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Organic silicon resin composite

A resin composition, silicone technology, applied in the direction of coating, etc., can solve the problems of decreased transparency, poor mechanical strength of silicone coating, etc.

Active Publication Date: 2007-10-03
东莞市贝特利新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this type of composition has no corresponding reinforcing filler, the obtained silicone coating has poor mechanical strength and is not suitable for the protection of text and patterns on keys at all.
In order to improve the strength and hardness of the coating, this experiment added fumed silica as a reinforcing filler on the basis of the above-mentioned patents. Although it can significantly improve the mechanical strength and hardness, another problem arises, that is, the transparency decreases. For some product, difficult to accept

Method used

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  • Organic silicon resin composite
  • Organic silicon resin composite
  • Organic silicon resin composite

Examples

Experimental program
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Effect test

example 1

[0027] Take a clean 500ml steel cup, add 100g of methyl vinyl silicone rubber (raw rubber) with a weight average molecular weight of 360,000, 50g of methyl vinyl polysiloxane with a weight average molecular weight of 35,000, and a viscosity of 800mpa S (25°C) methyl vinyl silicone resin 120g, viscosity 100mpa S (25°C) methyl hydrogen polysiloxane 10g, methyl pentynol 1.5g, stir well, add platinum catalyst (4000ppm , calculated as Pt) 1.5g, stir again evenly, remove all the air bubbles under vacuum, pour into the dispensing bottle, use the dispensing machine to put the above mixture on the text and pattern surface of the button, and then vulcanize at 150°C for 15 minutes, put The clicked button is cooled to be tested.

example 2

[0029] Take a clean 500ml steel cup, add 100g of methyl vinyl silicone rubber (raw rubber) with a weight average molecular weight of 360,000, 50g of methyl vinyl polysiloxane with a weight average molecular weight of 50,000, and a viscosity of 1200mpa S (25°C) methyl vinyl silicone resin 120g, viscosity 60mpa S (25°C) methyl hydrogen polysiloxane 10g, methyl pentynol 1.5g, stir well, then add platinum catalyst (2500ppm , calculated as Pt) 1.5g, stir again evenly, remove all the air bubbles under vacuum, pour into the dispensing bottle, use the dispensing machine to put the above mixture on the text and pattern surface of the button, and then vulcanize at 150°C for 15 minutes, put The clicked button is cooled to be tested.

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Abstract

This invention relates to dope technosphere, especially a silicone resin combination. According to weight, it is composed by methylvinylsiloxane rubber methylvinylsiloxane rubber 100 shares, methylvinyl group polysiloxane 50 to 400 shares, methylvinyl group silicone resin 50 to 400 shares, cross-linking agent 5 to 50 shares, catalyzer 0.1 to 2 shares and depressor 0.05 to 2 shares. First mix the materials uniformity, then add catalyzer and whip uniformity. This combination has high rigidity and high diaphaneity after solidifying, has strong protective effect to letter and pattern of knod top, can act dustproof action.

Description

Technical field: [0001] The invention relates to the technical field of coatings, in particular to a silicone resin composition. Background technique: [0002] Since the development of electronic technology, great progress has been made, and the use of key operations is becoming more and more popular, such as remote controls for household appliances, digital keys for mid-to-high-end equipment, and the like. At present, a considerable part of this kind of key is made of silicon rubber material as a whole, with patterns and characters on the surface. Since patterns and characters are easy to wear and fall off, the service life of the keys is greatly shortened. In order to prolong the service life of the key, a layer of protective layer is usually applied on the top of the characters and patterns to achieve the purpose of increasing wear resistance. For silicone coatings, many patents have related reports. For example, US Patent No. 6,805,914 reports a silicone coating, which...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08K5/01C09D183/07
Inventor 王全欧阳彩风汤胜山
Owner 东莞市贝特利新材料有限公司
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