Halogen-free warp-resistant PBT of excellent electrical properties and preparing technique thereof
A technology with high electrical performance and anti-warping, applied in the field of organic polymer composite materials, can solve problems such as complex structure design, achieve convenient production and procurement, increase anti-warping deformation and high electrical performance, and improve overall competitiveness
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[0009] Embodiment 1, a halogen-free anti-warping deformation high electrical performance PBT raw material of the present invention is composed of the following components by weight ratio, PBT: 49.1%, SMA: 1.5%; halogen-free mica microchips: 30%; halogen-free Glass beads: 15%: toughening agent: 3%; coupling agent: 0.2%; other additives: 1.2%;
[0010] First dry the PBT, preheat the halogen-free mica microchips at 55 degrees, then weigh the dried PBT, SMA, halogen-free glass beads, toughening agent, coupling agent, and other additives in proportion Mix at medium and low speed in the mixer for 10 minutes. The mixer adopts low-speed mixing. The gap between the mixing blade and the cylinder wall should be less than 0.5 cm. The mixing effect of raw and auxiliary materials should be visually observed that the various particles and powders are basically uniform, and there are no obvious agglomerates or agglomerations; The screw extruder uses a 36 aspect ratio, medium strength shearing...
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