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Transparent organic silicon gel adhesive

A silicone and adhesive technology, used in adhesives and other directions, can solve the problems of cumbersome process, lack of anti-cracking and impact performance, high cost and price

Active Publication Date: 2014-06-18
SUZHOU TONGLI PHOTOELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of epoxy resin is that its resistance to yellowing is relatively poor, and at the same time, its resistance to cracking and impact is also lacking.
The disadvantage of rubber-type adhesives is poor storage stability
The disadvantage of polyurethane binder is that it has poor temperature resistance and is easy to hydrolyze at high temperature.
Currently widely used OCA water glue for touch screen has relatively large limitations due to the high cost and price, and the cumbersome process.

Method used

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  • Transparent organic silicon gel adhesive
  • Transparent organic silicon gel adhesive
  • Transparent organic silicon gel adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Example 1: A transparent silicone gel adhesive

[0058] A kind of transparent silicone gel adhesive, described transparent silicone gel adhesive is prepared by mixing A component and B component according to the mass ratio of 1:1; Ingredients for servings:

[0059] Base material 60 parts by weight;

[0060] Catalyst 0.1 part by weight;

[0061] 5 parts by weight of auxiliary materials;

[0062] The catalyst is chloroplatinic acid.

[0063] Described B component is made up of the material of blanking weight part:

[0064]

[0065] Wherein, the base material is a compound conforming to the general formula (1).

[0066]

[0067] In the formula, R in the compound of the general formula (1) 1 and R 2 stands for methyl, R 3 and R 4 represents vinyl, and the vinyl content is 0.05wt%; the viscosity of the compound conforming to the general formula (1) is 10000 centipoise. x=10, y=15.

[0068] The crosslinking agent corresponds to a compound of general formula (...

Embodiment 2 8

[0094] Embodiment 2-8: A transparent silicone gel adhesive

[0095] A transparent silicone gel adhesive, which is prepared by mixing component A and component B according to the mass ratio of 1:1.

[0096] The A group batching table of embodiment two~six is ​​as follows:

[0097] Binder catalyst Accessories Embodiment two 85 parts by weight 0.2 parts by weight 25 parts by weight Embodiment three 95 parts by weight 0.3 parts by weight 15 parts by weight Embodiment Four 90 parts by weight 0.5 parts by weight 20 parts by weight Embodiment five 67 parts by weight 0.1 parts by weight 5 parts by weight Embodiment six 85 parts by weight 0.15 parts by weight 30 parts by weight

[0098] The batching table of B group of embodiment two~six is ​​as follows:

[0099] Binder crosslinking agent Inhibitor Accessories

[0100] Embodiment two 65 parts by weight 7 parts by weight ...

Embodiment 2

[0102] Embodiment 2: The compound conforming to the general formula (1) and the compound conforming to the general formula (2) are mixed according to the mass ratio of 1:1. In general formula (1), R 1 Represents methyl; R 2 , R 3 , R 4 represents a vinyl group; x=20, y=20; the viscosity of the compound conforming to the general formula (1) is 7000 centipoise; in the general formula (2), a is equal to 20, and b is equal to 30.

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Abstract

The invention relates to a transparent organic silicon gel adhesive which is prepared by mixing a component A and a component B in a weight ratio of 1:1, wherein the component A is prepared from 60-95 parts by weight of base material, 0.1-0.5 part by weight of catalyst and 5-40 parts by weight of auxiliary material, and the component B is prepared from 60-95 parts by weight of base material, 5-20 parts by weight of cross-linking agent, 0.1-0.5 part by weight of inhibitor and 1-20 parts by weight of auxiliary material. The invention relates to a dual-component addition-type transparent AB organic silicon gel adhesive which has good adhesion to glass, PC (Polycarbonate) boards and PMMA (Polymethyl Methacrylate). The refractive index of the adhesive provided by the invention is 1.40-1.43, and the adhesive is colorless and transparent gel with the light transmissivity being over 92%. The adhesive has certain elasticity and resilience and can resist external impacts and maintain lasting adhesion. The adhesive at the room temperature or being heated can be fully cured; therefore, the adhesive has good economical efficiency and reliability.

Description

technical field [0001] The invention relates to a transparent silicone gel adhesive, in particular to an optical-grade transparent silicone gel adhesive, which can be used for bonding glass, PC boards, PMMA, etc., and is suitable for processing touch screens and liquid crystal display panels and other optical components, which belong to the technical field of novel organosilicone electronic packaging protective materials. Background technique [0002] In the industry, adhesives applicable to transparent optical components include epoxy resin adhesives, rubber adhesives, modified acrylic resin adhesives, polyurethane adhesives and other materials. [0003] The disadvantage of epoxy resin is that its resistance to yellowing is relatively poor, and at the same time, its resistance to cracking and impact is also lacking. A disadvantage of rubber-type adhesives is poor storage stability. The disadvantage of polyurethane binder is that it has poor temperature resistance and is e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/07C09J183/05C09J183/06
CPCC08G77/12C08G77/14C08G77/18C08G77/20C08K5/56C08L83/00C09J183/04
Inventor 石东姬金宏
Owner SUZHOU TONGLI PHOTOELECTRIC CO LTD
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