Aluminum-based composite heat radiation material containing modified aluminum nitride for LED (light-emitting diode)

A technology of aluminum-based composite and heat-dissipating materials, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of cost limitation, insufficient insulation performance, etc., and achieve the effect of improving compatibility, prolonging service life, and smooth surface

Inactive Publication Date: 2014-11-19
QINGDAO R & D INST XIAN JIAOTONG UNIV
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Problems solved by technology

Existing LED heat dissipation materials are mainly made of metal materials such as aluminum and copper. In actual use, there are disadvantages such as cost limitations and insufficient insulation performance. Therefore, it is necessary to improve the formula of the material to achieve a better heat dissipation effect. , improve the performance of the lamps and prolong the service life

Method used

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Embodiment

[0011] The LED heat dissipation material in this embodiment is made of the following raw materials in parts by weight: aluminum 72, aluminum nitride 16, aluminum nitrate 3, rosin 5, methyltrimethoxysilane 5, zinc oxide 10, aluminum hydroxide 9, sodium phosphate 2, Aluminum phosphate 3, glycerin 8, Pingpingjia 3, additives 5.

[0012] The auxiliary agent is made of the following raw materials in parts by weight: 6 tung oil, 2 phenyl silicone oil, 5 zinc oxide nanowires, 2 silver nitrate, 8 carbon nanotubes, and 10 fine silica airgel. The preparation method is as follows: Dissolve silver nitrate in an appropriate amount of water to prepare an aqueous solution with a concentration of 7.2%, and put zinc oxide nanowires, carbon nanotubes, and fine silica airgel into the solution, stir and disperse evenly, let stand for 8 hours, and then dry , The resulting material is then mixed with other remaining ingredients, stirred and dispersed for 3 hours, then concentrated and dried, and gr...

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Abstract

The invention relates to a lamp heat radiation material and specifically relates to an aluminum-based composite heat radiation material containing modified aluminum nitride for an LED (light-emitting diode) and a production method thereof. The heat radiation material is prepared from the following raw materials in parts by weight: 68-74 parts of aluminum, 15-17 parts of aluminum nitride, 1-3 parts of aluminum nitrate, 3-5 parts of rosin, 4-5 parts of methyl trimethoxysilane, 10-12 parts of zinc oxide, 8-9 parts of aluminum hydroxide, 1-2 parts of sodium phosphate, 2-3 parts of aluminum phosphate, 6-9 parts of glycerin, 1-3 parts of peregal and 4-5 parts of additives. The heat radiation material provided by the invention integrates the advantages of aluminum, aluminum nitride, zinc oxide and other components, combines good heat conduction and insulation performances, utilizes methyl trimethoxysilane and glycerin to perform surface modification on aluminum nitride powder, and combines with rosin, additives and other components to enable the composite material to obtain good heat radiation performance, improve sintering effect and shorten sintering time. The heat radiation material prepared according to the invention has the advantages of dense structure, smooth surface, high heat conduction coefficient, good heat insulation and durability and can effectively protect an LED lamp and greatly prolong the service life of the lamp.

Description

technical field [0001] The invention relates to a heat dissipation material for lamps, in particular to an aluminum-based composite heat dissipation material containing modified aluminum nitride for LEDs and a production method thereof. Background technique [0002] LED is called the fourth-generation light source, which has the advantages of energy saving, environmental protection, safety, low energy consumption, and high brightness. It is widely used in daily life. The heat dissipation performance of the LED lamp itself is very important, which directly affects the service life of the lamp. and lighting effects. Existing LED heat dissipation materials are mainly made of metal materials such as aluminum and copper. In actual use, there are disadvantages such as cost limitations and insufficient insulation performance. Therefore, it is necessary to improve the formula of the material to achieve a better heat dissipation effect. , Improve the performance of lamps and prolong...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/05C09K5/14
Inventor 肖宪书文庆华张俊
Owner QINGDAO R & D INST XIAN JIAOTONG UNIV
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