The structure development and mechanical properties of blow extruded polypropylene containing beta-phase nucleating additives was studied. Quinacridone red and cadmium red were both found to nucleate the beta phase in polypropylene, the former being a much more efficient nucleator than the latter. The beta-phase spherulites formed in the presence of these nucleating agents were small and extensively volume filled, yielding high crystallinity. The modulus increased 2-3 times, elongation at break decreased, and there was a sharp break point without much yield when the beta-phase nucleating agents were added as compared to the pure alpha-phase polypropylene. (C) 1997 John Wiley & Sons, Inc. [References: 16]
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机译：研究了含β相成核剂的吹塑聚丙烯的结构发展和力学性能。人们发现喹rid啶酮红和镉红都能使聚丙烯中的β相成核，前者是比后者更有效的成核剂。在存在这些成核剂的情况下形成的β相球晶很小，并且大量填充，产生高结晶度。与纯α相聚丙烯相比，当添加β相成核剂时，模量增加了2-3倍，断裂伸长率降低，并且存在急剧的断裂点而收率不高。 （C）1997 John Wiley＆Sons，Inc. [参考：16]
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