Antistatic protective film and preparation method thereof

Abstract

The invention provides an antistatic protective film which comprises a stripping layer, a silica gel layer compounded on the stripping layer, a UV (Ultraviolet) layer compounded on the silica gel layer, a substrate layer compounded on the UV layer, an acrylic adhesive layer compounded on the substrate layer and a release layer compounded on the acrylic adhesive layer; the UV layer is made of a material comprising an acrylic monomer, a prepolymer, a photoinitiator and an antistatic agent. The UV layer is formed after the antistatic agent is mixed with a UV adhesive, can achieve an antistatic effect through reducing the volume resistance of the material, is less affected by environmental humidity and also has less influences on the performance of the protective film self. In addition, even if an outermost layer is not coated with the UV layer in the antistatic protective film, a better antistatic effect can also be achieved. Experimental results show that the surface resistance of the protective film provided by the invention can reach 109 ohms. The invention further provides a preparation meted of the antistatic protective film.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an antistatic protective film and a preparation method thereof. Background technique [0002] At present, tempered glass protective film has been widely popularized in the market, and its anti-drop and scratch-resistant characteristics are loved by consumers. The structure of the current tempered glass protective film mainly includes a peeling layer, a use layer and a release layer. Among them, the use layer is the core part, which is composed of a base material coated with a silica gel layer and an acrylic layer respectively. It is easy to accumulate static electricity during use, so it is easy to absorb dust and impurities, cause pollution, and easily cause the tempered glass to fall off. [0003] At present, antistatic additives are usually added to the acrylic adhesive layer or organic silica gel layer in the market to achieve antistatic effect. But th...

AI Technical Summary

Problems solved by technology

But there are disadvantages in doing so: antistatic agents are generally compounds with amphoteric groups, which have poor compatibility with silicones, which can easily cause whitening and fogging of the protective film, and affect the adhesion of silica gel; When adding an antistatic agent, the addition amount must reach more than 5% to have an antistatic effect, which will not only cause the problem of reduced peel strength, but also greatly increase the cost

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