acrylic resin type OCA glue and silicone resin type OCA glue.
The light transmittance of the epoxy resin type OCA glue is not less than 95%, and the viscosity is 15-55Pa.s at 25 ℃.
The light transmittance of the acrylic resin type OCA glue is not less than 95%, and the viscosity is 900-3000MPa.s at 25 ℃.
The light transmittance of the organic silicon resin type OCA glue is not less than 95%, and the viscosity is 14000-18000MPa.s at 25 ℃.
Through adopting above-mentioned technical scheme, adhesive property is good, the light transmissivity is high and the wearability for preparing on-vehicle rupture membrane, can guarantee the stability of on-vehicle rupture membrane and bonding of glass.
Preferably, the 0CA optical cement further comprises 1-5% of nano metal powder by weight percent.
Through adopting above-mentioned technical scheme, the nanometer metal powder of adding can improve the efficiency of OCA glue layer reflection and separation infrared ray and ultraviolet ray in the solar ray, cooperates AF glue coating reflection and separation infrared ray in the solar ray simultaneously, further improves the thermal-insulated performance of on-vehicle explosion-proof membrane. By adding the nano metal powder in the weight, the bonding strength of the vehicle-mounted explosion-proof membrane is not affected when the thermal barrier property of the vehicle-mounted explosion-proof membrane is improved.
Preferably, the 0CA optical adhesive also contains 1-2% of silane coupling agent by weight percent.
Mixing 0CA optical cement and nano metal powder at 5000-6000r/min.
Preferably, the average particle size of the nano metal powder is 1-20nm.
Through adopting above-mentioned technical scheme, improve the thermal-insulated performance of AF rubberizing layer and OCA glue layer, and it is little to on-vehicle rupture membrane other performance influence. The average grain diameter of the nano metal powder is larger than 20nm, so that the ultraviolet resistance, the light transmittance and the fingerprint resistance of the vehicle-mounted explosion-proof film are easily affected; if the particle size of the nano metal powder is less than 1nm, the nano metal powder is easy to form a cluster during stirring, which is unfavorable for coating of 0CA optical cement.
Preferably, the transmittance of the PET substrate is not lower than 95%, the haze is 0.7-0.9, the tensile strength is 70-150MPa, and the elongation at break is 150-200%.
Through adopting above-mentioned technical scheme, optimize the parameter of PET substrate membrane for the light transmissivity of PET substrate membrane is good, intensity is high, repairability is strong and prevent scraping the performance good, and the thermal shrinkage rate is little moreover, can not shrink the fold because of being heated when using, further improves on-vehicle complex film's light transmissivity, intensity, prevents scraping performance and roughness improvement.
In a second aspect, the application provides a vehicle-mounted explosion-proof membrane, which adopts the following technical scheme:
the vehicle-mounted anti-explosion film comprises a protective layer, an AF coating, a PET substrate layer, an OCA glue layer and a release layer in sequence, wherein the thickness of the AF coating is 1-10um, the thickness of the PET substrate layer is 50-150um, and the thickness of the OCA glue layer is 20-30um;
the vehicle-mounted protective film is prepared by the preparation process of the first aspect.
By adopting the technical scheme, the vehicle-mounted explosion-proof film is thin in thickness, and has good explosion-proof performance, ultraviolet resistance, light transmittance, scratch resistance, strength, fingerprint resistance and heat insulation performance.
In summary, the application has the following beneficial effects:
1. according to the application, the AF glue is coated on the surface of the PET substrate film, the AF glue layer is formed by curing, the protective film is stuck on the surface of the AF glue layer, the OCA glue is coated on the other surface of the PET substrate layer, and the release film is stuck.
2. The AF glue is prepared from fluorine-containing acrylic resin, polyurethane emulsion, fluorocarbon activator, acrylic ester monomer diluent, photoinitiator, polyvinyl alcohol and nano metal powder, so that the AF glue can be used for preparing the vehicle-mounted explosion-proof film, and the fingerprint resistance, heat insulation performance, light transmittance, ageing resistance, strength, scratch resistance and the like of the vehicle-mounted explosion-proof film can be improved.
3. The AF glue is prepared by using the polyurethane emulsion prepared by the specific method and the formula, so that the curing time of the AF glue can be further shortened, and the friction resistance, hardness, light transmittance, toughness and bonding performance of the AF glue after curing are improved, thereby improving the explosion-proof performance, light transmittance, scratch resistance, hardness and the like of the vehicle-mounted explosion-proof membrane.
Detailed Description
Examples
Example 1
The utility model provides a on-vehicle rupture membrane, on-vehicle protection film includes protective layer, AF coating, PET substrate layer, OCA glue layer and from the type layer in proper order, and wherein, the thickness of AF coating is 5um, and the thickness of PET substrate layer is 100um, and the thickness of OCA glue layer is 25um.
The vehicle-mounted explosion-proof membrane is prepared by the following method:
s1, coating AF glue on the surface of a PET substrate film, and curing to form an AF glue coating layer;
s2, pressing a protective film on the surface of the AF glue coating layer, wherein the gap between hot rolls in the pressing process is 5um, the rolling temperature is 200 ℃, and the pressing pressure is 10MPa, so as to obtain a composite film A;
s3, coating OCA glue on one surface of the PET substrate film, which is not coated with AF glue, and thermally curing to obtain a composite film B;
and S4, attaching a release film on the surface of the OCA glue layer to obtain the vehicle-mounted explosion-proof film.
The AF glue is fluorine-containing acrylic resin with the solid content of 75 weight percent, the viscosity of 2500 Pa.s and the number average molecular weight of 1500.
The OCA glue is epoxy resin type OCA glue with the light transmittance of 97% and the viscosity of 55Pa.s at 25 ℃.
The PET base film P had a light transmittance of 95%, a haze of 0.7, a tensile strength of 70MPa and an elongation at break of 150%.
Example 2
The difference between the vehicle-mounted explosion-proof film and the embodiment 1 is that the AF glue is prepared by the following method: 100.00g of polyvinyl alcohol, 300.00g of fluorine-containing acrylic resin and 80.00g of nano metal powder are stirred uniformly at a high speed, 250.00g of acrylic ester monomer diluent (1, 6-hexanediol diacrylate) is added, stirring is carried out, 200.00g of polyurethane emulsion, 50.00g of fluorocarbon activator and 20.00g of photoinitiator (2-hydroxy-2-methyl-1-phenyl-1-acetone) are added, and stirring is carried out uniformly, thus obtaining the AF glue.
The molecular weight of the polyvinyl alcohol was 500.
The fluorine-containing acrylic resin had a solids content of 75% by weight, a viscosity of 2500 Pa.s and a number average molecular weight of 1500.
The polyurethane emulsion can be cured by ultraviolet light, has a solid content of 25wt%, a viscosity of 200mPa.s at 25 ℃, a molecular weight of 10000 and a pH of 8.
Fluorocarbon actives are purchased from Shanghai, lishi network technologies Inc. under the model Capstone FS-30.
The average particle size of the nano metal powder is 1nm.
Example 3
The difference between the vehicle-mounted explosion-proof film and the embodiment 1 is that the types and the amounts of raw materials for preparing AF glue are different, and the specific differences are shown in Table 1:
TABLE 1 types and amounts of raw materials for AF glue in examples 2-3
Example 4
The difference between the vehicle-mounted explosion-proof film and the embodiment 2 is that the polyurethane emulsion in the AF glue is prepared by the following method:
1) 350.00g of isocyanate (phenyl methane diisocyanate), 600.00g of polyol (glycerol) and 10.00g of tin catalyst (stannous octoate) are mixed, and reacted for 1h at 50 ℃ to obtain isocyanate prepolymer;
2) 250.00g of polyester polyol, 50.00g of vinyl trimethoxy silane monomer and 30.00g of chain extender (dimethylolpropionic acid), dehydrating, adding isocyanate prepolymer at the temperature of 80 ℃, cooling to 60 ℃, reacting for 1h, adding 50.00g of hydroxyethyl acrylate, 100.00g of pentaerythritol triacrylate and 10.00g of catalyst (dibutyltin dilaurate), reacting for 2h, reducing the reaction temperature to 30 ℃ when the NCO theoretical value is approached, dropwise adding 50.00g of amine compound (triethylamine), reacting for 1h, adding 300.00g of diluent (acetone), and mixing to obtain a mixture;
3) 30.00g of emulsifier (sodium dodecyl sulfate) and 200.00g of water are mixed, and then the mixture is added for high-speed shearing and emulsification for 10min, and reduced pressure distillation is carried out until the diluent is completely removed, thus obtaining the polyurethane emulsion.
Examples 5-6 differ from example 4 in the type, amount and experimental parameters of the polyurethane emulsion part raw materials used in preparing the AF glue, and the specific differences are shown in table 2:
table 2 examples 4-6 types, amounts and experimental parameters of polyurethane emulsion raw materials in preparing AF glue
Example 7
The difference between this embodiment and embodiment 1 is that: in step S2, the gap between the hot rolls of the lamination process is 15um, the calendaring temperature is 250 ℃, the lamination pressure is 15MPa, and the rest of experimental raw materials, the dosage, parameters and the experimental steps are the same as those of example 1.
Example 8
The difference between this embodiment and embodiment 1 is that: the 0CA optical cement also contains 1 weight percent of nano metal powder, and the rest experimental raw materials, the dosage, parameters and experimental steps are the same as those of the example 1.
And (3) uniformly stirring and mixing the 0CA glue and the nano metal powder at a high speed of 5000r/min.
The OCA glue is acrylic resin type OCA glue with light transmittance of 98% and viscosity of 3000 Pa.s at 25 ℃.
Example 9
The difference between this embodiment and embodiment 2 is that: the 0CA optical cement contains 3 weight percent of nano metal powder, and the rest experimental raw materials, the dosage, parameters and the experimental steps are the same as those of the example 2.
And (3) uniformly stirring and mixing the 0CA glue and the nano metal powder at a high speed of 5000r/min.
The OCA glue is organic silicon resin type OCA glue with light transmittance of 97% and viscosity of 14000mPa.s at 25 ℃.
Example 10
The difference between this embodiment and embodiment 4 is that: the 0CA optical cement contains 5 weight percent of nano metal powder, and the rest experimental raw materials, the dosage, parameters and experimental steps are the same as those of the example 4.
And (3) uniformly stirring and mixing the OCA glue with the nano metal powder and the silane coupling agent at a high speed to obtain the OCA glue, and uniformly stirring and mixing the 0CA glue with the nano metal powder at a high speed, wherein the stirring speed is 5000r/min.
The OCA glue is organic silicon resin type OCA glue with light transmittance of 97% and viscosity of 14000mPa.s at 25 ℃.
Example 11
The difference between this embodiment and embodiment 1 is that: the AF coating had a thickness of 1um, the PET substrate layer had a thickness of 50um, the OCA glue layer had a thickness of 20um, and the remaining experimental procedures were consistent with example 1.
Example 12
The difference between this embodiment and embodiment 1 is that: the AF coating had a thickness of 10um, the PET substrate layer had a thickness of 150um, the OCA glue layer had a thickness of 30um, and the remaining experimental steps were consistent with example 1.
Example 13
The difference between this embodiment and embodiment 1 is that: the PET substrate had a light transmittance of 98%, a haze of 0.9, a tensile strength of 150MPa, an elongation at break of 200% and the rest of the experimental procedures were identical to those of example 1.
Example 14
The difference between this embodiment and embodiment 2 is that: the PET substrate had a light transmittance of 98%, a haze of 0.9, a tensile strength of 150MPa, an elongation at break of 200% and the rest of the experimental procedures were identical to example 2.
Example 15
The difference between this embodiment and embodiment 4 is that: the PET substrate had a light transmittance of 98%, a haze of 0.9, a tensile strength of 150MPa, an elongation at break of 200% and the rest of the experimental procedures were identical to those of example 4.
Example 16
The difference between this embodiment and embodiment 1 is that: the UV acrylic resin was used instead of polyurethane emulsion and the rest of the experimental raw materials, amounts, parameters and test steps were identical to example 1.
The UV acrylic resin had a solids content of 25% by weight, a viscosity of 800mPa.s at 25℃and a molecular weight of 5000.
Example 17
The difference between this embodiment and embodiment 1 is that: the UV acrylic resin was used instead of the fluorine-containing acrylic resin, and the rest of the experimental raw materials, the amounts, the parameters and the experimental procedure were the same as in example 1.
The UV acrylic resin had a solids content of 25% by weight, a viscosity of 800mPa.s at 25℃and a molecular weight of 5000.
Comparative example
Comparative example 1
The vehicle-mounted rupture disk is different from example 1 in the preparation steps, and the specific preparation steps of the comparative example are as follows:
s1, coating AF glue on the surface of a PET substrate film, and curing by an ultraviolet lamp to form an AF glue coating layer;
s2, coating OCA glue on the surface of the AF glue coating layer, curing, and pressing a layer of protective film on the surface of the OCA glue layer, wherein the hot roller gap of the pressing process is 5um, the rolling temperature is 200 ℃, and the pressing pressure is 10MPa, so as to obtain a composite film A;
and S4, attaching a release film on the surface of the OCA glue layer to obtain the vehicle-mounted explosion-proof film.
Performance test
The vehicle-mounted explosion-proof films prepared in examples 1 to 16 and comparative example 1 were tested for explosion-proof performance, pencil hardness, water contact angle, light transmittance, haze, abrasion resistance, steel sheet peeling force, and heat insulation performance.
Detection method/test method explosion-proof performance: the vehicle-mounted anti-explosion films prepared in the examples 1-11 and the comparative example 1 are respectively attached to the surfaces of glass, 200g of each glass is 50cm in length, 50cm in width and 2mm in thickness, the shapes and the thicknesses of the glass are consistent, the weight difference is not more than 2g, two support rods are placed on the horizontal ground in parallel, the glass attached with the vehicle-mounted protection film is horizontally placed on the two support rods, the vehicle-mounted anti-explosion film faces upwards, a weight of 1KG is used, the glass vertically drops downwards from the position with the height of 1.5m, and the weight of splash glass is counted.
Pencil hardness: reference is made to GB6739-86.
Water contact angle: referring to GB/T30047-2013, the smaller the contact angle is, the better the wettability is, the smaller the contact angle is, the smaller the hydrophobicity is, and the hydrophilicity is strong.
Transmittance: reference is made to ASTM1003.
Haze: reference is made to ASTM1003.
Abrasion resistance: tearing off the protective film, rubbing the AF adhesive layer for 1000 times by using 500g of #0000# steel wool, and observing whether a friction trace exists or not, namely a scratch exists.
Peel force to steel plate: reference is made to astm d3330.
Thermal insulation performance test: the transmittance of ultraviolet light, infrared light and visible light is obtained through testing by adopting an optical transmittance meter, the testing is carried out by referring to a GB/T2680 method, and the heat insulation calculation formula is as follows:
heat insulation rate=infrared blocking rate 53% + ultraviolet blocking rate 3% + visible blocking rate 44%
The test data are shown in table 3:
TABLE 3 Performance test data
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From examples 1 to 16 and comparative example 1 in combination with the present application, it is understood that the vehicle-mounted explosion-proof film prepared by the preparation process of the present application has the advantages of simple preparation process and low preparation cost, and the prepared vehicle-mounted explosion-proof film has good explosion-proof performance, ultraviolet resistance, light transmittance, scratch resistance, strength, fingerprint resistance and heat insulation performance.
Compared with example 1 and comparative example 1, the glass with explosion-proof performance detection drop in comparative example 1 is more than that in example 1, and the values of hardness, water resistance, light transmittance, friction resistance, peeling force to a steel plate and heat insulation performance are smaller than those in example 1, which shows that the explosion-proof performance, hardness and heat insulation performance in example 2 are higher than those in example 2 by comparing example 1 with example 2 by adopting the preparation process in the application, which shows that the AF glue prepared in the application is beneficial to preparing an AF glue layer, and the explosion-proof performance, hardness, light transmittance and heat insulation performance of the vehicle-mounted explosion-proof film can be improved.
Compared with example 3, the explosion-proof performance, hardness, light transmittance and heat insulation performance of example 3 are improved, and the polyurethane emulsion prepared by using the application is used for preparing AF glue and then used for preparing the vehicle-mounted explosion-proof film, so that the explosion-proof performance, hardness, light transmittance and heat insulation performance of the vehicle-mounted explosion-proof film can be further improved.
By comparing examples 1 and 8, examples 2 and 9, and examples 4 and 10, the heat insulation performance of examples 8, 9 and 10 is improved, which means that the addition of an appropriate amount of nano metal powder to OCA glue is helpful to improve the heat insulation performance of the vehicle-mounted explosion-proof membrane.
In example 1 and example 8, the transmittance of the PET substrate is 95% and the transmittance of example 8 is 90%, which indicates that the transmittance of the vehicle-mounted explosion-proof film is reduced when the AF glue is added with the metal nano powder; example 1 compared to example 13, the PET substrate had a transmittance of 95% to the touch and the transmittance of 93% for example 13; example 1 compared to example 14, the PET substrate had a light transmittance of 98% and example 14 had a light transmittance of 95%; compared with example 15, the transmittance of the PET substrate is 98% and the transmittance of example 13 is 98%, which shows that the polyurethane emulsion prepared by the application is used for preparing AF glue and then used for preparing the vehicle-mounted explosion-proof film, and the influence of the AF glue added with metal nano powder on the transmittance of the vehicle-mounted explosion-proof film can be further reduced.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (10)
1. The preparation process of the vehicle-mounted explosion-proof membrane is characterized by comprising the following preparation steps of:
s1, coating AF glue on the surface of a PET substrate film, and curing to form an AF glue coating layer;
s2, pressing a protective film on the surface of the AF glue coating layer to obtain a composite film A;
s3, coating OCA glue on one surface of the PET substrate film, which is not coated with AF glue, and thermally curing to obtain a composite film B;
and S4, attaching a release film on the surface of the OCA glue layer to obtain the vehicle-mounted explosion-proof film.
2. The process for preparing the vehicle-mounted explosion-proof membrane according to claim 1, which is characterized in that: in the step S2, the gap between the hot rolls of the laminating process is 5-15um, the calendering temperature is 200-250 ℃, and the laminating pressure is 10-15MPa.
3. The preparation process of the vehicle-mounted explosion-proof film according to claim 1, wherein the AF coating is formed by coating AF glue on the surface of a PET substrate film, and the AF glue is prepared from the following raw materials in parts by weight:
30-40% of fluorine-containing acrylic resin
10-20% of polyurethane emulsion
3-5% of fluorocarbon active agent
25-28% of acrylic ester monomer diluent
1-2% of photoinitiator
10 to 15 percent of polyvinyl alcohol
3-8% of nano metal powder.
4. The process for preparing the vehicle-mounted explosion-proof membrane according to claim 3, wherein the polyurethane emulsion is prepared by the following method:
1) Mixing isocyanate, polyol and tin catalyst, and reacting at 50-80 ℃ for 1-2h to obtain isocyanate prepolymer;
2) Dehydrating polyester polyol, vinyl trimethoxy silane monomer and a chain extender, adding isocyanate prepolymer at 80-100 ℃, cooling to 60-70 ℃, reacting for 1-3h, adding hydroxyethyl acrylate, pentaerythritol triacrylate and a catalyst, reacting for 2-3h, reducing the reaction temperature to 30-40 ℃ when the theoretical value of NCO is approached, dropwise adding amine compounds for reacting for 1-2h, adding a diluent, and mixing to obtain a mixture;
3) Mixing the emulsifier with water, adding the mixture, emulsifying at high speed for 10-20min, and distilling under reduced pressure until the diluent is completely removed to obtain polyurethane emulsion.
5. The process for preparing the vehicle-mounted explosion-proof membrane according to claim 4, which is characterized in that: the polyurethane emulsion is prepared from the following raw materials in parts by weight:
35-40 parts of isocyanate
60-80 parts of polyol
Tin catalyst 1-2 parts
25-35 parts of polyester polyol
Vinyl trimethoxy silane monomer 5-10 parts
3-5 parts of chain extender
5-10 parts of hydroxyethyl acrylate
10-20 parts of pentaerythritol triacrylate
1-2 parts of catalyst
5-10 parts of amine compound
30-40 parts of diluent
3-8 parts of emulsifying agent
20-30 parts of water.
6. The process for preparing the vehicle-mounted explosion-proof membrane according to claim 1, which is characterized in that: the OCA glue includes one of epoxy resin type OCA glue, acrylic resin type OCA glue and silicone resin type OCA glue.
7. The process for preparing the vehicle-mounted explosion-proof membrane according to claim 6, wherein the process comprises the following steps of: the 0CA optical adhesive also contains 1-5% of nano metal powder by weight percent.
8. The process for preparing the vehicle-mounted explosion-proof membrane according to any one of claims 2 or 7, which is characterized in that: the average grain diameter of the nano metal powder is 1-20nm.
9. The process for preparing the vehicle-mounted explosion-proof membrane according to claim 1, which is characterized in that: the light transmittance of the PET substrate is not lower than 95%, the haze is 0.7-0.9, the tensile strength is 70-150MPa, and the elongation at break is 150-200%.
10. The vehicle-mounted anti-explosion film is characterized by sequentially comprising a protective layer, an AF coating, a PET substrate layer, an OCA glue layer and a release layer, wherein the thickness of the AF coating is 1-10um, the thickness of the PET substrate layer is 50-150um, and the thickness of the OCA glue layer is 20-30um;
the vehicle-mounted protective film is prepared by the preparation process of any one of claims 1-9.
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