High flow poly(phthalamide) compositions, and articles made therefrom
A technology of phthalamide and phthalimide, which is used in the field of high-fluidity poly(phthalamide) compositions and products manufactured therefrom, and can solve the problem of rough surface of products, difficult processing, etc. question
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[0070] The materials used are provided in Table 1.
[0071] Table 1
[0072]
[0073] All tests, except warpage, are based on ASTM standards (2015 test), as provided in Table 2.
[0074] Table 2
[0075]
[0076] Warpage measurement. A 1 kg weight was placed on the gate to secure the disk (135mm diameter, 1.2mm thickness) on a flat bench surface. Feeler gauges are used to measure the disc thickness at points A, B and C. Record the thickness at points A, B, and C as Warp-A, Warp-B, and Warp-C, respectively.
[0077] All examples are polymer compositions filled with mixed fillers in different ratios. Dry mix all components except glass fiber reinforced filler in a super float for 3-5 minutes. The polymer was pre-dried at 150°C for about 4 hours prior to extrusion. Glass fibers are fed downstream with a side feeder. Add the blend at the inlet. The formulations were compounded on a 37 mm Toshiba twin screw with a vacuum vented extruder at 300-350 rpm and 55-60 kg / hr...
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