Highly heat-conducting insulation engineering plastic and preparation method thereof
A technology of engineering plastics and thermal insulation, applied in organic insulators, heat exchange materials, chemical instruments and methods, etc., can solve the problems of poor corrosion resistance of metal materials, low thermal conductivity of thermally conductive materials, and decreased mechanical properties of materials, etc. The effect of increasing mechanical properties and thermal conductivity, high thermal conductivity, and increasing mechanical properties
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Embodiment 1
[0029] Raw material formula (g)
[0030] Polyphenylene sulfide 500
[0031] Aluminum nitride 400
[0032] Silicon carbide fiber 100
[0033] Styrene grafted maleic anhydride 25
[0034] EPDM grafted maleic anhydride 25
[0035] Fiberglass 20
[0036] Stearic acid 15
[0037] Antioxidant 1098 2.5
[0038] First dry the polyphenylene sulfide, aluminum nitride, and silicon carbide fibers in the above formula in a blast drying oven at 80°C for 5 hours, then mix the weighed raw materials in a high-speed mixer, and mix the uniform The raw materials are mixed in the internal mixer for 15 minutes, and then transferred to the hopper of the twin-screw extruder. The fibers are added from the fiberizing port, melted, extruded, and pelletized at about 260°C to obtain thermally conductive and insulating plastics that can be injection molded. The injection pressure was 165 bar and the injection time was 1.2 seconds.
[0039] The thermally conductive plastic was injection molded to pr...
Embodiment 2
[0041] Raw material formula (g)
[0042] Polyphenylene sulfide 300
[0044] carbon fiber 100
[0045] Styrene grafted maleic anhydride 30
[0046] EPDM grafted maleic anhydride 28
[0047] Fiberglass 28
[0048] Stearic acid 25
[0049] Antioxidant 1098 3.5
[0050] First dry the polyphenylene sulfide, boron nitride, and carbon fiber in the above formula in a blast drying oven at 80°C for 5 hours, then mix the weighed raw materials in a high-speed mixer, and put the uniformly mixed raw materials in the Mix in the internal mixer for 15 minutes, then transfer to the hopper of the twin-screw extruder, add the fibers from the fiberizing port, melt, extrude, and pelletize at about 260°C to obtain thermally conductive and insulating plastics that can be injection molded. It is 165bar and the injection time is 1.2 seconds.
[0051] The plastic is injection molded into a heat-conducting plastic part. The thermal conductivity of the heat-conducting pl...
Embodiment 3
[0053] Raw material formula (g)
[0054] Polycarbonate 500
[0056] Alumina fiber 150
[0057] Polypropylene grafted maleic anhydride 25
[0058] EPDM grafted maleic anhydride 25
[0059] carbon fiber 20
[0060] Stearic acid 20
[0061] Antioxidant 168 2.0
[0062] First dry the polycarbonate, silicon carbide and alumina fibers in the above formula in a blast drying oven at 90°C for 6 hours, then mix the weighed raw materials in a high-speed mixer, and mix the uniform raw materials in the Mix in the internal mixer for 15 minutes, then transfer to the hopper of the twin-screw extruder, add the fibers from the fiberizing port, melt, extrude, and pelletize at about 260°C to obtain thermally conductive and insulating plastics that can be injection molded. It is 165bar and the injection time is 1.2 seconds.
[0063]The plastic is injection molded into a thermally conductive plastic part, the thermal conductivity of the thermally conductive plas...
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