Low-initial adhesion high-holding adhesion paint protective film and application thereof

Abstract

The invention relates to the field of functional films, in particular to a low-initial adhesion high-holding adhesion paint protective film and application thereof. The low-initial adhesion high-holding adhesion paint protective film is to solve the problems of high initial adhesion, poor construction and damped holding adhesion of a current paint protective film in the using process. The low-initial adhesion high-holding adhesion paint protective film comprises a self-repairing layer, a base material layer and a pressure-sensitive adhesive layer; and a raw material of the pressure-sensitive adhesive layer is prepared from the following materials in parts by weight: 30-48 parts of crystalline hydroxyl polyurethane resin, 5-32 parts of pokyhydric alcohol resin, 15-40 parts of tackifying resin, 0.5-10 parts of a cross-linking agent, 0.5-3 parts of an ultraviolet light absorber and 0.5-3 parts of an antioxidant. The paint protective film has higher light transmittance and ultraviolet light absorptivity, and has the excellent properties of the low-initial adhesion, the high-holding adhesion and the like at the same time. The low-initial adhesion high-holding adhesion paint protective film is simple in preparation technology, easy in operation, and convenient in industrial production.

Description

technical field [0001] The invention relates to the field of functional films, more specifically, to a paint surface protective film with low initial viscosity and high stickiness and application 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. 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. fro...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of high initial tack and large attenuation of holding power of the current paint protection film during use, the present invention provides a paint protection film with low initial tack and high stickiness

The paint protective film with low initial tack and high stickiness prepared by the present invention not only has higher light transmittance and ultraviolet absorption rate, but also has low initial tack, so that it has good workability and less decay of stickiness, that is, it has Excellent performance such as high sticking force, solves the problems of high initial sticking force and large sticking force attenuation (that is, low sticking force) of the current paint protection film during use

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