CN116218394A - Textured paint protective film and preparation method thereof - Google Patents
Textured paint protective film and preparation method thereof Download PDFInfo
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- CN116218394A CN116218394A CN202310003690.5A CN202310003690A CN116218394A CN 116218394 A CN116218394 A CN 116218394A CN 202310003690 A CN202310003690 A CN 202310003690A CN 116218394 A CN116218394 A CN 116218394A
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- film
- acrylic resin
- modified acrylic
- grains
- thermoplastic polyurethane
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- 239000003973 paint Substances 0.000 title claims abstract description 27
- 230000001681 protective effect Effects 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 39
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 39
- 229920001971 elastomer Polymers 0.000 claims abstract description 39
- 239000000806 elastomer Substances 0.000 claims abstract description 39
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims abstract description 34
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims abstract description 34
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 239000010410 layer Substances 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 239000012790 adhesive layer Substances 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 12
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 description 15
- 238000001723 curing Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 9
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 238000003475 lamination Methods 0.000 description 5
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 description 4
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 4
- 235000019400 benzoyl peroxide Nutrition 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- OWUTVCVPEOXXHD-UHFFFAOYSA-N trimethoxy(prop-1-enyl)silane Chemical compound CO[Si](OC)(OC)C=CC OWUTVCVPEOXXHD-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 206010004194 Bed bug infestation Diseases 0.000 description 1
- 241001414835 Cimicidae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
-
- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
-
- 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
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
-
- 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
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
-
- 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
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2433/10—Homopolymers or copolymers of methacrylic acid esters
- C08J2433/12—Homopolymers or copolymers of methyl methacrylate
-
- 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
- C09J2203/306—Applications of adhesives in processes or use of adhesives in the form of films or foils for protecting painted surfaces, e.g. of cars
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
-
- 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
- C09J2475/00—Presence of polyurethane
- C09J2475/006—Presence of polyurethane in the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention discloses a preparation method of a textured paint protective film, which is characterized by comprising the following steps: coating acrylic pressure-sensitive adhesive on the first release film, forming a first adhesive layer on the surface of the first release film, and then attaching a thermoplastic polyurethane elastomer substrate; coating an organosilicon modified acrylic resin solution on the surface of the thermoplastic polyurethane elastomer substrate, and then performing first heat treatment to form an organosilicon modified acrylic resin layer on the surface of the thermoplastic polyurethane elastomer substrate; attaching a UV transfer film with grains to the surface of the organosilicon modified acrylic resin layer; after the second heat treatment, stripping the UV transfer film with grains, and forming grains on the surface of the organosilicon modified acrylic resin layer to obtain a paint surface protection film with grains; the invention further discloses the protective film prepared according to the scheme.
Description
Technical Field
The invention relates to the field of paint protective films.
Background
The paint protection film is a film stuck on the surface of the automobile, can prevent sand, bed bugs and the like on the road from damaging the paint of the automobile during driving, plays a role in protecting the paint of the automobile, and has an attractive effect.
In order to be more attractive and meet the aesthetic requirements of different people, lines are printed on some paint protection films. However, it is difficult to print and retain the texture on the surface of the elastomer, and in order to solve the problem, as disclosed in patent document CN112251161B, a patterned elastomer protective film and a method for producing the same are disclosed, which form a concave patterned surface layer by hot-pressing a patterned film with an elastomer base film; secondly, coating a photo-curing coating composition and a photoinitiator on the other side surface of the elastomer base film with the concave pattern surface layer, and irradiating with ultraviolet light at room temperature; finally, coating back adhesive on the surface layer with concave patterns, and baking and curing at 70-80 ℃ to obtain the elastomer protective film with the patterns. The film with the patterns is directly attached to the elastic body base film, so that the film with the patterns and the elastic body base film are different in materials, and the problems that the film with the patterns is not attractive and the patterns is easy to fall off exist.
Disclosure of Invention
The invention aims at solving the problems in the prior art and discloses a preparation method of a textured paint protective film, which comprises the following steps:
coating acrylic pressure-sensitive adhesive on the first release film, forming a first adhesive layer on the surface of the first release film, and then attaching a thermoplastic polyurethane elastomer substrate; coating an organosilicon modified acrylic resin solution on the surface of the thermoplastic polyurethane elastomer substrate, and then performing first heat treatment to form an organosilicon modified acrylic resin layer on the surface of the thermoplastic polyurethane elastomer substrate; attaching a UV transfer film with grains to the surface of the organosilicon modified acrylic resin layer; after the second heat treatment, stripping the UV transfer film with grains, and forming grains on the surface of the organosilicon modified acrylic resin layer to obtain a paint surface protection film with grains; and (3) carrying out third heat treatment on the paint surface protective film with the grains, and curing the fixed grains.
In the improved scheme, the lamination method of the UV transfer film with the texture laminated on the surface of the organosilicon modified acrylic resin layer adopts a hot lamination roller mode, and the temperature is at least 50 ℃ and the pressure is at least 0.5MP.
The surface of the thermoplastic polyurethane elastomer substrate is coated with the organosilicon modified acrylic resin solution and then subjected to first heat treatment, and the temperature is a very critical factor in the first heat treatment, so that the organosilicon modified acrylic resin solution can not be attached to the thermoplastic polyurethane elastomer substrate due to the fact that the organosilicon modified acrylic resin solution is dried due to the fact that the temperature is too high, and the UV transfer film is delaminated; the temperature is too low to enable the organosilicon modified acrylic resin solution to be dried to an optimal state, and the organosilicon modified acrylic resin solution is attached to the thermoplastic polyurethane elastomer base material, so that the UV transfer film is adhered and cannot be peeled off, and therefore the organosilicon modified acrylic resin solution coated on the thermoplastic polyurethane elastomer base material cannot be extruded out of the corresponding lines due to the too high or too low temperature. In a preferred embodiment, the first heat treatment is a drying at 80-90 ℃ for 2-5 minutes.
The problem that excessive drying and insufficient drying are easy to occur when the traditional organosilicon modified acrylic resin solution is dried, so that clear lines cannot be formed, a drying window is narrow, and processing is easy to occur, therefore, in a preferred embodiment, the invention discloses an organosilicon modified acrylic resin solution with a larger drying window temperature, and the preparation method comprises the following steps:
mixing 5-15 parts of vinyl trimethoxy silane, 5-15 parts of vinyl triethoxy silane, 5-15 parts of propenyl trimethoxy silane, 5-15 parts of methacryloxypropyl trimethoxy silane, 4-5 parts of water, 1-5 parts of dibenzoyl peroxide, 0.1-2 parts of chloroplatinic acid and 10-50 parts of methyl methacrylate under stirring to form a first mixture; dissolving 0.1-1 part of dibenzoyl peroxide in 1-5 parts of propylene glycol butyl ether to form a second mixture; adding 20-40 parts of propylene glycol butyl ether into a reaction kettle, heating to 75-95 ℃, slowly adding half of the first composition into the reaction kettle (adding the mixture in 1 hour), stirring and reacting for half an hour, adding the rest of the first composition (after 2 hours of dripping, mixing the rest of the first mixture with the second mixture), and reacting for 1-10 hours after dripping, thus obtaining the organosilicon modified propylene resin.
The lamination temperature and pressure control of the organosilicon modified acrylic resin solution coated on the thermoplastic polyurethane elastomer substrate and the UV transfer film are also critical, the thermoplastic polyurethane elastomer substrate is not clear in texture due to the fact that the temperature is too high or too low and the pressure is too high or too low, the temperature and the pressure are also related, in the improved scheme of the invention, the temperature is controlled at 50 ℃ and the pressure is controlled at 0.5MP, and the corresponding texture effect is relatively good.
In a modified version, the second heat treatment is: the curing chamber is placed for curing for 72 hours at 50 ℃, and the repairability is good after curing is finished.
In a modified version, the third heat treatment is: curing at 50 ℃ for at least 72 hours,
the invention also discloses a paint surface protective film with lines, which comprises the following components:
a first release film;
the first adhesive layer applied on the first release film is preferably formed of an acrylic pressure sensitive adhesive.
A thermoplastic polyurethane elastomer substrate applied over the first adhesive layer;
a silicone modified acrylic resin layer applied to the thermoplastic polyurethane elastomer substrate;
the thermoplastic polyurethane elastomer base material and the organosilicon modified acrylic resin layer are provided with set lines.
The invention also discloses a paint protective film, which comprises:
the first release film is preferably a matte release film having a thickness of 80-92 microns.
A first adhesive layer applied to the first release film, preferably, the first adhesive layer is formed of an acrylic pressure sensitive adhesive, preferably having a thickness of 20 microns;
a thermoplastic polyurethane elastomer substrate applied to the first adhesive layer, preferably 150 microns thick;
a silicone modified acrylic resin layer applied to the thermoplastic polyurethane elastomer substrate, preferably 9 microns thick;
a UV transfer film applied on the silicone-modified acrylic resin layer, preferably having a thickness of 75 to 125 μm; the UV transfer film is provided with grains in advance, and after the UV transfer film is stripped, grains can be formed on the thermoplastic polyurethane elastomer base material and the organosilicon modified acrylic resin layer.
The surface texture prepared in the preferred scheme of the embodiment of the invention has good adhesion with the organosilicon modified acrylic resin solution, is not easy to fall off, and has a hundred-cell test of 5B; the scratch resistance is good, and no scratch exists when the No. 0 steel wire is loaded with 2kg and rubbed back and forth for more than 1000 times; the protective film has excellent self-repairing performance, elongation at break up to 190%, excellent gloss and good stain resistance; the corrosion resistance is good, the sampling film is posted on a black small machine cover, a marking oil agent is dripped into the sampling film for 120s to swell and not be dumb, and cracks or local corrosion are not observed on the surface texture of the coating; meanwhile, the UV transfer film can be recovered after being stripped and then attached for use.
Drawings
FIG. 1 is a schematic view of a protective film with a transfer film
FIG. 2 is a schematic illustration of a thermal bonding process;
the marks in the figure: the adhesive comprises a 1-matte release film, a 2-first adhesive layer, a 3-thermoplastic polyurethane elastomer substrate, a 4-organosilicon modified acrylic resin layer, a 5-UV transfer film, a 6-hot roller, a 7-UV transfer film before lamination and a protective film before 8-lamination.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
1. And (3) preparation of a protective film.
Coating an acrylic acid pressure-sensitive adhesive on a matte release film to attach a thermoplastic polyurethane elastomer substrate, coating a conventional organosilicon modified acrylic resin solution on the surface of the thermoplastic polyurethane elastomer substrate, and thermally attaching a textured UV transfer film through an attaching roller after the thermoplastic polyurethane elastomer substrate is dried at a set drying temperature and drying time, wherein the thermal attaching temperature and the thermal attaching pressure are set, and the UV transfer film is self-made or purchased and has specific textures thereon. And then placing the mixture in a curing chamber for curing, and setting curing temperature and curing time. Then using a stripping machine to strip the UV transfer film, so that the grains on the UV transfer film are corresponding to the grains formed by coating the thermoplastic polyurethane elastomer substrate with the organosilicon modified acrylic resin solution pressure, and the three-D effect is achieved on the surface of the grains; the peeled UV transfer film can be reused after being treated.
As shown in fig. 1, the prepared protective film sequentially comprises a matte release film 1 (with a thickness of 92 micrometers), a first adhesive layer 2 (with a thickness of 20 micrometers) made of acrylic pressure-sensitive adhesive, a thermoplastic polyurethane elastomer substrate 3 (with a thickness of 150 micrometers) connected with the first adhesive layer 2, and an organosilicon modified acrylic resin layer 4 (with a thickness of 9 micrometers) and a UV transfer film 5 (with a thickness of 125 micrometers) arranged on the surface of the thermoplastic polyurethane elastomer substrate 3. As shown in fig. 2, a schematic view of the thermal bonding is shown, and specifically, the UV transfer film 7 before bonding and the protective film 8 before bonding are bonded by the thermal roller 6. And (5) peeling off the UV transfer film after curing after bonding, thus obtaining the usable paint surface protective film with lines.
Embodiment one: table 1 shows the effect of different drying temperatures and drying times:
embodiment two: table 2 shows the effect of different heat-sealing temperatures and pressures on the texture effect
TABLE 2 influence of different heat paste temperatures and pressures on the texture effect
As can be seen from Table 2, the heat and pressure have a certain influence on the texture after bonding, and the texture effect is best when the temperature is 48-50 ℃.
Embodiment III: effect of curing temperature and time on repairability
Example 4. Preparation of organosilicon modified acrylic resin:
5 parts of vinyltrimethoxysilane, 5 parts of vinyltriethoxysilane, 5 parts of propenyl trimethoxysilane, 5 parts of methacryloxypropyl trimethoxysilane, 5 parts of water, 2 parts of dibenzoyl peroxide, 0.5 part of chloroplatinic acid and 30 parts of methyl methacrylate are stirred and mixed to form a first mixture; dissolving 0.2 part of dibenzoyl peroxide in 5 parts of propylene glycol butyl ether to form a second mixture; adding 40 parts of propylene glycol butyl ether into a reaction kettle, heating to 75-95 ℃, slowly adding half of the first mixture (uniformly adding in 1 hour) into the reaction kettle, stirring for reacting for half an hour, adding the rest of the first mixture and the rest of the second mixture (uniformly dripping in 2 hours, mixing the rest of the first mixture with the second mixture), and reacting for 5 hours after dripping to obtain the organosilicon modified propylene resin.
The conventional organosilicon modified propylene resin is replaced by the organosilicon modified propylene resin prepared by the invention, the organosilicon modified propylene resin can be dried at the drying temperature of 50-75 ℃, the window is large, and the organosilicon modified propylene resin has no delamination, film adhesion and clear texture and can be peeled off when being subjected to hot pasting temperature and pressure and curing environment.
Claims (10)
1. The preparation method of the paint surface protection film with the grains is characterized by comprising the following steps:
1) Coating acrylic pressure-sensitive adhesive on the first release film, forming a first adhesive layer on the surface of the first release film, and then attaching a thermoplastic polyurethane elastomer substrate;
2) Coating an organosilicon modified acrylic resin solution on the surface of the thermoplastic polyurethane elastomer substrate, and then performing first heat treatment to form an organosilicon modified acrylic resin layer on the surface of the thermoplastic polyurethane elastomer substrate;
3) Attaching a UV transfer film with grains to the surface of the organosilicon modified acrylic resin layer;
4) After the second heat treatment, stripping the UV transfer film with grains, and forming grains on the surface of the organosilicon modified acrylic resin layer to obtain a paint surface protection film with grains;
5) And (3) carrying out third heat treatment on the paint surface protective film with the grains, and curing the fixed grains.
2. The method for producing a textured paint protective film according to claim 1, wherein the method for attaching the textured UV transfer film to the surface of the silicone-modified acrylic resin layer uses a thermal bonding roller at a temperature of at least 50 ℃ and a pressure of at least 0.5MP.
3. The method for producing a textured paint film according to claim 2, wherein the first heat treatment is drying at 80-90 ℃ for 1-10 minutes.
4. The method for preparing a textured paint protective film according to claim 3, wherein the second heat treatment comprises: the curing chamber was allowed to cure for 72 hours at a temperature of 50 ℃.
5. The method of producing a textured paint film according to claim 3, wherein the third heat treatment is: and curing for at least 72 hours.
6. The utility model provides a take line paint protection film which characterized in that includes:
a first release film;
a first adhesive layer applied to the first release film;
a thermoplastic polyurethane elastomer substrate applied over the first adhesive layer;
a silicone modified acrylic resin layer applied to the thermoplastic polyurethane elastomer substrate;
the thermoplastic polyurethane elastomer base material and the organosilicon modified acrylic resin layer are provided with set lines.
7. The textured paint protective film of claim 6, wherein the first adhesive layer is formed from an acrylic pressure sensitive adhesive.
8. The utility model provides a paint protection film which characterized in that includes:
a first release film;
a first adhesive layer applied to the first release film;
a thermoplastic polyurethane elastomer substrate applied over the first adhesive layer;
a silicone modified acrylic resin layer applied to the thermoplastic polyurethane elastomer substrate;
the UV transfer film is applied to the organosilicon modified acrylic resin layer, the UV transfer film is preset with grains, and after the UV transfer film is peeled off, the grains can be formed on the thermoplastic polyurethane elastomer base material and the organosilicon modified acrylic resin layer.
9. The paint protective film as claimed in claim 8, wherein said first adhesive layer is formed of acrylic pressure sensitive adhesive.
10. The paint protective film as claimed in claim 9, wherein said first release film is a matte release film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310003690.5A CN116218394A (en) | 2023-01-03 | 2023-01-03 | Textured paint protective film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310003690.5A CN116218394A (en) | 2023-01-03 | 2023-01-03 | Textured paint protective film and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN116218394A true CN116218394A (en) | 2023-06-06 |
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| CN202310003690.5A Withdrawn CN116218394A (en) | 2023-01-03 | 2023-01-03 | Textured paint protective film and preparation method thereof |
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| Country | Link |
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| CN (1) | CN116218394A (en) |
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2023
- 2023-01-03 CN CN202310003690.5A patent/CN116218394A/en not_active Withdrawn
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Building 5, No. 1333 Haigang Road, Dushangang Town, Pinghu City, Jiaxing City, Zhejiang Province, 314000 Applicant after: Zhejiang Shihe New Materials Technology Co.,Ltd. Address before: Building 5, No. 1333 Haigang Road, Dushangang Town, Pinghu City, Jiaxing City, Zhejiang Province, 314000 Applicant before: Zhejiang zhongweishihe New Material Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20230606 |
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| WW01 | Invention patent application withdrawn after publication |