Low warpage polyester polyketone composite material and production method thereof
A composite material, low warpage technology, applied in low warpage polyester polyketone composite material and its production field, can solve problems such as performance gap, achieve high glow wire performance, good fluidity, high heat resistance and mechanical properties performance effect
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[0013] First, polyethylene terephthalate (PET) was dried at 130° C. for 6 hours, and poured into a weight loss scale. Next, dry the aliphatic polyketone at 100°C for 6 hours, pour the dried aliphatic polyketone and other additives into a high-speed mixer, stir at a low speed, mix well, pour it into a weight loss scale, and then pass it through a twin-screw extruder Mix and extrude. Shaped glass fibers are forced into Zone 7 via side feed. The blending temperature is 265-280°C, the screw speed is 350r / min, and the product is extruded, water-cooled, and pelletized. The produced material was dried at 130°C for 4 hours, and then standard mechanical property test specimens were prepared on an injection molding machine. The injection pressure is 60-90Mpa, the barrel temperature is 245-260°C, the mold temperature is 80°C, and the injection cycle is 40s. The raw material proportioning (mass percentage) of specific embodiment 1-5 is shown in Table 1:
[0014] Table I
[0015]
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