Method for preparing liquid silicone rubber for LCD screen protection film

A liquid silicone rubber, screen protector technology, applied in film/sheet adhesives, adhesives, adhesive additives, etc., can solve the problems of incompatibility, troublesome replacement, and the performance of double 85 resistance cannot meet the requirements. Improve the performance of double 85 resistance, simple production process and high production efficiency
CN104479622AActive Publication Date: 2015-04-01浙江森日有机硅材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
浙江森日有机硅材料有限公司
Publication Date
2015-04-01

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Abstract

The invention relates to a method for preparing liquid silicone rubber for an LCD screen protection film. The method comprises the following steps: mixing vinyl silicone oil, methyl vinyl raw rubber and methyl vinyl MQ silicon resin at the mass ratio of (4-8) to (1-5) to (0.5-5), so as to obtain base rubber; taking 100 parts by mass of base rubber, adding 0.005-0.05 part by mass of a catalyst, and stirring to obtain mixed rubber I; taking 100 parts by mass of base rubber, adding 1-5 parts by mass of a cross-linking agent, 0.0001-0.01 part by mass of an inhibitor and 1-5 parts by mass of a tackifier, and stirring to obtain mixed rubber II; mixing the mixed rubber I, the mixed rubber II and a solvent at the mass ratio of 1 to (0.8-1.2) to (1-5); and coating the base material, and solidifying, so as to obtain the liquid silicone rubber for the LCD screen protection film. According to the liquid silicone rubber for the LCD screen protection film, obtained through the method by selecting proper raw materials and preparation conditions, the dual 85 resistance can reach over 1440 hours; no gumming is achieved; the glass is not cohered; the adhesion with the PET base material can reach the effect of cohesive failure; the transparency can be up to 97%; the overall preparation process is simple; and the production efficiency is high.
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Description

technical field

[0001] The invention belongs to the field of new polymer materials, and in particular relates to a preparation method of liquid silicone rubber for an LCD screen protective film. Background technique

[0002] At present, with the wide application of touch screens, the overall cost of screens is very high for electronic products containing touch screens. protection is also getting more and more attention. For manufacturers, the screen protective film is required to be dustproof, easy to remove, and leave no residual glue, which can greatly improve production efficiency and reduce the damage rate of the touch screen; for users, the general protective film glue is acrylic Ester glue can protect the screen to a certain extent, but when the life of the acrylic protective film expires, it is very troublesome to replace it, because the acrylic protective film is directly bonded to the touch screen, and the residual glue must be removed. If it is completely removed...

Claims

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