Composite graphite material and its application as heat wave conversion material

A composite graphite and heat wave technology, applied in heat exchange materials, chemical industry, chemical instruments and methods, etc., can solve problems such as low efficiency, and achieve the effects of high thermal conductivity, low cost and high speed.

Inactive Publication Date: 2015-09-16
NINGBO SINYUAN IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When metal materials are used as heat radiation sources, the heat wave conversion efficiency at room temperature is only 20%-30%, and there is a problem of low efficiency

Method used

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  • Composite graphite material and its application as heat wave conversion material
  • Composite graphite material and its application as heat wave conversion material

Examples

Experimental program
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Embodiment Construction

[0021] The present invention will be further described below in conjunction with specific embodiments.

[0022] The components and weight ratios in the following examples were selected for compression molding.

[0023]

[0024] As can be seen from the above examples, the composite graphite material of the present invention has very high heat wave conversion efficiency. When the composite graphite material is used as a heat wave conversion material, for example, when used as a heat wave conversion ceiling, compared with traditional The system has a good energy-saving effect. See figure 1 , figure 1 The schematic diagram on the left in the middle shows the temperature distribution in the vertical direction in the room when the heat wave conversion ceiling (wave spectrum system) of the present invention is used to work, and the middle schematic diagram shows the temperature distribution in the vertical direction in the room when the traditional air conditioning system is wo...

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Abstract

A composite graphite material comprises 70-100wt% of expandable graphite, 0-30wt% of a graphene-like material and 0-30wt% of carbon nanotube, wherein the bulk density of the graphene-like material is 0.15-0.3g/cm<3>, and the granularity of the graphene-like material is 50-300 meshes. The invention also relates to an application of the composite graphite material as a heat wave conversion material. The composite graphite material has a very high heat wave conversion efficiency at a low temperature of 10-50DEG C, uses the directional heat conduction performance of graphite, and also has the advantages of high heat conduction efficiency, fast speed and low cost; and the composite graphite material can realize bidirectional low temperature conversion of infrared ray wave and heat energy as a heat wave conversion material, and realizes heating and refrigeration in spaces.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a composite graphite material. In addition, the present invention also relates to the application of the composite graphite material as a thermal wave conversion material. Background technique [0002] According to the theorem of thermophysics: all objects with a temperature higher than absolute zero can produce thermal radiation; when thermal radiation is projected onto the surface of an object, three phenomena generally occur, namely absorption, reflection and penetration. The greater the heat radiation rate, the greater the proportion of the energy radiated from the surface material to the absorbed energy. [0003] As one of the three ways of heat transfer, heat radiation has advantages that conduction and convection do not have, such as no contact or medium. When metal materials are used as heat radiation sources, the heat wave conversion efficiency at r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04C09K5/14
CPCC04B35/52C04B35/536C09K5/14E04B1/74E04F13/07E04F13/0866E04F13/16Y02P20/10
Inventor 袁奕琳徐卫刚陆卓君
Owner NINGBO SINYUAN IND GRP CO LTD
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