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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 preparation method thereof. The heat-conducting silicone rubber has excellent weather resistance, heat resistance, Ozone resistance, high thermal conductivity and excellent flow characteristics, used for potting of lithium battery materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

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

Embodiment 2

[0038] In a 500L kneader, add 100 parts of vinyl silicone oil with a viscosity of 500 mPa·s and a mass percentage of vinyl of 1.1%, 50 parts of fumed silica, 300 parts of aluminum oxide and 50 parts of boron nitride into the vacuum kneader In the machine, blend at 150°C, keep the vacuum 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 mass percentage of hydrogen of 0.7%, 3-methyl - 0.3 parts of 1-hexynyl-3-ol and 0.2 parts of 1-ethynylcyclohexanol were added to a mechanical mixer and blended at room temperature for 45 minutes to obtain glue A;

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

Embodiment 3

[0042] Add 80 parts of vinyl silicone oil, 100 parts of MQ silicone resin, 150 parts of aluminum nitride, 100 parts of aluminum nitride, and 100 parts of aluminum nitride to the 500L kneader for vacuum kneading. In the machine, blend at 120°C, keep the vacuum at 0.07MPa, and dehydrate and blend for 100 minutes; then add 2 parts of hydrogen-containing silicone oil with a viscosity of 200mPa·s and a mass percentage of hydrogen of 1%, methyl tris( Add 1.2 parts of methylbutynyloxy)silane to a mechanical mixer and blend for 30 minutes at room temperature to obtain glue A;

[0043] Add 90 parts of vinyl silicone oil, 50 parts of quartz powder and 50 parts of boron nitride with a viscosity of 2500mPa·s and a mass percentage of vinyl of 0.58% to a vacuum kneader, blend at 120°C, and keep the vacuum At -0.1MPa, dehydrate and blend for 100 minutes; then add 0.5 parts of catalyst chloroplatinic acid-divinyltetramethyldisiloxane (Pt content 8‰), and blend for 45 minutes at room temperatu...

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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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