Electrical insulation thermoplastic resin composition as well as preparation method and application thereof
A thermoplastic resin, electrical insulation technology, applied in the field of electrical insulation thermoplastic resin composition and its preparation, can solve the problems of poor comprehensive performance of electrical insulation materials, inability to meet large capacity, etc., and achieve excellent mechanical properties, high consistency, and thermal expansion coefficient. low effect
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Embodiment 1
[0032] This embodiment provides an electrical insulating thermoplastic resin composition, the preparation method of which comprises the following steps:
[0033] Activation of microsilica powder: Mix 15kg of molten silica powder (with a median particle size D50 of 20um) and 1.0kg of coupling agent KH550 in a high-speed disperser at 100°C for 30min, then take it out and dry it in a blast oven at 120°C After 5h, standby;
[0034] Dry thermoplastic polyimide and linear polyphenylene sulfide in a forced air oven at 150°C for 5 hours before use;
[0035] Weigh 60 kg of dried thermoplastic polyimide and 24 kg of dried linear polyphenylene sulfide, then add the above-mentioned activated silicon micropowder to a high-speed batch mixer, and mix evenly to obtain a premix;
[0036] Add the premixed material into a twin-screw extruder, extrude and granulate, and dry the obtained granules to obtain an electrical insulating thermoplastic resin composition; wherein, the temperature of the f...
Embodiment 2
[0038] This embodiment provides an electrical insulating thermoplastic resin composition, the preparation method of which comprises the following steps:
[0039] Activation of microsilica powder: Mix 40kg of molten silica powder (with a median particle size D50 of 5um) and 1.2kg of coupling agent KH550 in a high-speed disperser at 120°C for 30min, then take it out and dry it in a blast oven at 150°C After 3h, standby;
[0040] Dry thermoplastic polyimide and linear polyphenylene sulfide in a blast oven at 120°C for 8 hours before use;
[0041] Weigh 40 kg of dried thermoplastic polyimide and 10 kg of dried linear polyphenylene sulfide, and then add the above-mentioned activated silicon micropowder to a high-speed batch mixer and mix evenly to obtain a premix;
[0042] Put the premixed material into a twin-screw extruder, extrude and granulate, and dry the obtained granules to obtain an electrical insulating thermoplastic resin composition; wherein, the temperature of the feed...
Embodiment 3
[0044] This embodiment provides an electrical insulating thermoplastic resin composition, the preparation method of which comprises the following steps:
[0045] Activation of microsilica powder: Mix 35kg of fused silica micropowder (with a median particle size D50 of 30um), 0.45kg of coupling agent KH560 and 0.4kg of coupling agent KH602 in a high-speed disperser at 110°C for 30min, then take it out and After drying in an oven at 130°C for 4 hours, set aside;
[0046] Dry thermoplastic polyimide and linear polyphenylene sulfide in a blast oven at 140°C for 6 hours before use;
[0047] Weigh 54 kg of dried thermoplastic polyimide and 30 kg of dried linear polyphenylene sulfide, and then add them to a high-speed batch mixer with the above-mentioned activated silicon micropowder, and mix them uniformly to obtain a premix;
[0048]Add the premixed material into a twin-screw extruder, extrude and granulate, and dry the obtained granules to obtain an electrical insulating thermopl...
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