Heat-conducting silicone rubber electronic casting glue and preparation method and application thereof

A heat-conducting silicone rubber, potting technology, applied in circuits, electrical components, battery pack components, etc., can solve the problems of poor thermal conductivity and poor fluidity, and achieve high thermal conductivity, excellent weather resistance, and excellent flow characteristics. Effect

Inactive Publication Date: 2014-04-30
HANGZHOU SILICONE WAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the current problem of poor fluidity and poor thermal conductivity of silicone rubber electronic potting glue, the present invention provides a heat-conducting silicone rubber electronic potting glue and a prepa

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1:

[0034] Add 60 parts of vinyl silicone oil with a viscosity of 200mPa·s and a mass percentage of 1.2% vinyl in a 500L kneader, 50 parts of precipitated white carbon black, and 50 parts of alumina into the vacuum kneader at 80°C Blending, keeping the vacuum at 0.05MPa, dehydrating and blending for 50 minutes; then add 20 parts of hydrogen-containing silicone oil with a viscosity of 1000 mPa·s and a hydrogen content of 0.02%, 2-methyl-3-butynyl 0.1 part of -2 alcohol, add it to a mechanical mixer and blend at room temperature for 15 minutes to obtain glue A;

[0035] Add 100 parts of vinyl silicone oil with a viscosity of 200 mPa·s and a vinyl content of 1.2% by mass, 50 parts of precipitated white carbon black, 50 parts of alumina, and 50 parts of silicon carbide into the vacuum kneader at 150°C Blending, keeping the vacuum at -0.1MPa, dehydrating and blending for 200 minutes; then adding 0.2 part of the catalyst chloroplatinic acid-divinyltetramethyldisiloxane (...

Example Embodiment

[0037] Example 2:

[0038] Add 100 parts of vinyl silicone oil, 50 parts of fumed silica, 300 parts of alumina and 50 parts of boron nitride with a viscosity of 500mPa·s and a vinyl content of 1.1% in a 500L kneader to the vacuum kneading In the machine, blend at 150℃, keep the vacuum degree at 0.08MPa, dehydrate and blend for 200 minutes; then add 10 parts of hydrogen-containing silicone oil with a viscosity of 500mPa·s and a hydrogen content of 0.7% by mass, 3-methyl 0.3 parts of 1-hexynyl-3-ol and 0.2 parts of 1-ethynylcyclohexanol are added to a mechanical mixer and blended for 45 minutes at room temperature to obtain Gum A;

[0039] Add 60 parts of vinyl silicone oil with a viscosity of 200mPa·s and a vinyl content of 1.2% by mass, 300 parts of precipitated silica and 50 parts of silicon carbide to the vacuum kneader, blend at 80°C, and vacuum Keep it at 0.05MPa, dehydration and blend for 50 minutes; then add 1.5 parts of the catalyst chloroplatinic acid-isopropanol (Pt conte...

Example Embodiment

[0041] Example 3:

[0042] Add 80 parts of vinyl silicone oil, 100 parts of MQ silicone resin, 150 parts of aluminum nitride, and 100 parts of aluminum nitride to vacuum kneading with a viscosity of 5000 mPa·s and a vinyl content of 0.4% in a 500L kneader. In the machine, blend at 120℃, keep the vacuum degree at 0.07MPa, dehydrate and blend for 100 minutes; then add 2 parts of hydrogen-containing silicone oil with a viscosity of 200mPa·s and a hydrogen content of 1% by mass. 1.2 parts of methyl butynyloxy) silane was added to a mechanical mixer and blended for 30 minutes at room temperature to obtain glue A;

[0043] Add 90 parts of vinyl silicone oil with a viscosity of 2500 mPa·s and a vinyl content of 0.58% by mass, 50 parts of quartz powder and 50 parts of boron nitride to the vacuum kneader, blend at 120°C, and maintain the vacuum Dehydrate and blend for 100 minutes at -0.1MPa; then add 0.5 part of the catalyst chloroplatinic acid-divinyltetramethyldisiloxane (Pt content 8‰),...

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PUM

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Abstract

The invention relates to the technical field of organic silicone rubber, and aims to solve the problems of poor liquidity and heat-conducting property of an existing silicone rubber electronic casting glue. The invention provides a heat-conducting silicone rubber electronic casting glue and a preparation method thereof. The casting glue is prepared by mixing a glue A and a glue B, has excellent weather resistance, heat resistance, ozone resistance, high heat-conducting property and excellent flow properties, and is used for sealing of lithium battery materials.

Description

Technical field [0001] The present invention involves the field of organic silicon rubber technology, which specifically says an additional silicon rubber electronic irrigation and preparation method for the addition of an addition in the field of lithium battery. Background technique [0002] With the development of science and technology, electronic components and logical circuits tend to be intensive and miniaturized, so they put forward higher requirements for the stability of electrical appliances.In order to prevent the invasion of electronic components in water and dust harmful gases, slowing vibration, preventing external force damage and stable component parameters, minimizing the abnormal effects of the outside world, and electronic components need to be seized.Because of its excellent physical chemical properties and process characteristics, Silicon Rubber has become the first choice for the foundation gel in sealing glue. If you add high thermal fillers, you can get t...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/05C08K13/02C08K3/36C08K3/22C08K3/34C08K3/38C08K3/28H01M2/08H01M50/195H01M50/198
CPCY02E60/10
Inventor 张飞豹倪勇蒋剑雄吴连斌唐德铭刘峰方周兰毛文瑛
Owner HANGZHOU SILICONE WAY TECH
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