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Transparent lacquer protective film and application thereof

A technology of protective film and clear paint, applied in the direction of pressure-sensitive film/sheet, film/sheet release liner, film/sheet adhesive, etc., can solve the problem of burns, large water contact angle and poor impact resistance and other problems, to achieve the effect of easy operation, low water contact angle, and high impact resistance water contact angle

Active Publication Date: 2019-06-04
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of poor impact resistance and large water contact angle of the current paint protection film, the present invention provides a transparent paint protection film
The paint protection film prepared by the invention not only has high light transmittance and self-repairing performance, but also has excellent performances such as high impact resistance and low water contact angle, which solves the problem of the impact resistance of the current paint protection film during use. Poor performance and problems with sunburn after rain and spots when used

Method used

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  • Transparent lacquer protective film and application thereof
  • Transparent lacquer protective film and application thereof
  • Transparent lacquer protective film and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0069] The preparation method of transparent paint protective film provided by the invention comprises the steps:

[0070] a. Accurately weigh the parts by weight of each component of the self-repairing layer, add it to an organic solvent, and stir evenly to obtain a self-repairing glue coating liquid;

[0071] b. Evenly coat the self-healing glue coating solution on the upper surface of the substrate layer, and then enter the oven to bake at a temperature of 40-125°C to form a self-healing layer on the upper surface of the substrate layer, and the winding place is The surface of the self-repairing layer is laminated with a PET release film layer by a pressing roller to obtain a semi-finished product;

[0072] c. Coating pressure-sensitive adhesive on the lower surface of the base material layer of the semi-finished product, then entering the oven to bake at a temperature of 40-150°C, forming a pressure-sensitive adhesive layer on the lower surface of the base material layer o...

Embodiment 1

[0081] The invention provides a transparent paint protection film, which includes a self-repairing layer, a base material layer and a pressure-sensitive adhesive layer; wherein the self-repairing layer is arranged on one side of the base material layer, and the The other side of the substrate layer is provided with the pressure-sensitive adhesive layer.

[0082] The raw material of the self-healing layer of the transparent paint protection film is composed of the following materials: polyol resin: 55 parts by weight; crosslinking agent: 18 parts by weight; inorganic nanoparticles: 26.3 parts by weight; catalyst: 0.2 parts by weight; Ultraviolet absorbent: 0.5 parts by weight; wherein the polyol resin is polyester polyol resin, specifically 651MPA of Covestro; the crosslinking agent is TDI trimer, specifically E1660 of Covestro; the inorganic nanoparticles are The nano-alumina particles have a particle size of 40nm; the catalyst is dibutyltin dilaurate; the ultraviolet absorber...

Embodiment 2

[0089] The raw material of the self-healing layer of the transparent paint surface protective film as described in Example 1 is made up of following materials: polyol resin: 78 weight parts; Crosslinking agent: 11 weight parts; Inorganic nanoparticles: 5 weight parts; Catalyst: 3.0 parts by weight; UV absorber: 3.0 parts by weight; wherein the polyol resin is polyester polyol resin, specifically UXP2698 of Covestro; the crosslinking agent is HDI trimer, specifically HT-790B of Wanhua Chemical ; The inorganic nanoparticles are nano silicon oxide particles with a particle size of 10nm; the catalyst is dibutyltin dilaurate; the ultraviolet absorber is a benzotriazole ultraviolet absorber.

[0090] Wherein, the organic solvent in the self-healing glue coating solution is ethyl acetate; the material of the base material layer is TPU, and the thickness is 250 μm; the thickness of the self-healing layer is 8 μm; the pressure-sensitive adhesive layer It is an acrylate layer with a thi...

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Abstract

The invention relates to the field of functional films, in particular to a transparent lacquer protective film and application thereof. In order to solve the problem that the current lacquer protective film has poor impact resistance and large water contact angle, the invention provides a transparent lacquer protective film and application thereof. The transparent lacquer protective film providedby the invention comprises a self-healing layer, a substrate layer and a pressure-sensitive adhesive layer. The raw materials of the self-healing layer are composed of the following materials (by weight): 55-80 parts of polyol resin, 3-18 parts of a crosslinking agent, 5-32 parts of inorganic nanoparticles, 0.2-3 parts of a catalyst, and 0.5-3 parts of an ultraviolet light absorber. The prepared lacquer protective film not only has high light transmittance and self-repairing property, but also has excellent performances such as high impact performance and low water contact angle. The lacquer protective film provided by the invention has simple preparation process, is easy to operate, and is convenient for industrial production.

Description

technical field [0001] The invention relates to the field of functional films, in particular to a transparent paint protection film and its application. 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. Simultaneously rising with the automobile consumer market is the automobile maintenance market. [0003] Paint Protective Film (PPF for short), also known as "invisible car cover", is a layer of transparent protective film attached to the surface of the car body. Its main function is to protect the original car paint of the car from damage. This product not only has strong toughness, but also has a self-repair function, which can effectively prevent scratches and sand hits, and also isolates the contact between the car paint and the air, and can prevent acid rain, asphalt, bird droppings, etc. from damaging the paint surface. harm. At the same ti...

Claims

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Application Information

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IPC IPC(8): C09J7/24C09J7/25C09J7/38C09J7/40C09D175/06C09D7/61
Inventor 李刚任远飞薛永富徐升杨科彦唐海江张彦
Owner NINGBO EXCITON TECH
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