高熔体强度聚丙烯（high melt strength PP ，HMS-PP）是针对上述不足开发的一 种新型聚丙烯材料，加工温度范围较宽，可用于传 统聚丙烯难以涉足的挤出发泡、涂...
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High melt strength polypropylene PP 高熔体强度聚丙烯PP
High melt strength pp (HMSPP) had excellent physical and mechanical properties and its foamed products had wide applications.
高熔体强度聚丙烯具有优异的物理机械性能，其发泡制品拥有广泛的用途。
Nevertheless foaming processing of PP is very difficult because of its high crystallinity and poor melt strength.
但由于PP的高结晶性，熔体强度低，其发泡成型较为困难。
The PP with high grafting rate can improve the melt strength and the extensional viscosity of a PP system and the strain hardening.
接枝率高的PP，可提高PP体系的熔体强度和拉伸黏度及其应变硬化。
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