Low-specific-weight heat-conducting silica-gel gasket for new-energy vehicle and preparation method thereof

A technology of new energy vehicles and heat-conducting silica gel, applied in chemical instruments and methods, materials for heat exchange, etc.

Inactive Publication Date: 2018-08-24
苏州佰旻电子材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the use of a large number of functional fillers such as thermal conductivity and mechanical strength, although functions such as thermal conductivity can be well realized, these thermal conductive silica gels are high-density. As the weight of new energy vehicles increases, its application in new energy vehicles is limited. Widely used in automobiles

Method used

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  • Low-specific-weight heat-conducting silica-gel gasket for new-energy vehicle and preparation method thereof
  • Low-specific-weight heat-conducting silica-gel gasket for new-energy vehicle and preparation method thereof
  • Low-specific-weight heat-conducting silica-gel gasket for new-energy vehicle and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] 1) Weigh 95.375g of vinyl silicone oil, 4.625g of hydrogen-containing silicone oil, 100g of silica micropowder, 1.25g of γ-methacryloxypropyltrimethoxysilane, and 0.3g of platinum-containing catalyst;

[0060] 2) Put vinyl silicone oil, hydrogen-containing silicone oil, silicon dioxide micropowder, and γ-methacryloxypropyltrimethoxysilane in a double planetary mixer, and stir for 180min at 40RPM under a vacuum of <-0.9MPA to ensure that all The material is mixed evenly;

[0061] 3) Add a platinum-containing catalyst, and stir all materials at 40RPM for 30min under a vacuum of <-0.9MPA;

[0062] 4) Place the mixed material in a double-roll calender and press it into a 2MM thick sheet;

[0063] 5) Place the pressed product at 130 degrees and mold it for 30 minutes to obtain the test product.

Embodiment 2

[0065] 1) Weigh 95.375g of vinyl silicone oil, 4.625g of hydrogen-containing silicone oil, 375g of aluminum hydroxide micropowder, 75g of boron nitride micropowder, 5.25g of methyltrimethoxysilane, and 0.3g of platinum-containing catalyst;

[0066] 2) Put vinyl silicone oil, hydrogen-containing silicone oil, aluminum hydroxide micropowder, boron nitride micropowder, and methyltrimethoxysilane in a double planetary mixer, and stir for 180min at 40RPM under vacuum <-0.9MPA to ensure that all materials are mixed uniform;

[0067] 3) Add a platinum-containing catalyst, and stir all materials at 40RPM for 30min under a vacuum of <-0.9MPA;

[0068] 4) Place the mixed material in a double-roll calender and press it into a 2MM thick sheet;

[0069] 5) Place the pressed product at 130 degrees and mold it for 30 minutes to obtain the test product.

Embodiment 3

[0071] 1) Weigh 95.625g of vinyl silicone oil, 4.375g of hydrogen-containing silicone oil, 375g of aluminum hydroxide micropowder, 65g of boron nitride micropowder, 165g of alumina micropowder, 6.05g of dodecyltrimethoxysilane, and 0.3g of platinum-containing catalyst;

[0072] 2) Put vinyl silicone oil, hydrogen-containing silicone oil, aluminum hydroxide micropowder, boron nitride micropowder, alumina micropowder, and dodecyltrimethoxysilane in a double planetary mixer, and stir at 40RPM under a vacuum of <-0.9MPA 180MIN, to ensure that all materials are mixed evenly;

[0073] 3) Add a platinum-containing catalyst, and stir all materials at 40RPM for 30min under a vacuum of <-0.9MPA;

[0074] 4) Place the mixed material in a double-roll calender and press it into a 2MM thick sheet;

[0075] 5) Place the pressed product at 130 degrees and mold it for 30 minutes to obtain the test product.

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Abstract

The invention discloses a low-specific-weight heat-conducting silica-gel gasket for a new-energy vehicle. The low-specific-weight heat-conducting silica-gel gasket is prepared from the following components in parts by weight: 100 parts of organopolysiloxane, 200-2000 parts of high-heat-conductivity inorganic filler, 0-50 parts of lightweight filler, 0.05-0.5 part of catalyst and pigment, wherein the organopolysiloxane is a composition of vinyl polysiloxane and hydrogen-containing polysiloxane; the high-heat-conductivity inorganic filler is prepared from one or more of silicon dioxide, aluminium oxide, zinc oxide, magnesium oxide, aluminium hydroxide, aluminium nitride, silicon nitride, boron nitride and silicon carbonate; the particle size of the high-heat-conductivity inorganic filler is0.1-100mu m. The low-specific-weight heat-conducting silica-gel gasket disclosed by the invention has the beneficial effects that the conventional performances of the heat-conducting silica-gel gasketcan be ensured, meanwhile the low specific weight of the heat-conducting silica-gel gasket is realized, the weight of the low-specific-weight heat-conducting silica-gel gasket under the equal heat-conductivity coefficient is 40%-70% of that of the conventional heat-conducting gasket in the prior art, and the lightweight requirement for the new-energy vehicle is met.

Description

technical field [0001] The invention relates to the technical field of heat-conducting silica gel, in particular to a low-specific-gravity heat-conducting silica gel gasket for new energy vehicles and a preparation method thereof. Background technique [0002] Thermally conductive silicone gasket is a kind of thermally conductive interface material synthesized by a special process based on silica gel, adding various auxiliary materials such as metal oxides. It is specially produced for the design scheme of using gaps to transfer heat. It can fill gaps and complete The heat transfer between the heating part and the heat dissipation part also plays the role of insulation, shock absorption and sealing, which can meet the design requirements of miniaturization and ultra-thin equipment. It is extremely manufacturable and practical, and the thickness is applicable to a wide range. It is an excellent thermally conductive filler material. [0003] However, due to the large amount o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05C08K13/04C08K7/28C08K7/24C08K3/36C08K3/22C08K3/28C08K3/38C08K3/34C09K5/14
CPCC08L83/04C08K2003/222C08K2003/2227C08K2003/2296C08K2003/282C08K2003/385C08L2201/02C08L2205/025C09K5/14C08K13/04C08K7/28C08K7/24C08K3/36C08K3/22C08K3/28C08K3/38C08K3/34
Inventor 朱陈亮王金权
Owner 苏州佰旻电子材料科技有限公司
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