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Antistatic silica gel compound as well as preparation method and application thereof

An anti-static and compound technology, applied in the field of anti-static silica gel compounds and their preparation, can solve the problems of unsustainable anti-static effect, unstable and incomplete curing of silica gel, etc. The effect of eliminating static electricity

Active Publication Date: 2022-02-11
GUANGZHOU JOINTAS CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the solution is to add an antistatic agent to the silica gel, but the antistatic agent itself absorbs a large amount of water, which will make the curing of the silica gel unstable or incomplete, and the antistatic effect is not long-lasting, which cannot meet actual needs

Method used

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  • Antistatic silica gel compound as well as preparation method and application thereof
  • Antistatic silica gel compound as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] The antistatic silicone compound described in this embodiment includes the following components in parts by weight: 1 part of allyl polyether, 0.1 part of vinyltrimethoxysilane, and 0.3 part of hydrogen-containing silicone oil.

[0031] The preparation method of described antistatic silica gel compound, comprises the steps:

[0032] (1) Mix allyl polyether and hydrogen-containing silicone oil and dehydrate at 70-90°C and -0.08MPa pressure for 20-40min, and release nitrogen to normal pressure;

[0033] (2) After step (1) is depressurized, continue to add vinyltrimethoxysilane, then after the temperature of the reaction solution rises to 110-130°C, add Karlster platinum catalyst to react for 30-60min; Karlster platinum catalyst The mass is 0.3% of the total mass of allyl polyether, vinyltrimethoxysilane and hydrogen-containing silicone oil; and the platinum content in Karlster platinum catalyst is 5000ppm;

[0034] (3) After the reaction is completed, the temperature is ...

Embodiment 2

[0039] The antistatic silicone compound described in this embodiment includes the following components in parts by weight: 1 part of allyl polyether, 0.05 part of vinyltrimethoxysilane, and 0.6 part of hydrogen-containing silicone oil.

[0040] The preparation method of described antistatic silica gel compound, comprises the steps:

[0041] (1) Mix allyl polyether and hydrogen-containing silicone oil and dehydrate at 70-90°C and -0.08MPa pressure for 20-40min, and release nitrogen to normal pressure;

[0042] (2) After step (1) is depressurized, continue to add vinyltrimethoxysilane, then after the temperature of the reaction solution rises to 110-130°C, add Karlster platinum catalyst to react for 30-60min; Karlster platinum catalyst The mass is 0.3% of the total mass of allyl polyether, vinyltrimethoxysilane and hydrogen-containing silicone oil; and the platinum content in Karlster platinum catalyst is 5000ppm;

[0043] (3) After the reaction is completed, the temperature is...

Embodiment 3

[0048] The antistatic silicone compound described in this embodiment includes the following components in parts by weight: 0.5 part of allyl polyether, 0.15 part of vinyltrimethoxysilane, and 0.5 part of hydrogen-containing silicone oil.

[0049] The preparation method of described antistatic silica gel compound, comprises the steps:

[0050] (1) Mix allyl polyether and hydrogen-containing silicone oil and dehydrate at 70-90°C and -0.08MPa pressure for 20-40min, and release nitrogen to normal pressure;

[0051] (2) After step (1) is depressurized, continue to add vinyltrimethoxysilane, then after the temperature of the reaction solution rises to 110-130°C, add Karlster platinum catalyst to react for 30-60min; Karlster platinum catalyst The mass is 0.3% of the total mass of allyl polyether, vinyltrimethoxysilane and hydrogen-containing silicone oil; and the platinum content in Karlster platinum catalyst is 5000ppm;

[0052] (3) After the reaction is completed, the temperature ...

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Abstract

The invention discloses an antistatic silica gel compound as well as a preparation method and application thereof. The antistatic silica gel compound is prepared from the following raw materials: allyl polyether, vinyl trimethoxy silane and hydrogen-containing silicone oil. The polyether group of the allyl polyether is introduced into the dimethyl siloxane main chain of the hydrogen-containing silicone oil, so that the obtained antistatic silica gel compound can improve the hydrophilicity of condensed silica gel, greatly accelerate the deep curing speed of condensed silica gel products, eliminate static electricity on the surface of the condensed silica gel, meet the insulation requirement of electronic glue; the allyl polyether, the hydrogen-containing silicone oil and the vinyl trimethoxy silane are compounded, so that the antistatic capability of the polyether silicone oil cannot disappear along with the prolonging of time, and the antistatic function is durable.

Description

technical field [0001] The invention belongs to the technical field of silica gel, and in particular relates to an antistatic silica gel compound and its preparation method and application. Background technique [0002] Electronic products will accumulate a large amount of static charge during operation. The accumulation of a large amount of static charge will cause fatal damage to electronic products, and the generation of a large amount of static charge will attract dust particles, which will affect the life of electronic products. Generally, electronic products are equipped with a protective layer of silica gel. Silicone has good properties such as occasional wear resistance and high temperature resistance, but ordinary silica gel does not have antistatic effect. At present, the solution is to add an antistatic agent to the silica gel, but the antistatic agent itself absorbs a large amount of water, which will make the curing of the silica gel unstable or incomplete, and ...

Claims

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Application Information

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IPC IPC(8): C08G77/46
CPCC08G77/46
Inventor 黄永军刘金明
Owner GUANGZHOU JOINTAS CHEM
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