Thermally conductive and insulating aluminum base compound radiating material for LED

A technology of aluminum-based composite and heat-dissipating materials, which is 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 goal of improving compatibility, improving surface properties and shortening sintering time Effect

Inactive Publication Date: 2014-10-01
YANYANG LAMP SET TIANCHANG CITY
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AI Technical Summary

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 insulatio

Method used

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Embodiment

[0012] The LED heat dissipation material in this embodiment is made of the following raw materials in parts by weight: aluminum 72, aluminum nitride 15, sillimanite 3, chlorite 2, castor oil sodium sulfonate 4, polyacrylate 10, kaolin 15, zinc oxide 10 , Trisodium Phosphate 3, Rosin Powder 4, Sodium Citrate 2, Additive 5.

[0013] The auxiliary agent is made of the following raw materials in parts by weight: polyaluminum sulfate 5, animal bone 10, sodium sand 3, polyimide 5, silver-coated copper powder 10, magnesium oxide 14, light magnesium carbonate 5, prepared The method is as follows: first calcinate the animal bone at 800-900°C for 12 hours, then cool it for later use, then dissolve polyaluminum sulfate in an appropriate amount of water to prepare an aqueous solution with a concentration of 6%, and put the calcined animal bone and other remaining ingredients into In the solution, mix and stir to disperse for 3 hours, concentrate and dry, grind to 400-mesh fine powder, and...

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Abstract

The invention relates to a radiating material of a lamp and particularly relates to a thermally conductive and insulating aluminum base compound radiating material for an LED and a production method of the radiating material. The radiating material is prepared from the following raw materials in parts by weight: 70-72 parts of aluminum, 12-15 parts of aluminum nitride, 1-3 parts of fibrolite, 2-3 parts of chlorite, 2-4 parts of sodium castor oil sulfonate, 8-10 parts of polyacrylate, 12-15 parts of kaolin, 10-11 parts of zinc oxide, 1-3 parts of trisodium phosphate, 3-4 parts of rosin powder, 1-2 parts of sodium citrate and 4-5 parts of an auxiliary. The radiating material provided by the invention integrates the advantages of components such as aluminum, aluminum nitride and kaolin and has both good thermal conductive and insulating performances. Soaked by a mixed dilute solution sodium citrate and trisodium phosphate, the radiating material is more easily compatible with metal powder. Components such as polyacrylate, rosin powder and the auxiliary can assist formation, improve the sintering effect of a blank and shorten the sintering time. The radiating material is compact in structure, insulative and safe, high in thermal conductivity coefficient, good in mechanical property and durable, and can effectively protect the LED lamp, so that the service life of the lamp is greatly prolonged.

Description

technical field [0001] The invention relates to a heat dissipation material for lamps, in particular to a thermally conductive insulating aluminum-based composite heat dissipation material 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 their...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/05C09K5/14
Inventor 郑金山朱忠平黄国仁吴有军
Owner YANYANG LAMP SET TIANCHANG CITY
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