CN115960549A - PET (polyethylene terephthalate) film for automobile - Google Patents
PET (polyethylene terephthalate) film for automobile Download PDFInfo
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- CN115960549A CN115960549A CN202211638815.3A CN202211638815A CN115960549A CN 115960549 A CN115960549 A CN 115960549A CN 202211638815 A CN202211638815 A CN 202211638815A CN 115960549 A CN115960549 A CN 115960549A
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- 229920000139 polyethylene terephthalate Polymers 0.000 title claims abstract description 61
- 239000005020 polyethylene terephthalate Substances 0.000 title claims abstract description 61
- -1 polyethylene terephthalate Polymers 0.000 title claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 61
- 238000002360 preparation method Methods 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 16
- 229910052709 silver Inorganic materials 0.000 claims description 15
- 239000004332 silver Substances 0.000 claims description 15
- 239000011521 glass Substances 0.000 claims description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 12
- 239000012790 adhesive layer Substances 0.000 claims description 11
- 239000004005 microsphere Substances 0.000 claims description 11
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 10
- 229920002635 polyurethane Polymers 0.000 claims description 10
- 239000004814 polyurethane Substances 0.000 claims description 10
- 238000000071 blow moulding Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 9
- DLINORNFHVEIFE-UHFFFAOYSA-N hydrogen peroxide;zinc Chemical compound [Zn].OO DLINORNFHVEIFE-UHFFFAOYSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 7
- 239000005543 nano-size silicon particle Substances 0.000 claims description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 6
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 6
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 6
- 229910021389 graphene Inorganic materials 0.000 claims description 6
- 229920000570 polyether Polymers 0.000 claims description 6
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 6
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 229920006378 biaxially oriented polypropylene Polymers 0.000 claims description 5
- 239000011127 biaxially oriented polypropylene Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 5
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 210000002489 tectorial membrane Anatomy 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims 1
- OGFYIDCVDSATDC-UHFFFAOYSA-N silver silver Chemical compound [Ag].[Ag] OGFYIDCVDSATDC-UHFFFAOYSA-N 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 13
- 229920002799 BoPET Polymers 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- 239000002346 layers by function Substances 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 229920000297 Rayon Polymers 0.000 abstract 1
- 239000010408 film Substances 0.000 description 35
- 239000004417 polycarbonate Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 239000005026 oriented polypropylene Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000013039 cover film Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 230000037072 sun protection Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
The invention discloses a PET (polyethylene terephthalate) film for an automobile, and belongs to the technical field of automobile panel films. It includes that connect gradually: release film, viscose layer, PET substrate layer, high temperature resistant insulating layer, reflection stratum. The invention takes polyethylene terephthalate (PET) as a raw material, and improves the basic function of the PET film by adding specific polymer modification; then adding specific auxiliary materials according to different functional layer numbers; and then, the layers are bonded into a whole, so that various optical and mechanical properties of the PET are greatly improved. The preparation method is simple, mild in preparation conditions and convenient to popularize.
Description
Technical Field
The invention belongs to the technical field of automobile panel laminating, and particularly relates to a PET laminating film for an automobile.
Background
With the common use of automobiles in people's lives, almost every family purchases automobiles, the price of the automobiles is expensive, and in normal use, in order to improve the overall appearance image of the automobile, the surfaces of the automobiles are painted, and meanwhile, in order to be beautiful, to protect the original factory paint or to add other functions, such as fog prevention, heat preservation and heat insulation, and the like; the surface of the automobile body (except the glass panel) is covered with a protective film.
CN104130553A discloses an ultraviolet-proof solar film and a preparation method thereof, which comprises a PET polyester chip, an inorganic ultraviolet absorber, an anti-scratching agent, an anti-blocking agent and a beta-1 # decomposition antireflection agent. The film with the ultraviolet-proof effect is prepared by melt extrusion and stretching. Although the invention cancels a complex metal plating process, the effects of heat insulation, sun protection and sun shading are poor.
CN201910478091.2 discloses a drying device, intelligent color-changing film of nano-silver PET conducting film and a preparation method thereof, wherein the color-changing film is mentioned, the upper and lower diaphragms are bonded by optical glue, however, this kind of mode, when the service environment temperature is higher, certain softening easily takes place for optical glue, lead to the holistic stability variation of color-changing film, the condition that the limit even layering drops easily takes place, and optical glue has certain influence to the transmissivity of light, the light guiding property is poor, make color-changing effect of color-changing film poor.
Disclosure of Invention
The invention provides a PET (polyethylene terephthalate) film for an automobile, and the prepared PET film for the automobile has good comprehensive performance.
A PET tectorial membrane for car, includes that the connection is in proper order: the adhesive comprises a release film, an adhesive layer, a PET substrate layer, a high-temperature-resistant heat-insulating layer and a reflecting layer;
the adhesive layer is composed of at least one of acrylate adhesive, epoxy resin adhesive and organic silicon adhesive;
the PET substrate layer comprises the following components in parts by mass:
50-70 parts of polyethylene glycol terephthalate, 30-40 parts of polyurethane acrylate and 10 parts of nano silicon dioxide; 12-20 parts of graphene oxide;
the high-temperature-resistant heat-insulating layer comprises the following components in parts by mass:
50-70 parts of polyurethane acrylate, 30-40 parts of rosin-based polyether acrylic acid, 10 parts of nano titanium dioxide and 5-8 parts of nano zinc dioxide;
the reflecting layer comprises the following components in parts by mass:
100 parts of polyethylene terephthalate, 4-6 parts of glass microspheres and 1.5-2 parts of filiform silver;
the filiform silver is filiform pure silver or filiform silver alloy.
Particularly, the release layer is selected from at least one of a PE release film, a PET release film, an OPP release film, a PC release film, a PMMA release film, a BOPP release film, a TPX release film and a PTFE release film.
Particularly, the particle size range of the nano silicon dioxide is D95 less than or equal to 60nm; the particle size range of the nano titanium dioxide is that D95 is less than or equal to 30nm; the diameter range of the nano zinc dioxide is that D95 is less than or equal to 40nm; the particle size of the glass microspheres is 20-50nm; the length of the filiform pure silver or filiform silver alloy is 150nm-300nm; the wire diameter is less than or equal to 20nm.
In particular, the preparation method of the PET substrate layer comprises the following steps:
(1) Adding polyethylene terephthalate, polyurethane acrylate and a solvent into a mixer together, and uniformly stirring to obtain a mixed solution;
(2) Adding nano silicon dioxide and graphene oxide into the mixed solution obtained in the step (1) to obtain a mixed material;
(3) And extruding the mixture, granulating, blow-molding to form a film, and cooling and shaping to obtain the PET substrate layer.
Particularly, the preparation method of the high-temperature resistant heat insulation layer comprises the following steps:
and (3) blending polyurethane acrylate and rosin-based polyether acrylic acid, adding nano titanium dioxide and nano zinc dioxide, blending, melting, extruding, granulating, blow molding to form a film, and cooling and shaping to obtain the high-temperature-resistant heat-insulating layer.
In particular, the preparation method of the reflecting layer comprises the following steps: preheating the glass microspheres and the filiform silver, blending the preheated glass microspheres and the filiform silver with polyethylene glycol terephthalate, then performing melt extrusion granulation, performing blow molding to form a film, and cooling and shaping to obtain the reflecting layer.
According to the preparation method of the PET covering film for the automobile, the PET base material layer, the high-temperature-resistant heat-insulating layer and the reflecting layer are laminated in sequence and then rolled and compounded, the upper adhesive layer is coated on the surface, away from the high-temperature-resistant heat-insulating layer, of the PET base material layer, and then the release film is covered on the adhesive layer, so that the PET covering film for the automobile is obtained.
In the invention, the PET substrate layer is responsible for providing good mechanical properties, the high-temperature-resistant heat-insulating layer is responsible for heat insulation, and the reflecting layer is responsible for assisting in reflecting sunlight for heat insulation and has attractive appearance.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention takes polyethylene terephthalate (PET) as a raw material, and improves the basic function of the PET film by adding specific polymer modification; then adding specific auxiliary materials according to different functional layer numbers; and then the layers are jointed into a whole, so that various different optical and mechanical properties of the PET are greatly improved.
(2) The preparation method is simple, mild in preparation conditions and convenient to popularize.
Detailed Description
For a better understanding of the present invention, the present invention is further described in conjunction with the following specific examples, wherein the terminology used in the examples is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
In the present invention, PE means polyethylene, PET means polyethylene terephthalate, OPP means polypropylene, PC means polycarbonate, PMMA means polymethyl methacrylate (organic glass); BOPP refers to biaxially oriented polypropylene; TPX polymethylpentene, PTFE, means polytetrafluoroethylene.
The preparation of the PET substrate layer comprises the following steps:
(1) Weighing the raw materials according to the table 1;
(2) Adding polyethylene terephthalate, polyurethane acrylate and a solvent into a mixer together, and uniformly stirring to obtain a mixed solution;
(3) Adding nano silicon dioxide and graphene oxide into the mixed solution to obtain a mixed solution;
(4) And extruding the mixture, granulating, blow-molding to form a film, and cooling and shaping to obtain the PET substrate layer.
The preparation of the high-temperature resistant heat insulation layer comprises the following steps:
(1) Weighing the raw materials according to the table 2;
(2) Blending polyurethane acrylate and rosin-based polyether acrylic acid to obtain a premix;
(3) Adding nano titanium dioxide and nano zinc dioxide into the premix and blending again;
(4) And (3) performing melt extrusion granulation, blow molding to form a film, and cooling and shaping to obtain the high-temperature-resistant heat-insulating layer.
The preparation of the reflecting layer comprises the following steps:
(1) Weighing the raw materials according to the table 3;
(2) Preheating glass microspheres and filiform silver to at least 120 ℃;
(3) And blending the glass microspheres, the filiform silver and the polyethylene glycol terephthalate, then performing melt extrusion granulation, performing blow molding to form a film, and cooling and shaping to obtain the reflecting layer.
TABLE 1PET substrate layer raw material ratio
| Raw materials/sequence numbers | 1 | 2 | 3 | 4 | 5 | 6 |
| Polyethylene terephthalate glycolEsters | 50 | 60 | 60 | 70 | 70 | 70 |
| Urethane acrylate | 40 | 30 | 30 | 30 | 35 | 40 |
| Nano silicon dioxide | 10 | 10 | 10 | 10 | 10 | 10 |
| Graphene oxide | 12 | 12 | 16 | 20 | 16 | 24 |
In Table 1, the particle size of the nano titanium dioxide is D95 not more than 30nm.
TABLE 2 raw material ratio of high-temperature resistant thermal insulation layer
| Raw materials/sequence numbers | 7 | 8 | 9 | 10 | 11 | 12 |
| Urethane acrylate | 50 | 55 | 60 | 60 | 65 | 70 |
| Rosin-based polyether acrylic acid | 30 | 30 | 30 | 40 | 35 | 40 |
| Nano titanium dioxide | 10 | 10 | 10 | 10 | 10 | 10 |
| Nano zinc dioxide | 5 | 8 | 5 | 8 | 6 | 8 |
In Table 2, the particle size range of the nano titanium dioxide is D95 which is less than or equal to 30nm; the diameter range of the nano zinc dioxide is that D95 is less than or equal to 40nm.
TABLE 3 raw material ratio of reflecting layer
In Table 3, the particle size of the glass microspheres is 20-50nm; the length of the filiform pure silver or filiform silver alloy is 150nm-300nm; the diameter of the wire is less than or equal to 20nm.
An automotive PET cover film comprising the steps of:
(1) Grasping the raw materials as shown in table 4;
(2) Laminating the PET substrate layer, the high-temperature-resistant heat-insulating layer and the reflecting layer, and then rolling and compounding;
(3) Coating an upper adhesive layer on one surface of the PET substrate layer away from the high-temperature-resistant heat-insulating layer;
(4) And covering a release film on the adhesive layer to obtain the PET covering film for the automobile.
TABLE 4 PET coating film raw Material for automobile
| Raw materials/examples | 1 | 2 | 3 | 4 | 5 | 6 |
| Release film | PE | PET | OPP | PC | PMMA | BOPP |
| Adhesive layer | Acrylic esters | Acrylic esters | Epoxy resin | Epoxy resin | Silicone | Silicone |
| PET substrate layer (Serial number) | 1 | 2 | 3 | 4 | 5 | 6 |
| High-temperature insulating layer (serial number) | 7 | 8 | 9 | 10 | 11 | 12 |
| Reflecting layer (Serial number) | 13 | 14 | 15 | 16 | 17 | 18 |
The prepared PET film for automobiles was subjected to performance test
Hardness tensile strength elongation at break antistatic reflective gloss haze ultraviolet barrier
The performance test method related to the invention adopts the following methods:
GB/T40933-2021 Plastic article film and sheet thermoplastic Plastic film test Manual
Standard test method for tensile Properties of plastics in ASTM-D638-2014
High temperature resistance: the PET film for automobile was heated to 180 ℃ and kept for 30min, and it was observed whether there was any deformation such as shrinkage and warping.
Table 5 testing of the properties of the examples
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | |
| High temperature resistance | No shrinkage and no warping | No shrinkage and no warping | No shrinkage and no warping | No shrinkage and no warping | No shrinkage and no warping | No shrinkage and no warping |
| Maximum elongation (%, transverse direction) | 435 | 481 | 501 | 462 | 523 | 446 |
| Total light transmittance (%) | 3.1 | 3.2 | 2.6 | 1.9 | 2.8 | 1.6 |
| Hardness (H) | 4 | 5 | 4 | 5 | 5 | 5 |
| Near Infrared ray blocking Rate (%) | 94 | 95 | 94 | 94 | 95 | 96 |
| Tensile Strength (MPa, horizontal) | 67.2 | 68.3 | 73.2 | 69.1 | 75.1 | 72.4 |
| Total thickness (um) | 260 | 281 | 272 | 254 | 261 | 278 |
In table 5, the total thickness is the total thickness of the remaining portion except the release film, and the error is within ± 10 um.
The above detailed description is directed to one of the possible embodiments of the present invention, which is not intended to limit the scope of the invention, but rather the scope of the invention is intended to include all equivalent implementations or modifications without departing from the scope of the invention.
Claims (7)
1. PET tectorial membrane for car, its characterized in that is including connecting gradually: the adhesive comprises a release film, an adhesive layer, a PET substrate layer, a high-temperature-resistant heat-insulating layer and a reflecting layer;
the adhesive layer is composed of at least one of an acrylate adhesive, an epoxy resin adhesive and an organic silicon adhesive;
the PET base material layer comprises the following components in parts by mass:
50-70 parts of polyethylene glycol terephthalate, 30-40 parts of polyurethane acrylate and 10 parts of nano silicon dioxide; 12-20 parts of graphene oxide;
the high-temperature resistant heat insulation layer comprises the following components in parts by mass:
50-70 parts of polyurethane acrylate, 30-40 parts of rosin-based polyether acrylic acid, 10 parts of nano titanium dioxide and 5-8 parts of nano zinc dioxide;
the reflecting layer comprises the following components in parts by mass:
100 parts of polyethylene terephthalate, 4-6 parts of glass microspheres and 1.5-2 parts of filiform silver;
the filiform silver is filiform pure silver or filiform silver-silver alloy.
2. The PET covering film for automobiles according to claim 1,
the release layer is selected from at least one of a PE release film, a PET release film, an OPP release film, a PC release film, a PMMA release film, a BOPP release film, a TPX release film and a PTFE release film.
3. The PET coating film for automobiles according to claim 1, wherein the particle size range of the nano silica is D95. Ltoreq.60 nm; the particle size range of the nano titanium dioxide is that D95 is less than or equal to 30nm; the diameter range of the nano zinc dioxide is that D95 is less than or equal to 40nm; the particle size of the glass microspheres is 20-50nm; the length of the filiform pure silver or filiform silver alloy is 150nm-300nm; the diameter of the wire is less than or equal to 20nm.
4. The PET coating film for an automobile according to claim 1, wherein the preparation method of the PET base material layer is:
(1) Adding polyethylene terephthalate, polyurethane acrylate and a solvent into a mixer together, and uniformly stirring to obtain a mixed solution;
(2) Adding nano silicon dioxide and graphene oxide into the mixed solution obtained in the step (1) to obtain a mixed material;
(3) And extruding the mixture, granulating, blow-molding to form a film, and cooling and shaping to obtain the PET substrate layer.
5. The PET covering film for the automobile according to claim 1, wherein the preparation method of the high-temperature-resistant heat-insulating layer is as follows:
and (3) blending polyurethane acrylate and rosin-based polyether acrylic acid, adding nano titanium dioxide and nano zinc dioxide, blending again, melting, extruding, granulating, blow molding to form a film, and cooling and shaping to obtain the high-temperature-resistant heat-insulating layer.
6. The PET coating film for automobiles according to claim 1, wherein the preparation method of the reflective layer is: preheating the glass microspheres and the filiform silver, blending the preheated glass microspheres and the filiform silver with polyethylene glycol terephthalate, then performing melt extrusion granulation, performing blow molding to form a film, and cooling and shaping to obtain the reflecting layer.
7. The method for preparing the PET covering film for the automobile of any one of claims 1 to 6, characterized in that the PET base material layer, the high temperature resistant heat-insulating layer and the reflecting layer are laminated in sequence and then are rolled and compounded, then the upper adhesive layer is coated on one surface of the PET base material layer away from the high temperature resistant heat-insulating layer, and then the release film is covered on the adhesive layer, so that the PET covering film for the automobile is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211638815.3A CN115960549A (en) | 2022-12-20 | 2022-12-20 | PET (polyethylene terephthalate) film for automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211638815.3A CN115960549A (en) | 2022-12-20 | 2022-12-20 | PET (polyethylene terephthalate) film for automobile |
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| CN115960549A true CN115960549A (en) | 2023-04-14 |
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| CN202211638815.3A Pending CN115960549A (en) | 2022-12-20 | 2022-12-20 | PET (polyethylene terephthalate) film for automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117210148A (en) * | 2023-09-13 | 2023-12-12 | 精一门(常州)光学薄膜有限公司 | Radiation refrigeration automobile paint protection film and preparation method thereof |
| CN118418561A (en) * | 2024-07-04 | 2024-08-02 | 江苏维凯科技股份有限公司 | Heat reflection fireproof heat-insulating film material and preparation method thereof |
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| CN112175537A (en) * | 2020-09-30 | 2021-01-05 | 浙江远程车饰股份有限公司 | Automobile sun-proof sun-shading film and preparation method thereof |
| CN113429901A (en) * | 2021-06-30 | 2021-09-24 | 宁波长阳科技股份有限公司 | Heat-insulating noise-reducing car clothes film |
| CN113462134A (en) * | 2021-07-27 | 2021-10-01 | 浙江世博新材料股份有限公司 | Novel PET protective film and preparation method thereof |
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| CN117210148A (en) * | 2023-09-13 | 2023-12-12 | 精一门(常州)光学薄膜有限公司 | Radiation refrigeration automobile paint protection film and preparation method thereof |
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| CN118418561A (en) * | 2024-07-04 | 2024-08-02 | 江苏维凯科技股份有限公司 | Heat reflection fireproof heat-insulating film material and preparation method thereof |
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