不同结构聚丙烯的紫外光降解研究UV Light Degradation of Different Structure Polypropylene
郝丽媛;张军;
摘要(Abstract)：
研究了均聚聚丙烯(PPH)、嵌段共聚聚丙烯(PPB)、无规共聚聚丙烯(PPR)的耐紫外光性能。结果表明,这3种PP中,经过黑板温度为(65±3)℃、光强为0.51 W/m2@340nm时连续辐照400h后,PPB的耐紫外光性能较好,在体视显微镜照片中,并没有出现裂纹;PPH在紫外光辐照前后以α晶型为主,复合少量β晶型,PPB在紫外光辐照前只有α晶型,辐照后出现β晶型,然而PPR在紫外光辐照前后均只出现α晶型。
关键词(KeyWords)： 均聚聚丙烯;嵌段共聚聚丙烯;无规共聚聚丙烯;结构;耐紫外光性能;力学性能
基金项目(Foundation):
作者(Author): 郝丽媛;张军;
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DOI:
参考文献(References)：
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