Composite graphite material and application thereof serving as thermal wave transformation 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, high speed and low cost

Inactive Publication Date: 2016-08-10
NINGBO SINYUAN IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing heat radiation sources generally use metal materials, and the heat wave conversion efficiency at room temperature is only 20%-30%, which has the problem of low efficiency
And it is difficult to directly use metal materials as heat radiation and heat absorbing materials to realize wave heat conversion

Method used

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  • Composite graphite material and application thereof serving as thermal wave transformation material
  • Composite graphite material and application thereof serving as thermal wave transformation material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be further described below in conjunction with specific embodiments.

[0021] The components and weight ratios in the following examples were selected for compression molding.

[0022]

[0023] 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 left schematic diagram in the middle is the temperature distribution in the vertical direction in the room when the heat wave conversion ceiling (Popper system) of the present invention is used to work, and the middle schematic diagram is the temperature distribution in the vertical direction in the room when the traditional air-conditioning system is in operation. Compariso...

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Abstract

A composite graphite material is prepared from, by weight, 70%-100% of expandable graphite, 0-30% of a quasi-graphene material and 0-30% of carbon nanotubes, wherein multiple superfine-branch-shaped structures and gaps are formed on the surfaces of the composite graphite material through galling treatment, and the density of the composite graphite material is 0.01 g / cm<3>-1.5 g / cm<3>. The invention further relates to application of the composite graphite material in a thermal wave transformation material. The composite graphite material has the following advantages of achieving the high thermal wave transformation efficiency at low temperature (10 DEG C-50 DEG C), utilizing the directional thermal conductivity of graphite and being high in thermal conduction efficiency and speed and low in cost; the application of the composite graphite material serving as the thermal wave transformation material has the following advantages that the thermal wave transformation material achieves two-way low-temperature transformation between infrared ray waves and thermal energy and heating and refrigerating in a space.

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 laws of thermophysics, all objects with a temperature higher than absolute zero can produce thermal radiation. When heat radiation is projected on the surface of an object, the three phenomena of absorption, reflection and penetration occur. The greater the heat radiation rate, the greater the proportion of the energy radiated from the surface material to the absorbed energy. [0003] Compared with heat conduction and heat convection, heat radiation has the advantage of not needing contact and medium. Existing heat radiation sources are generally made of metal materials, and the heat wave conversion efficiency at room temperature is only 20%-30%, w...

Claims

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Application Information

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