1·Other high-gloss HDPE compounds lack sufficient parison strength for monolayer bottles and so are only used in outer layers.
其他的高光泽HDPE复合材料用于单层瓶时缺乏足够的型坯强度,因此仅仅可以作为外层使用。
2·The results showed that the swelling range of parison diameter of pp blended with higher MFR PE is wider and its parison sag is more apparent.
结果表明,聚丙烯与较高熔体流动速率的聚乙烯共混后,其型坯直径膨胀的变化范围较宽,垂伸较明显。