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A transparent silicone gel adhesive

A silicone and adhesive technology, used in adhesives and other directions, can solve the problems of high cost and price, cumbersome process, lack of resistance to cracking and impact, etc.

Active Publication Date: 2016-02-17
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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  • A transparent silicone gel adhesive
  • A transparent silicone gel adhesive
  • A transparent silicone gel adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Example 1: A transparent silicone gel adhesive

[0059] 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:

[0060] 60 parts by weight of base material;

[0061] Catalyst 0.1 weight part;

[0062] 5 parts by weight of auxiliary materials;

[0063] The catalyst is chloroplatinic acid.

[0064] Described B component is made up of the material of blanking weight part:

[0065]

[0066] Wherein, the base material is a compound conforming to the general formula (1).

[0067]

[0068] In the formula, the R in the compound of the general formula (1) 1 and R 2 stands for methyl, R 3 and R 4 It 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.

[0069] The crosslinking agent corresponds to a compound of general fo...

Embodiment 2 8

[0095] Embodiment 2-8: A transparent silicone gel adhesive

[0096] A transparent silicone gel adhesive, which is prepared by mixing component A and component B according to the mass ratio of 1:1.

[0097] The A group batching table of embodiment two~six is ​​as follows:

[0098]

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

[0099] The batching table of B group of embodiment two~six is ​​as follows:

[0100]

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

A transparent silicone gel adhesive, which is prepared by mixing component A and component B in a mass ratio of 1:1; the component A is made from 60 ~95 parts by weight of base material, 0.1~0.5 parts by weight of catalyst and 5~40 parts by weight of auxiliary materials. The B component consists of 60~95 ​​parts by weight of base material, 5~20 parts by weight of cross-linking agent, It consists of 0.1 to 0.5 parts by weight of inhibitors and 1 to 20 parts by weight of auxiliary materials. The invention is a two-component addition-type transparent AB silicone gel adhesive that has good adhesion to glass, PC boards and PMMA. The refractive index of the present invention is between 1.40 and 1.43. It is a colorless and transparent gel with a light transmittance of more than 92%. It has certain elasticity and recovery properties, can resist external impact, and can maintain lasting adhesion. It can be completely cured at room temperature or when heated, and has good economy 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 Patents(China)
IPC IPC(8): C09J183/07C09J183/05C09J183/06
CPCC08G77/12C08G77/14C08G77/18C08G77/20C08K5/56C08L83/00C09J183/04
Inventor 石东
Owner SUZHOU TONGLI PHOTOELECTRIC CO LTD
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