Novel high performance heat sink material
A heat sink material, high-performance technology, used in electrical components, electrical solid devices, circuits, etc., can solve the problems of insufficient bonding between the wrapping layer and the substrate, poor mechanical properties, poor insulation, affecting thermal conductivity, etc., to achieve good mechanical properties. performance, excellent insulation, low thermal conductivity
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[0070] The preparation method of the novel high-performance heat sink material comprises the following steps:
[0071] S1: the preparation of the matrix, including the following steps:
[0072] S11: Dissolve calcium phosphate and zirconia sol in water that is 6-8 times the total mass fraction, then add cellulose, soak for 6-7 hours, and then dry at 68-72°C until the water content is ≤8%. To obtain mixture I, mix and grind mixture I and dimethyl itaconate for 3-6 hours to obtain mixture II;
[0073] S12: Add graphite, yttrium oxide, aluminum nitride, silicon carbide, carbon nanotubes, silicon dioxide, bentonite, vanadium oxide, light calcium, binder, coupling agent, compatibilizer, antioxidant, stabilizer, Bridging agent, regulator, strengthening agent, coagulant, toughening agent, stabilizer, terminator, 300-500 parts of water, microwave power 100-300W, temperature 650-700°C, speed 100-400r / Stir for 3-6 hours at 1 min, and then dry the resultant until the water content is ≤...
Embodiment 1
[0088] A new type of high-performance heat sink material, made of the following raw materials by weight: 220 parts of the base, 12 parts of the wrapping layer;
[0089] The matrix is made of the following raw materials in units of weight: 65 parts of graphite, 8 parts of yttrium oxide, 10 parts of aluminum nitride, 12 parts of silicon carbide, 6 parts of carbon nanotubes, 8 parts of silicon dioxide, and 3 parts of bentonite , 1.5 parts of vanadium oxide, 2.5 parts of calcium phosphate, 5 parts of zirconia sol, 4 parts of light calcium, 12 parts of cellulose, 4 parts of dimethyl itaconate, 9 parts of binder, 1.5 parts of coupling agent, 1.5 parts of compatibilizer, 1.2 parts of antioxidant, 1.2 parts of stabilizer, 0.9 parts of bridging agent, 0.7 parts of regulator, 0.5 parts of strengthening agent, 0.5 parts of coagulant, 0.3 parts of toughening agent, 0.3 parts of stabilizer, termination 0.2 part of dose;
[0090] The coupling agent is an epoxy silane coupling agent;
[...
Embodiment 2
[0126] A new type of high-performance heat sink material, made of the following raw materials in units of weight: 156 parts of the base, 9 parts of the wrapping layer;
[0127] The matrix is made of the following raw materials in units of weight: 52 parts of graphite, 6 parts of yttrium oxide, 8 parts of aluminum nitride, 10 parts of silicon carbide, 4 parts of carbon nanotubes, 5 parts of silicon dioxide, and 2 parts of bentonite , 1 part of vanadium oxide, 2 parts of calcium phosphate, 4 parts of zirconia sol, 3 parts of light calcium, 9 parts of cellulose, 3 parts of dimethyl itaconate, 5 parts of binder, 1 part of coupling agent, 1 part of compatibilizer, 0.8 part of antioxidant, 0.8 part of stabilizer, 0.6 part of bridging agent, 0.5 part of regulator, 0.4 part of strengthening agent, 0.4 part of coagulant, 0.2 part of toughening agent, 0.2 part of stabilizer, termination 0.1 part of dose;
[0128] The coupling agent is an epoxy silane coupling agent;
[0129] Describ...
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