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Low-trailing heat conductive silicone grease composition and preparation method thereof

A heat-conducting silicone grease and composition technology, applied in chemical instruments and methods, heat exchange materials, etc., can solve the problems of easily polluting surrounding objects, failure to use normally, drawing and tailing, etc., and achieve the effect of facilitating automatic sizing

Inactive Publication Date: 2012-07-11
BEIJING HYSTIC NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary thermal conductive silicone grease has serious wire drawing and smearing, and it is easy to contaminate surrounding objects when it is used. Especially on automatic sizing equipment, the serious smearing phenomenon makes it unable to be used normally.

Method used

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  • Low-trailing heat conductive silicone grease composition and preparation method thereof
  • Low-trailing heat conductive silicone grease composition and preparation method thereof
  • Low-trailing heat conductive silicone grease composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Purchase and use the following products

[0046] A1 methyl silicone oil 1000cps

[0047] A2 methyl silicone oil 100cps

[0048] B1 alumina 10um

[0049] B2 alumina 1um

[0050] B3 aluminum nitride 2um

[0051] B4 spherical aluminum powder 10um

[0052] C1 Zinc Oxide 40nm

[0053] C2 nano alumina 200nm

[0054] C3 fumed silica 20nm

[0055] D Antiaging agent 1010A

[0056] The above-mentioned raw materials were used to produce a silicone grease mixture according to the aforementioned production process, and its thermal conductivity and tailing performance were measured.

[0057]

[0058]

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PUM

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Abstract

The invention relates to a low-trailing heat conductive silicone grease composition and a preparation method thereof. The low-trailing heat conductive silicone grease composition consists of the following components in part by weight: 3 to 35 parts of polysiloxane, 0 to 90 parts of heat conductive filler, 1 to 75 parts of thixotropic filler and 0 to 1.5 parts of other additives. The low-trailing heat conductive silicone grease is prepared from the specific type of polysiloxane, the heat conductive filler and the additives in an appropriate formula ratio by a specific process; and the heat conductivity and other properties of the heat conductive silicone grease are the same as those of the universal heat conductive silicone grease in the market, and the heat conductive silicone grease has low wire drawing trailing property, and has the advantages of no pollution and contribution to automatic sizing when used in the process.

Description

technical field [0001] The technical field of polymer material design of the present invention, especially relates to a low-tailing thermally conductive silicone grease composition Background technique [0002] Due to the increase in the power of electronic appliances, there is an increasing demand for heat dissipation. A variety of thermal interface materials have been developed and applied to reduce the thermal resistance between the heat sink and the heat source. Thermally conductive silicone grease is one of them, and it is widely used because of its advantages of convenient use, good thermal conductivity, and easy repair. The commonly used thermal conductive silicone grease is to add thermal conductive fillers to polyorganosiloxane of appropriate viscosity, and add additives to improve performance. By choosing different thermally conductive fillers and additives, silicone grease can obtain adjustable thermal conductivity to meet different requirements. However, ordina...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C09K5/14C08K13/02C08K3/22C08K3/36C08K3/28C08K3/08
Inventor 闵长春
Owner BEIJING HYSTIC NEW MATERIALS
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