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Heat-conducting gel capable of being rapidly cured at room temperature and preparation method of heat-conducting gel

A fast-curing, room-temperature technology, applied in the field of thermally conductive materials, can solve problems affecting product quality and poor dispersion of silicone oil, and achieve the effects of improving curing efficiency, being suitable for large-scale production, and high economic benefits

Inactive Publication Date: 2021-08-20
福建臻璟新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the addition of carbon nanotubes in this patent improves the thermal conductivity, its dispersion in silicone oil is not good, which affects product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of heat-conducting gel and preparation method thereof rapidly cured at room temperature

[0030] The raw materials for preparing the thermally conductive gel rapidly cured at room temperature include: 7.5kg of benzyl silicone oil, 12.5kg of modified silicone oil, 7kg of amorphous silica, 22kg of modified aluminum nitride powder, 0.36kg of platinum-containing catalyst, 3.6kg of octyltrimethoxysiloxane, 2.4kg of hydrogen-containing silicone oil; the platinum-containing catalyst is a capsule-type platinum catalyst, and its platinum content is 18000ppm-22000ppm;

[0031] Among them, the preparation method of the above-mentioned modified silicone oil includes: mixing hydrogen-containing silicone oil, allyl polyoxyethylene polyoxypropylene ether at a weight ratio of 1.4:1, heating to 95°C, adding isopropanol solution of chloroplatinic acid, and heating React at 105°C for 4.5 hours to obtain pretreated silicone oil 1; mix dimethyl silicone oil and bisamide, add oleic ac...

Embodiment 2

[0037] A kind of heat-conducting gel and preparation method thereof rapidly cured at room temperature

[0038] The raw materials for preparing the thermally conductive gel rapidly cured at room temperature include: 7.5kg of benzyl silicone oil, 12.5kg of modified silicone oil, 7kg of amorphous silica, 22kg of modified aluminum nitride powder, 0.36kg of platinum-containing catalyst, 3.6kg of octyltrimethoxysiloxane, 2.4kg of hydrogen-containing silicone oil, 16kg of silicon carbide and 12kg of zinc oxide; the density of the silicon carbide is 2.75g / cm 2 , the particle size is 325 mesh; the density of the zinc oxide is 30.5g / cm 2 , with a particle size of 325 mesh; the platinum-containing catalyst is a capsule-type platinum catalyst, and its platinum content is 18000ppm-22000ppm;

[0039]Among them, the preparation method of the above-mentioned modified silicone oil includes: mixing hydrogen-containing silicone oil, allyl polyoxyethylene polyoxypropylene ether at a weight ratio...

Embodiment 3

[0045] A kind of heat-conducting gel and preparation method thereof rapidly cured at room temperature

[0046] The raw materials for preparing the thermally conductive gel rapidly cured at room temperature include: 3kg of benzyl silicone oil, 5kg of modified silicone oil, 2kg of amorphous silica, 35kg of modified aluminum nitride powder, 0.12kg of platinum-containing catalyst, octyl 1.2kg of trimethoxysiloxane, 1.2kg of hydrogen-containing silicone oil, 8kg to 24kg of silicon carbide, and 5kg to 18kg of zinc oxide; the density of the silicon carbide is 2.75g / cm 2 , the particle size is 325 mesh; the density of the zinc oxide is 30.5g / cm 2 , the particle size is 325 mesh; the platinum-containing catalyst is a capsule-type platinum catalyst, and its platinum content is 6000ppm~12000ppm;

[0047] Among them, the preparation method of the above-mentioned modified silicone oil includes: mixing hydrogen-containing silicone oil, allyl polyoxyethylene polyoxypropylene ether at a weig...

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Abstract

The invention discloses heat-conducting gel capable of being rapidly cured at room temperature and a preparation method of the heat-conducting gel. The heat-conducting gel capable of being rapidly cured at room temperature is prepared from the following raw materials in parts by weight: 3 to 12 parts of polymethylphenyl siloxane oil, 5 to 20 parts of modified silicone oil, 2 to 12 parts of amorphous silicon dioxide, 35 to 50 parts of modified aluminum nitride powder, 0.12 to 0.6 part of a platinum-containing catalyst, 1.2 to 6 parts of octyl trimethoxy siloxane and 1.2 to 3.6 parts of hydrogen-containing silicone oil. According to the invention, the prepared heat-conducting gel capable of being rapidly cured at the room temperature is stable in heat-conducting property, large in heat-conducting coefficient and short in curing time; and the preparation method of the heat-conducting gel capable of being rapidly cured at the room temperature is simple, the preparation technology is easy to operate, economic benefits are high, and the method is suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of heat-conducting materials, in particular to a heat-conducting gel rapidly cured at room temperature and a preparation method thereof. Background technique [0002] Thermally conductive gel is a gel-like thermally conductive material made of silica gel composite thermally conductive filler, which is stirred, mixed and packaged. Compared with thermal pads, thermal conductive gel has better surface affinity, can be compressed to a very low thickness, significantly improves heat transfer efficiency, and can achieve the performance of some silicone grease. In addition, the thermally conductive gel has almost no hardness, no internal stress will be generated on the equipment after use, and continuous operation can be realized. However, depending on the product preparation method and raw materials, the curing time of the thermally conductive gel varies from 30 minutes to 3 hours. The fluidity of the gel during...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/12C08L83/04C08L83/08C08K3/36C08K9/10C08K3/28C08J3/02
CPCC08J3/02C08J2383/12C08J2483/04C08J2483/08C08K3/36C08K9/10C08K2003/282
Inventor 林伟毅陈智刘卫平林武城
Owner 福建臻璟新材料科技有限公司
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