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Multi-layer structure protective film and preparation method and application thereof

A multi-layer structure and protective film technology, which is applied in the field of film materials, can solve the problems of debris at the corners, human body injury, scratching the skin, etc., and achieve the effect of excellent performance, not easy to break, and good impact resistance

Inactive Publication Date: 2016-03-23
SHANGHAI WEIKAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its disadvantage is that it is highly brittle. After a period of use, debris will appear on the corners, which is more likely to scratch the skin and cause human injury.
Moreover, after the tempered film is used for a period of time, there will often be edge warping.

Method used

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  • Multi-layer structure protective film and preparation method and application thereof
  • Multi-layer structure protective film and preparation method and application thereof
  • Multi-layer structure protective film and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The buffer layer coating composition comprises the following components in parts by weight:

[0051]

[0052]

[0053] Wherein, the elastic photocurable resin is a trifunctional acrylate unsaturated polymer having both soft and hard segment structures.

[0054] The trifunctional acrylate unsaturated polymer is prepared by a Michael addition reaction in a one-pot method at room temperature, and the preparation method includes the following steps:

[0055] At room temperature, using ethyl acetate as a solvent, react 2-phenoxyethyl acrylate with 1,6-hexanediamine. After the reaction is complete, add polyethylene glycol-200 diacrylate to the reaction system Carry out the reaction, after the reaction is over, add trimethylolpropane triacrylate to the reaction system for reaction; after the reaction is over, add polyethylene glycol-200 diacrylate to the reaction system for reaction, after the reaction is over , precipitated with n-hexane, and then vacuum-dried to obtai...

Embodiment 2

[0059] The buffer layer coating composition comprises the following components in parts by weight:

[0060]

[0061] Wherein, the elastic photocurable resin is a trifunctional acrylate unsaturated polymer having both soft and hard segment structures.

[0062] As a preferred solution, the trifunctional acrylate unsaturated polymer is prepared by using a Michael addition reaction in a one-pot method at room temperature, and the preparation method includes the following steps:

[0063] At room temperature, using ethyl acetate as a solvent, react 2-phenoxyethyl acrylate with 1,6-hexanediamine. After the reaction is complete, add polyethylene glycol-200 diacrylate to the reaction system Carry out the reaction, after the reaction is over, add trimethylolpropane triacrylate to the reaction system for reaction; after the reaction is over, add polyethylene glycol-200 diacrylate to the reaction system for reaction, after the reaction is over , precipitated with n-hexane, and then va...

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Abstract

The invention provides a multi-layer structure protective film and a preparation method and application thereof. The multi-layer structure protective film comprises a hardened layer, a buffering layer, an optical film and a silica gel layer which are sequentially arranged from top to bottom. The hardened layer is a UV photocureable coating layer. The buffering layer is a UV photocureable coating layer. The optical film is a PET base film. The ratio of the thickness of the hardened layer to the thickness of the buffering layer is 1 to 3. Compared with the prior art, the multi-layer structure protective film has the advantages that the surface hardness is high, and the UV hardened layer at the upper end of the novel protective film is high in hardness and excellent in scratch resistance and can better protect a display screen; the impact resistance is high, and according to the novel protective film, due to the fact that the buffering layer is arranged below the optical film, when the protective film is subjected to a heavy hit or collision, the buffering effect is obvious, the display screen is not prone to breakage, no fragments can happen to corners when the protective film is used for a long time, and injuries to human bodies are reduced.

Description

technical field [0001] The invention relates to a multilayer structure protective film and its preparation method and application, belonging to the technical field of film materials. Background technique [0002] Due to the advancement of science and technology, today's electronic equipment usually has a display screen, which is used to display its operating status, etc., to facilitate the user to operate the electronic equipment; and the current mainstream of these electronic equipment screens is LCD screen, and its advantages are nothing more than It is thin, light and competitive in price, etc., but the LCD screen has a disadvantage that its surface is not scratch-resistant and is easily damaged by impact. Therefore, a screen protector is usually used and attached to the screen surface In order to improve the scratch resistance and impact resistance of the screen. [0003] Screen protectors have been widely used on electronic products such as mobile phones, cameras or po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09D175/14C09D167/06C09D4/02C09D4/06C08J7/04
CPCC08J7/042C08J2367/02C09D4/06C09D167/06C09D175/14C09J7/20C08L83/12C08F265/04
Inventor 虞明东周福建朱卫彪缪慧
Owner SHANGHAI WEIKAI CHEM
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