Method for preparing composite material of heat conduction silicon rubber of carbon aluminum-wrapping composite nano filler
A heat-conducting silicone rubber and nano-filler technology, which is applied in the treatment of fibrous fillers and dyed low-molecular organic compounds, can solve the problems of reduced reliability and achieve the effect of improving thermal conductivity and excellent thermal conductivity
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Embodiment 1
[0015] (1) The pretreatment of carbon-coated aluminum nanoparticles, the silane coupling agent of 0.5 mass parts mass concentration is that the ethanol dissolving of 95% is mixed with the solution that mass concentration is 25%, and continuous stirring, after dissolving, average particle diameter Add 50 parts by mass of carbon-coated aluminum nanoparticles with a diameter of 20 to 100 nm into a silane coupling agent alcohol solution, stir, dry at 120°C for 10 hours, and then dry at 150°C for 1 hour to obtain the modified carbon-coated aluminum nanoparticles The particles are placed in a desiccator for later use.
[0016] (2) 100 mass parts of silicone rubber raw rubber is added on the roller, after the silicone rubber raw rubber wraps the roll, first add 50 mass parts of modified carbon-coated aluminum nanoparticles, then add 1 mass part of hydroxy silicone oil, Repeated kneading on the roller until uniform, thin pass 5 times, and finally add 3 parts by mass of double 2,5 vulc...
Embodiment 2
[0021] (1) The pretreatment of carbon-coated aluminum nanoparticles, the silane coupling agent of 1 mass part is dissolved in the ethanol that mass concentration is 95% and is mixed with the solution that mass concentration is 25%, and continuous stirring, after dissolving, average particle diameter Add 100 parts by mass of carbon-coated aluminum nanoparticles with a diameter of 20 to 100 nm into a silane coupling agent alcohol solution, stir, dry at 120°C for 10 hours, and then dry at 150°C for 1 hour to obtain the modified carbon-coated aluminum nanoparticles The particles are placed in a desiccator for later use.
[0022] (2) 100 mass parts of silicone rubber raw rubber is added on the roller, after the silicone rubber raw rubber wraps the roll, first add 100 mass parts of modified carbon-coated aluminum nanoparticles, then add 1.5 mass parts of hydroxy silicone oil, Repeated kneading on the roller until uniform, thin pass 8 times, and finally add 3 parts by mass of double ...
Embodiment 3
[0027] (1) the pretreatment of carbon-coated aluminum nanoparticles, the silane coupling agent of 1.5 mass parts is dissolved in the ethanol that mass concentration is 95% and is mixed with the solution that mass concentration is 25%, and continuous stirring, after dissolving, average particle diameter Add 150 parts by mass of carbon-coated aluminum nanoparticles with a diameter of 20 to 100 nm into the silane coupling agent alcohol solution, stir, dry at 120°C for 10 hours, and then dry at 150°C for 1 hour to obtain modified carbon-coated aluminum nanoparticles Put in a desiccator for later use.
[0028] (2) Add 100 parts by mass of silicone rubber raw rubber to the roller. After the raw silicone rubber is wrapped with the roller, add 150 parts by mass of modified carbon-coated aluminum nanoparticles, then add 2 parts by mass of hydroxysilicone oil. Repeatedly knead until uniform, thin pass 10 times, finally add 3 parts by mass of double 2,5 vulcanizing agent, and then knead ...
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