Heat-dissipation graphite powder mixed plastic material

A technology of graphite powder and plastic materials, applied in the field of plastic materials, to achieve the effects of shielding electromagnetic waves, good heat transfer coefficient, and good heat dissipation performance

Inactive Publication Date: 2011-06-15
黄柱联
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of science and technology and people's needs, more and more electronic products are used, and there are various requirements for new materials. For example, it is hoped to obtain plastics with better hea

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

Example 1

200 mesh graphite powder 400g, lithium silicate 380g, potassium silicate 214g, silane coupling agent 3g (Dow Corning Z-6011, aminopropyltriethoxysilane), titanate coupling agent 3g (U.S. DuPont TYZORAA -75, titanium acetylacetonate), the above raw materials are added to 400g of pure water, mixed uniformly, the mixed slurry is transferred to a cylindrical pipe, the pipe is rotated to the shape and solidification of the mixed slurry, stop the rotation, and take out the solidified graphite material. After natural drying at 30°C, the finished product is obtained.

Example Embodiment

Example 2

900 mesh graphite powder 450g, lithium silicate 540g, silane coupling agent 4g (Dow Corning Z-6020, N-(βaminoethane)-γ-aminopropyltriethoxysilane), titanate coupling agent 6g (JN-AT of Changzhou Jinai Auxiliary Co., Ltd., alcoholamine diethylene titanate). Add the above raw materials into 370g pure water, mix well, transfer the mixed slurry to a square column pipe, and drive the pipe to rotate until it is mixed. After the slurry is shaped and solidified, stop rotating, take out the shaped and solidified graphite material, and dry it naturally at 20°C to obtain a finished product.

Example Embodiment

Example 3

2000 mesh graphite powder 500g, lithium silicate 300g, sodium silicate 180g, silane coupling agent 9g (Dow Corning Z-6030, 3-methacrylamidopropyl-trimethoxysilane), titanate coupling agent 11g (JN-198, isopropyl alkylbenzene sulfonyl titanate of Changzhou Ji Nai Auxiliary Co., Ltd.), the above raw materials are added to 500 g of pure water, mixed evenly, and the mixed slurry is transferred to the hexagonal prism pipe to drive After the pipeline is rotated until the mixed slurry is shaped and solidified, the rotation is stopped, and the shaped and solidified graphite material is taken out, and the finished product is obtained after natural drying at 30°C.

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Abstract

The invention discloses a heat-dissipation graphite powder mixed plastic material which comprises thermoplastic or thermosetting plastics. Heat-dissipation graphite powder, which accounts for 20-60 wt%, is uniformly mixed in the thermoplastic or thermosetting plastics. Since the heat-dissipation graphite powder is added into the plastic material disclosed by the invention, the particles of the graphite powder are orderly arranged to some extent to form microchannel carbon tubes, and each heat-dissipation channel is composed of a plurality of microchannels, thereby generating the chimney effect. When being installed on the surface of a heat source, the plastic material has favorable heat-dissipation performance. When being mixed in the plastic material, the graphite powder can modify the plastic material, so that the plastic material has favorable coefficient of heat transfer, and has the effects of shielding electromagnetic waves, blocking secondary radiation and the like.

Description

A plastic material mixed with heat-dissipating graphite powder technical field The invention relates to a plastic material mixed with heat-dissipating graphite powder. Background technique With the development of science and technology and people's needs, more and more electronic products are used, and there are various requirements for new materials. For example, it is hoped to obtain plastics with better heat dissipation effects in applications, so as to realize It has the advantages of light weight, good heat dissipation effect, and easy processing. However, as far as the current situation is concerned, the existing technology is not ideal. On the other hand, for various types of electronic products, it is also hoped that new materials that can effectively prevent the influence of electromagnetic waves can be obtained. Contents of the invention In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a plastic mater...

Claims

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Application Information

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IPC IPC(8): C08L81/02C08K13/02C08L79/08C08L55/02C08L77/02C08L77/06C08L69/00C08L23/12C09K5/14C08L27/06C08L67/02C08L25/06C08K3/08C08L23/06C08K3/04C08K3/34
Inventor 黄柱联
Owner 黄柱联
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