提高PV C材料的加工温度或加快材料的延伸速率，均对提高PV C熔体弹性有利。
It was also found that both increasing processing temperature and extension rate were favorable to elasticity of PVC melts.
茂金属聚乙烯的分子链长支化结构对其流变特性有重要影响，长支链可以使熔体弹性和剪切变稀效应明显增强。
The molecular long chain branch structure of metallocene polyethylene has great effects on it's rheological behavior, long chain branch can significantly enhance melt elasticity and shear thinning.
通过应力场下聚丙烯熔体结晶制备出硬弹性聚丙烯中空纤维。
Hard elastic polypropylene hollow fiber were prepared from polypropylene melt crystallized under stress field.
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