High-stability aluminum-base composite heat 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., achieve good stability, improve surface properties, and shorten sintering time.
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[0012] The LED heat dissipation material in this embodiment is made of the following raw materials in parts by weight: aluminum 72, aluminum nitride 16, cryolite powder 6, cellulose 15, titanium sulfate 0.4, sodium fluorosilicate 5, graphite 10, ferrous chloride 1, lemon Acid 0.5, mineral oil 4, alum 2, sodium silicate 8, 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...
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