Aluminum-based composite heat dissipation material with low thermal impedance for LED

Abstract

The invention relates to the lamp heat dissipation materials and specifically relates to an aluminum-based composite heat dissipation material with low thermal impedance for an LED and a production method thereof. The heat dissipation material is prepared from the following materials in parts by weight: 76-78 parts of aluminum, 12-15 parts of aluminum nitride, 8-10 parts of titanium dioxide, 1-3 parts of strontium carbonate, 2-3 parts of sodium trimethylsilanolate, 4-5 parts of sodium polyacrylate, 1-3 parts of oil amine polyoxyethylene ether, 10-12 parts of organic silicon resin, 0.2-0.4 part of acetamide and 4-5 parts of auxiliaries. The heat dissipation material disclosed by the invention is integrated with advantages of components such as aluminum, aluminum nitride, organic silicon resin, and the like, and also has good heat-conducting property and insulating property; the materials are grinded and dispersed in mixed aqueous liquor of sodium polyacrylate and acetamide, so that compatibility of the materials is improved; the auxiliaries are added, so that sintering performance of the mixed materials is improved; the heat dissipation material is compact and ordered in internal structure, smooth and compact in surface, quick in heat transmission and heat dissipation, low in thermal impedance, and capable of quickly lowering the temperature of the LED lamps so as to guarantee the lamps to efficiently and stably light, and thus, service lives of the LED lamps are 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 with low thermal resistance 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 se...

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 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