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Modified forsterite-containing aluminum-based composite heat-dispersing material

A forsterite-aluminum-based composite technology, which is applied in the direction of heat exchange materials, chemical instruments and methods, can solve the problems of insufficient insulation performance and cost constraints, and achieve strong waterproof and antirust capabilities, improved sintering performance, and rapid temperature reduction. Effect

Active Publication Date: 2014-11-12
江苏南通海之升电子商务有限公司
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  • Abstract
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  • Claims
  • Application Information

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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

[0012] The LED heat dissipation material in this embodiment is made of the following raw materials in parts by weight: 82 aluminum, 18 aluminum nitride, 16 forsterite, 4 tetraethylorthosilicate, 3 maleic anhydride, 8 sodium lignosulfonate, 1 tartaric acid, and 1 tartaric acid Potassium hydrogen 5, auxiliary agent 5.

[0013] 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 7.5%, 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 ground into...

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Abstract

The invention relates to a lamp heat-dispersing material, and particularly relates to a modified forsterite-containing aluminum-based composite heat-dispersing material and a production method thereof. The heat-dispersing material is prepared from the following raw materials in parts by weight: 80-82 parts of aluminum, 15-18 parts of aluminum nitride, 16-20 parts of forsterite, 3-4 parts of tetraethyl orthosilicate, 2-3 parts of maleic anhydride, 5-8 parts of sodium lignin sulfonate, 1-2 parts of tartaric acid, 4-6 parts of potassium bitartrate and 4-5 parts of auxiliaries. The heat-dispersing material integrates the advantages of aluminum, aluminum nitride, forsterite and the like and also has the good heat-conductivity and insulating properties; after the forsterite is soaked and modified by the mixed solution of maleic anhydride, tartaric acid and potassium bitartrate, the heat-conductivity property can be improved and the modified forsterite is more easily compatible with metal powder; and through the added auxiliaries, the sintering performance of the mixed material can be improved; and the prepared heat-dispersing material is compact in structure, high in surface finishing degree, strong in waterproof and antirust capabilities, efficient and fast in heat-dispersing property, and capable of fast transmitting heat, so that the service life of a lamp can be prolonged.

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 forsterite 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 刘孝峰
Owner 江苏南通海之升电子商务有限公司
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