Injection-moldable conductive heat-conduction modified fluoroplastic material and preparation method and application thereof
An electrical and thermal conductivity, injection molding technology, applied in the field of modified fluoroplastics, can solve the problems of poor electrical conductivity of fluoroplastics, unsatisfactory chemical resistance and weather resistance, and inferior wear resistance, chemical resistance and weather resistance to fluoroplastics, etc. To achieve the effect of good electrical and thermal conductivity, good physical and mechanical properties, and high production efficiency
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[0048] Example 1
[0049] 1. Dissolve 20.3g of nickel nitrate and 17.9g of magnesium nitrate in 100ml of absolute ethanol to prepare a mixed catalyst precursor solution, and prepare a 1:1 mixed solution of 0.7mol / L of nickel nitrate and magnesium nitrate. Coat the prepared precursor solution evenly on the copper substrate and let it dry naturally;
[0050] 2. Wrap the tin wire and place it under the substrate, and put it on the deposition table in the cavity of the DC plasma chemical vapor deposition equipment. Close the vacuum chamber and turn on the vacuum pump to vacuum. When the pump pressure is less than 0.1pa, argon and hydrogen are introduced into the vacuum chamber. The flow rates of argon and hydrogen are 4L / min and 10L / min, respectively, start the DC arc, adjust the arc current to 120A, adjust the exhaust valve and the vacuum chamber control valve to stabilize the pressure in the vacuum chamber at 3000Pa, react for 8min, and produce Ni / MgO catalyst;
[0051] 3. Under th...
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[0064] Example 2
[0065] 1. The preparation and surface treatment of modified carbon nanotubes, graphene and aluminum nitride are the same as steps 1 to 6 in Example 1.
[0066] 2. Add 15kg of non-ionized water, 3.75g of ammonium perfluorooctanoate, 75g of trifluorotrichloroethane, 5g of methanol, 3g of ammonium carbonate, and 1g of ammonia to the 35L reactor, stir well, and add 650g of modified carbon nanotubes and 650g of modified carbon nanotubes. Graphene, 575g modified aluminum nitride, stir and seal. Blow in inert gas argon to 2MPa, maintain the pressure and observe for 30min without pressure drop, evacuate to -0.08MPa.
[0067] 3. Slowly add 1.5kg of tetrafluoroethylene monomer and 45g of perfluoropropyl vinyl ether, stir and raise the temperature to 65℃, the pressure of the reactor is 1.2MPa, add 1.5g of 10% ammonium persulfate solution and 2ml of 30% peroxide Cumene neodecanoate solution, control the reaction temperature difference ±0.5℃, react for 1.5 hours, control the ...
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