Expanded PP has good heat resistance, mechanical properties and degradability and so on, so it is a new kind of foam in the replacement of polystyrene foam.
指出发泡pp具有优良的耐热性、力学性能及可降解性等，是替代发泡聚苯乙烯的新型泡沫材料。
The degradations of polystyrene(PS) and the mixture of PS/polypropylene (PP) in supercritical water were studied in this article.
对聚苯乙烯（PS）和聚苯乙烯（PS）与聚丙烯（PP）的混合塑料进行了超临界水降解实验。
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