High-dispersion graphene heat conduction plastic production method, product thereof, and application of product
A technology of heat-conducting plastics and graphene, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of unsatisfactory properties of graphene heat-conducting plastics, achieve good dispersion, no environmental pollution, and broaden the application range
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[0026] Example 1: A highly dispersed graphene thermally conductive plastic and its preparation method, consisting of the following parts by weight: 0.2 parts of antioxidant, 0.5 parts of coupling agent, 10 parts of graphene, 5 parts of thermally conductive powder additives, When preparing 85 parts of the base resin polypropylene, the graphene is first pretreated, and the graphene is immersed in a 1:5 mixed solution containing 1.5% sodium dodecyl sulfonate in water and ethanol at a volume ratio of 1:5, and treated with ultrasound and stirring for 2 hours After that, it was placed in an oven at 100°C to dry for 4 hours. The antioxidants and thermal powder additives are mixed into uniform powders, and then mixed with the graphene slurry, coupling agent, and matrix resin to be uniform, and then added to the twin-screw extruder from the main feed port for extrusion processing. The main processing temperature of the exit machine is 200℃, the main machine speed is 200rpm, the main fee...
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[0027] Example 2: A highly dispersed graphene thermally conductive plastic and its preparation method, consisting of the following parts by weight: 2 parts of antioxidant, 0.8 parts of coupling agent, 20 parts of graphene, 8 parts of thermally conductive powder additives, When preparing 70 parts of base resin polypropylene, the graphene is pretreated first, and the graphene is immersed in a 1:4 mixed solution containing 2.5% sodium dodecylbenzene sulfonate in water and ethanol at a volume ratio of 1:4, followed by ultrasonic and stirring treatment After 3h, place it in an oven at 100℃ to dry for 6h. The antioxidants and thermal powder additives are mixed into uniform powders, and then mixed with the graphene slurry, coupling agent, and matrix resin to be uniform, and then added to the twin-screw extruder from the main feed port for extrusion processing. The main processing temperature of the exit machine is 210℃, the main machine speed is 180 rpm, the main feed speed is 15 rpm,...
Example Embodiment
[0028] Example 3: A highly dispersed graphene thermally conductive plastic and its preparation method, consisting of the following parts by weight: 3 parts of antioxidant, 1 part of coupling agent, 30 parts of graphene, and 10 parts of thermally conductive powder additives, When preparing 60 parts of the base resin polypropylene, the graphene is first pretreated, and the graphene is immersed in a 1:3 mixed solution containing 3% polyvinylpyrrolidone in water and ethanol at a volume ratio of 1:3. After ultrasonic and stirring treatment for 5 hours, it is placed Dry in an oven at 100℃ for 8 hours. The antioxidants and thermal powder additives are mixed into uniform powders, then mixed with the graphene slurry, coupling agent, and matrix resin to be uniform again, and then added to the twin-screw extruder from the main feed port for extrusion processing. The main processing temperature of the exit machine is 220 ℃, the main machine speed is 220 rpm, the main feed speed is 20 rpm, ...
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