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Yellowing-resistant invisible car cover protective film with self-repairing function and manufacturing process thereof

A self-healing and invisible technology, used in radiation-absorbing coatings, pressure-sensitive films/sheets, film/sheet adhesives, etc. , poor weather resistance and other problems, to achieve excellent self-healing function, improve the performance of UV aging resistance and thermal oxygen aging resistance, excellent anti-scratch effect

Pending Publication Date: 2021-04-27
NINGBO CHANGYANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned phenomenon that the TPU substrate layer is easy to scratch, easy to yellow, poor weather resistance and glue residue in use, which affects the service life of the invisible car coating film, the present invention provides an aging-resistant invisible car film with self-repairing function. Car film

Method used

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  • Yellowing-resistant invisible car cover protective film with self-repairing function and manufacturing process thereof
  • Yellowing-resistant invisible car cover protective film with self-repairing function and manufacturing process thereof

Examples

Experimental program
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Embodiment 1

[0031] The invention provides an aging-resistant invisible car coating film with self-repairing function, which includes a PET protective layer 1, a self-repairing layer 2, a TPU base material layer 3, a pressure-sensitive adhesive layer 4, and a PET release layer 5.

[0032] The raw materials of the self-repairing layer include: 40 parts of fluorine-containing acrylic resin, 4 parts of curing agent, 1 part of ultraviolet absorber, 1 part of antioxidant, 0.5 part of coupling agent, 28 parts of ethyl acetate, 28 parts of butyl acetate share.

[0033] The raw materials of the pressure-sensitive adhesive layer include: 45 parts of polyacrylate, 2 parts of acrylic curing agent, 1 part of ultraviolet absorber, 1 part of antioxidant, 0.5 part of coupling agent, 25 parts of ethyl acetate, 25 parts of butyl acetate share.

[0034] The ultraviolet absorber is a combination of 2-hydroxyl-4-n-octyloxybenzophenone and nano titanium dioxide. The antioxidant is a combination of 2,6-di-ter...

Embodiment 2

[0041] The invention provides an aging-resistant invisible car coating film with self-repairing function, which includes a PET protective layer 1, a self-repairing layer 2, a TPU base material layer 3, a pressure-sensitive adhesive layer 4, and a PET release layer 5.

[0042] The raw materials of the self-repairing layer include: 50 parts of fluorine-containing acrylic resin, 7 parts of curing agent, 2 parts of ultraviolet absorber, 2 parts of antioxidant, 2 parts of coupling agent, 32 parts of ethyl acetate, 32 parts of butyl acetate share.

[0043]The raw materials of the pressure-sensitive adhesive layer include: 40 parts of polyacrylate, 2 parts of acrylic curing agent, 1 part of ultraviolet absorber, 1 part of antioxidant, 0.5 part of coupling agent, 25 parts of ethyl acetate, 25 parts of butyl acetate share.

[0044] The ultraviolet absorber is a combination of 2-hydroxyl-4-n-octyloxybenzophenone and nano titanium dioxide. The antioxidant is a combination of 2,6-di-ter...

Embodiment 3

[0051] The invention provides an aging-resistant invisible car coating film with self-repairing function, which includes a PET protective layer 1, a self-repairing layer 2, a TPU base material layer 3, a pressure-sensitive adhesive layer 4, and a PET release layer 5.

[0052] The raw materials of the self-repairing layer include: 35 parts of fluorine-containing acrylic resin, 3 parts of curing agent, 0.5 part of ultraviolet absorber, 0.5 part of antioxidant, 0.5 part of coupling agent, 25 parts of ethyl acetate, 25 parts of butyl acetate share.

[0053] The raw materials of the pressure-sensitive adhesive layer include: 50 parts of polyacrylate, 3 parts of acrylic curing agent, 1 part of ultraviolet absorber, 1 part of antioxidant, 0.5 part of coupling agent, 29 parts of ethyl acetate, 29 parts of butyl acetate share.

[0054] The ultraviolet absorber is selected from the combination of nano-titanium dioxide and o-hydroxybenzotriazoles. The antioxidant is a combination of 3,...

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Abstract

The invention relates to the field of functional films, in particular to a car paint surface protective film with a self-repairing function and a manufacturing process thereof. The invention provides an anti-aging invisible car cover film with a self-repairing function. The anti-aging invisible car cover film comprises a PET protective layer, a self-repairing layer, a TPU base material layer, a pressure-sensitive adhesive layer and a PET release layer. Fluorine-containing resin is adopted in the self-repairing layer of the invisible car cover film, so that the surface tension of the self-repairing layer can be effectively reduced, and the functions of easy cleaning and scrawling prevention are achieved; an ultraviolet light absorber and an antioxidant are respectively added into the self-repairing layer and the pressure-sensitive adhesive layer, so that the yellowing resistance and the weather resistance of the invisible car cover film can be improved; and a coupling agent is added, so that the compatibility of the ultraviolet light absorber, the antioxidant and the matrix resin can be improved, and an inorganic material cannot be separated out over time.

Description

technical field [0001] The invention relates to the field of functional films, in particular to an automobile paint protection film with self-repairing function and a manufacturing process thereof. Background technique [0002] With the development of economy, China has become the world's largest automobile consumer. More and more cars have entered thousands of households. In 2017, the sales volume of passenger vehicles in my country was 24.72 million, which is an important part of the automobile market. Simultaneously rising with the automobile consumer market is the automobile maintenance market. [0003] Paint Protective Film (PPF for short), also known as "car coating film" or "invisible car coating", is a kind of film that is pasted on the outside of the car paint to protect the car paint and improve the appearance. The general term for transparent protective film. PPF paint protection film can protect the paint surface of the car, prevent scratches in minor acciden...

Claims

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Application Information

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IPC IPC(8): C09J7/29C09J7/38C09J133/04C09J11/06C09J11/04C09D133/04C09D5/32C09D7/48
CPCC09J7/29C09J7/385C09J133/04C09J11/06C09J11/04C09D133/04C09D5/32C09D5/1687C09J2467/006C09J2475/006C09J2433/00C08K2201/011C08K2003/2241C08L2201/08
Inventor 金亚东王佳佳宋明雄周玉波朱正平
Owner NINGBO CHANGYANG TECH