A kind of preparation method of heat conduction insulation silicone grease
A technology of heat conduction insulation and silicone grease, which is applied in the field of preparation of heat conduction insulation silicone grease, can solve the problems that the insulation performance and thermal conductivity cannot be further improved, and achieve the effects of improved thermal conductivity, improved insulation and good thermal conductivity
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example 1
[0026] Mix nano-silicon nitride and nano-aluminum nitride in a beaker at a mass ratio of 2:1, and add ethanol 6 times the mass of nano-silicon nitride and silane coupling agent KH- 570, after adjusting the pH of the material in the pH beaker to 10.0 with a sodium hydroxide solution with a mass fraction of 10%, stir and mix for 4 hours at a temperature of 65°C and a speed of 400r / min, and at a frequency of 55kHz After ultrasonic dispersion for 20 minutes, the material in the beaker was dried for 4 hours at a temperature of 130°C to obtain a pretreated thermally conductive powder; carbon nanotubes and absolute ethanol were mixed at a mass ratio of 1:320, and the frequency was 55kHz After ultrasonic dispersion for 30 minutes under the condition of 18%, the pH of the mixture of carbon nanotubes and absolute ethanol was adjusted to 10 with a mass fraction of 18% potassium hydroxide solution, and the reaction was stirred at a temperature of 90°C and a speed of 400r / min. After 9 hour...
example 2
[0028] Mix nano-silicon nitride and nano-aluminum nitride in a beaker at a mass ratio of 2:1, and add ethanol 6 times the mass of nano-silicon nitride and silane coupling agent KH- 570, after adjusting the pH of the material in the pH beaker to 10.0 with a sodium hydroxide solution with a mass fraction of 10%, stir and mix for 4 hours at a temperature of 65°C and a speed of 400r / min, and at a frequency of 55kHz After ultrasonic dispersion for 20 minutes, the material in the beaker was dried for 4 hours at a temperature of 130°C to obtain a pretreated thermally conductive powder; carbon nanotubes and absolute ethanol were mixed at a mass ratio of 1:320, and the frequency was 55kHz After ultrasonic dispersion for 30 minutes under the condition of 18%, the pH of the mixture of carbon nanotubes and absolute ethanol was adjusted to 10 with a mass fraction of 18% potassium hydroxide solution, and the reaction was stirred at a temperature of 90°C and a speed of 400r / min. After 9 hour...
example 3
[0030]Mix nano-silicon nitride and nano-aluminum nitride in a beaker at a mass ratio of 2:1, and add ethanol 6 times the mass of nano-silicon nitride and silane coupling agent KH- 570, after adjusting the pH of the material in the pH beaker to 10.0 with a sodium hydroxide solution with a mass fraction of 10%, stir and mix for 4 hours at a temperature of 65°C and a speed of 400r / min, and at a frequency of 55kHz After ultrasonic dispersion for 20 minutes, the material in the beaker was dried for 4 hours at a temperature of 130°C to obtain a pretreated thermally conductive powder; carbon nanotubes and absolute ethanol were mixed at a mass ratio of 1:320, and the frequency was 55kHz After ultrasonic dispersion for 30 minutes under the condition of 18%, the pH of the mixture of carbon nanotubes and absolute ethanol was adjusted to 10 with a mass fraction of 18% potassium hydroxide solution, and the reaction was stirred at a temperature of 90°C and a speed of 400r / min. After 9 hours...
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Abstract
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