研究了不同共聚聚丙烯(PP-C)对超高分子量聚乙烯(UHMWPE)/均聚聚丙烯(PP-H)体系的增容作用,考察了UHMWPE/PP-H和UHMWPE/PP-B(嵌段共聚PP)体系的流变和力学性能.结果表明,加入分子量较大的PP-B(EPS30R)能提高UHMWPE/PP-H体系的力学性能且不影响其加工性,UHMWPE/EPS30R体系的力学性能优于UHMWPE/PP-H.扫描电镜(SEM)和动态力学分析(DMA)结果表明,EPS30R改善了UHMWPE/PP-H体系的相容性,UHMWPE/EPS30R体系的相容性优于UHMWPE/PP-H.
参考文献
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