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Talc containing polypropylene composition with excellent thermomechanical properties
Talc containing polypropylene composition with excellent thermomechanical properties
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机译:具有优异热机械性能的含滑石粉的聚丙烯组合物
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摘要
The invention pertains to a polypropylene composition consisting of: 55 to 79 wt % base polymer mix; 18 to 44.5 wt % talc; and 0.5 to 3 wt % additives based on the total weight of the polypropylene composition, the base polymer mix containing a XCU fraction and a XCS fraction and the XCU fraction being present in an amount of 91 to 98 wt % and the XCS fraction being present in an amount of 2 to 9 wt %; the base polymer mix containing a comonomer content of less than 5 wt % with respect to the base polymer mix; the talc having a d50 median particle size of 1.0 to 3.0 μm when measured according to ISO 13317-3 15 using a Sedigraph; and the composition having a MFR (230° C./2.16 kg; ISO 1133) of 1 to 10 g/10 min. a process for the production of such a polypropylene composition and article comprising said polypropylene composition.
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机译:本发明涉及一种聚丙烯组合物,其组成为:55-79wt%的基础聚合物混合物;和18至44.5 wt%的滑石;和基于聚丙烯组合物总重量的0.5至3重量%的添加剂,包含XCU级分和XCS级分的基础聚合物混合物,并且XCU级分的存在量为91至98重量%,并且存在XCS级分以2至9重量%的量;相对于基础聚合物混合物,共聚单体含量小于5wt%的基础聚合物混合物;当根据ISO 13317-3 15使用Sedigraph测量时,d50中值粒径为1.0至3.0μm的滑石;所述组合物的MFR(230℃/ 2.16kg; ISO 1133)为1〜10g / 10min。制备这种聚丙烯组合物的方法和包含所述聚丙烯组合物的制品。
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