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Graphite phase-change thermal conduction silicone grease and preparation method thereof

A technology of thermal conductive silicone grease and graphite phase, which is applied in the field of graphite phase change thermal conductive silicone grease and its preparation, can solve the problems of battery sheet temperature rise, power generation efficiency reduction, and unsatisfactory heat dissipation effect, and achieve high adsorption, long life, The effect of excellent heat transfer function

Inactive Publication Date: 2012-06-20
SHANGHAI MINGYUAN NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high concentration of solar energy on small cells, the temperature of the cells rises rapidly, which in turn leads to a decrease in the power generation efficiency
At present, the industry often adopts the heat sink for passive heat dissipation, but the heat dissipation effect is not ideal under certain high temperature conditions.

Method used

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  • Graphite phase-change thermal conduction silicone grease and preparation method thereof
  • Graphite phase-change thermal conduction silicone grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 9 parts by weight of petrolatum was heated to 65°C to melt, and 1 part by weight of nanoporous graphite powder was slowly put into the melted petrolatum, and magnetically stirred for 10 minutes to obtain nanoporous graphite powder encapsulated with petrolatum.

[0034] 5 parts by weight of nanoporous graphite powder encapsulated with vaseline and 1 part by weight of simethicone were mixed on a three-roll mill for 5 minutes to obtain a paste-like high thermal conductivity filled with nanoporous graphite-based phase change materials silicone grease.

[0035] figure 1 It is a schematic diagram of the application of the high thermal conductive silicone grease of this embodiment, wherein 1 is a condenser lens, 2 is a condenser cell sheet, 3 is an insulating thermal conductive silicone grease or silica gel, and 4 is aluminum filled with the high thermal conductive silicone grease of this embodiment. Tube. The high thermal conductive silicone grease is filled in the aluminum...

Embodiment 2

[0038] 8 parts by weight of petrolatum was heated to 65°C to melt, 2 parts by weight of nanoporous graphite powder was slowly put into the melted petrolatum, and magnetically stirred for 20 minutes to obtain nanoporous graphite powder encapsulated with petrolatum.

[0039] 9 parts by weight of nanoporous graphite powder encapsulated with vaseline and 1 part by weight of benzyl silicone oil were mixed on a planetary ball mill for 10 minutes to obtain a paste-like high thermal conductivity silicon filled with nanoporous graphite-based phase change materials. fat.

[0040]

Embodiment 3

[0042] Heat 9 parts by weight of vaseline to 65°C for melting, slowly put 1 part by weight of expanded graphite powder into the molten vaseline, and stir for 20 minutes in a constant temperature water bath with stirring function to obtain expanded graphite powder encapsulated with vaseline.

[0043] A mixture of 7 parts by weight of expanded graphite powder encapsulated with vaseline and 1 part by weight of simethicone and hydroxyl silicone oil was mixed on a kneader for 20 minutes to obtain a paste-like high-quality powder filled with expanded graphite-based phase change materials. Thermal Grease.

[0044]

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Abstract

The invention discloses graphite phase-change thermal conduction silicone grease and a preparation method thereof. The preparation method comprises the steps as follows: heating and melting high-precision paraffin; adding nano porous graphite into the molten high-precision paraffin and stirring to obtain nano porous graphite encapsulated in the high-precision paraffin; and mixing the nano porous graphite encapsulated in the high-precision paraffin with organosilicon oil to obtain high thermal conductivity silicone grease taking a nano porous graphite based phase-change material as the filling material. The preparation method provided by the invention is simple and feasible; and the obtained high thermal conductivity silicone grease product has an excellent temperature reduction effect when used on light-focusing cells, can be used repeatedly, and has a relatively service life.

Description

technical field [0001] The invention relates to a graphite phase-change heat-conducting silicone grease and a preparation method thereof. [0002] Background technique [0003] The latest generation of Concentrated Photovoltaic (CPV) technology is a technology that gathers sunlight to a small battery by adding optical concentrating components, and increases the output power of the system by increasing the light intensity per unit area. This technology reduces the amount of photovoltaic materials used, increases the system output power of the system, and reduces the cost of power generation. And its maintenance cost is less than half of traditional PV. [0004] The concentrating photovoltaic module is the core component of the system, which mainly collects, gathers and converts sunlight. It is mainly composed of primary concentrating components, secondary concentrating components, solar receivers, radiators, and mechanical structural components. Since the solar energy is h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L83/07C08L83/05C08L83/06C08L83/08C08L91/06C08K7/24C08K3/04C09K5/06
Inventor 黄亮国
Owner SHANGHAI MINGYUAN NEW ENERGY TECH
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