This standard covers the polymeric content and physical characteristics of PP (polypropylene) plastic materials for injection molding and extrusion.

这个标准涵盖用于注模和挤压成形的PP(聚丙烯)塑料材料的聚合体含量和物理性能。

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The properties of polypropylene(PP) by equal channel angular extrusion(ECAE) processing were investigated.

研究了模压成型聚丙烯（ PP）经等通道转角挤压（ ECAE）加工后的性能。

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The effect of some organic phosphates on the dynamic mechanical behavior of polypropylene (PP) was studied.

研究了有机磷酸酯成核剂对聚丙烯(PP)动态力学行为的影响。

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