Preparation method of high-heat-conducting polyphenylene sulfide material and prepared material
A technology of polyphenylene sulfide and polyphenylene sulfide resin, applied in the field of preparation methods and prepared materials, can solve the problem of reducing the molecular regularity and crystallinity of polyphenylene sulfide, reducing the thermal conductivity of polyphenylene sulfide resin, and destroying molecular Problems such as large conjugated structure, to achieve the effect of preventing the reduction of thermal conductivity, reducing the dosage, and low dosage
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[0037] Example 1
[0038] (1) Preparation of high crystallinity polyphenylene sulfide resin
[0039] Bake the linear polyphenylene sulfide resin at 130°C for 3 h, and set aside. Weigh 95 kg of linear polyphenylene sulfide resin, 4 kg of α,ω-bis(imidazoline nitrone nitroxide) phenyl polyether and 1 kg of β-(3,5-di-tert-butyl-4-hydroxyphenyl). ) Stearyl propionate, the linear polyphenylene sulfide resin, α, ω-bis (imidazoline nitrone nitroxide) phenyl polyether and β-(3, 5-di-tert-butyl-4- (Hydroxyphenyl) propionate n-octadecyl alcohol ester is added to the high-speed batching mixer, and the mixing is uniform. The speed of the high-speed batching mixer is 480-960 r / min and the mixing time is 3-5 min to obtain a premix.
[0040] Place the primary premix in a twin-screw machine, melt and extrude the primary pre-mix with a twin-screw machine, then cool by water, dry with hot air, and cut and pelletize with a pelletizer to obtain a polyphenylene sulfide resin with high crystallinity. Th...
Example Embodiment
[0047] Example 2
[0048] (1) Preparation of high crystallinity polyphenylene sulfide resin
[0049] Bake the linear polyphenylene sulfide resin at 130°C for 3 h, and set aside. Weigh 95 kg of linear polyphenylene sulfide resin, 4 kg of α,ω-bis(imidazoline nitrone nitroxide) phenyl polyether and 1 kg of β-(3,5-di-tert-butyl-4-hydroxyphenyl). ) Stearyl propionate, the linear polyphenylene sulfide resin, α, ω-bis (imidazoline nitrone nitroxide) phenyl polyether and β-(3, 5-di-tert-butyl-4- (Hydroxyphenyl) propionate n-octadecyl alcohol ester is added to the high-speed batching mixer, and the mixing is uniform. The speed of the high-speed batching mixer is 480-960 r / min and the mixing time is 3-5 min to obtain a premix.
[0050] Place the primary premix in a twin-screw machine, melt and extrude the primary premix through the twin-screw machine, then cool, dry, and cut and pelletize by the pelletizer to obtain a pelletized high crystallinity polyphenylene sulfide resin Among them, the...
Example Embodiment
[0058] Example 3
[0059] (1) Preparation of high crystallinity polyphenylene sulfide resin
[0060] Bake the linear polyphenylene sulfide resin at 130°C for 3 h for later use. Weigh 95 kg of linear polyphenylene sulfide resin, 4 kg of α,ω-bis(imidazoline nitrone nitroxide) phenyl polyether and 1 kg of β-(3,5-di-tert-butyl-4-hydroxyphenyl). ) Stearyl propionate, the linear polyphenylene sulfide resin, α, ω-bis (imidazoline nitrone nitroxide) phenyl polyether and β-(3, 5-di-tert-butyl-4- (Hydroxyphenyl) propionate n-octadecyl alcohol ester is added to the high-speed batching mixer, and the mixing is uniform. The speed of the high-speed batching mixer is 480-960 r / min and the mixing time is 3-5 min to obtain a premix.
[0061] The primary premix is placed in a twin-screw machine, and the primary premix is melted and extruded by a twin-screw machine, and then cooled by water, dried by hot air, and cut and granulated by a pelletizer to obtain a granular high crystallinity polystyre...
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