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Rubber modified phase change heat conduction interface material and preparation method

A technology of phase change heat conduction and interface materials, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve problems such as difficult to use, unable to meet users' high-speed production efficiency, damage, etc., to achieve convenient use, excellent thermal conductivity, The effect of low thermal resistance

Inactive Publication Date: 2016-03-30
SHENZHEN DARBOND INTERFACE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing phase-change thermal interface materials are difficult to use, and are prone to damage when peeled off from the release film, which cannot meet the high-speed production efficiency requirements of users.

Method used

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  • Rubber modified phase change heat conduction interface material and preparation method
  • Rubber modified phase change heat conduction interface material and preparation method
  • Rubber modified phase change heat conduction interface material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A rubber-modified phase-change thermal interface material, comprising the following raw materials by weight:

[0034]

[0035] A method for preparing a rubber-modified phase-change thermal interface material, comprising the steps of:

[0036] (1) Weigh 65g of No. 58 paraffin-based phase change resin, 24g of LCY9552U synthetic SEBS rubber, 50g of C8010 tackifying resin, and 1g of antioxidant 1076. After mixing evenly, heat up to 70°C and stir for 30-45 minutes , to obtain paste;

[0037] (2) Weigh 30g of γ-methacryloxypropyltrimethoxysilane (coupling agent) coupling agent, add it to the paste obtained in step (1), stir for 15 minutes, until the coupling agent The coupling agent is completely dissolved to obtain mixture A;

[0038] (3) Raise the temperature to 120°C, weigh 830g of spherical heat-conducting aluminum powder particles with D50=2-3μm, slowly add it to the mixture A obtained in step (3), stir for 60-90 minutes, and after mixing evenly, vacuum After defoa...

Embodiment 2

[0040] A rubber-modified phase-change thermal interface material, comprising the following raw materials by weight:

[0041]

[0042] A rubber-modified phase-change thermal interface material, comprising the steps of:

[0043] (1) Weigh the following raw materials: No. 58 paraffin-based phase change resin 35g, beeswax 40g, LY9552U modified rubber 24g, C8010 tackifying resin 50g, E5400 tackifying resin 30g, 1010 antioxidant 1g, isopropyl 20g of trioleic acyloxy titanate coupling agent, 800g of spherical aluminum powder heat-conducting particles;

[0044](2) heating up the basic phase-change resin, modified rubber, tackifying resin, and antioxidant weighed in step (1) to 70° C., mixing evenly, and stirring for 30 to 45 minutes to obtain a paste;

[0045] (3) Add the coupling agent weighed in step (1) to the paste obtained in step (2), and stir for ≥10 minutes until the coupling agent is completely dissolved to obtain mixture A;

[0046] (4) Raise the temperature to 120°C, t...

Embodiment 3

[0048] A rubber-modified phase-change thermal interface material, comprising the following raw materials by weight:

[0049]

[0050] A method for preparing a rubber-modified phase-change thermal interface material, comprising the steps of:

[0051] (1) Weigh the following raw materials: 55g of microcrystalline wax 5788 basic phase change resin, 45g of LY9552U modified rubber, 80g of C8010 tackifying resin, 1g of 1010 antioxidant, bis(dioctyloxypyrophosphate) ethyl 20g of titanate coupling agent, 799g of spherical aluminum powder heat conducting particles;

[0052] (2) heating up the basic phase-change resin, modified rubber, tackifying resin, and antioxidant weighed in step (1) to 70° C., mixing evenly, and stirring for 30 to 45 minutes to obtain a paste;

[0053] (3) Add the coupling agent weighed in step (1) to the paste obtained in step (2), and stir for ≥10 minutes until the coupling agent is completely dissolved to obtain mixture A;

[0054] (4) Raise the temperatur...

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Abstract

The invention discloses a rubber modified phase change heat conduction interface material and a preparation method, and belongs to the technical field of thermal interface materials. The rubber modified phase change heat conduction interface material is prepared from, by weight, 3-10% of basic phase change resin, 1-5% of synthetic rubber, 5-10% of tackifying resin, 0-1% of antioxidant, 0-5% of coupling agent and 69-85% of heat conduction particles. The phase change heat conduction material is especially designed for application with requirements for excellent heat conduction and longer working life; by means of reasonable formula optimization and raw material selection, excellent heat conduction performance can be achieved, and use effectiveness during longer time and reliability under special use conditions can be achieved.

Description

technical field [0001] The invention relates to a rubber-modified phase-change heat-conducting interface material and a preparation method thereof, belonging to the technical field of thermal interface materials. Background technique [0002] With the vigorous development of electronic technology in the 21st century, the heat density of various electronic components is getting higher and higher, and the heat dissipation problem has become a crucial consideration in the design of electronic products. [0003] The application principle of thermal interface materials is mainly: under the application conditions of power components in integrated circuits, heat will be generated, and the effective release of excess heat to the external environment is the most critical issue in the semiconductor and electronic packaging industries, and it is also the most critical issue that limits integrated circuit design. A technology node for miniaturization, multi-function, multi-performance a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06
CPCC09K5/06
Inventor 邓志军万炜涛陈田安
Owner SHENZHEN DARBOND INTERFACE MATERIALS
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