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OALib Journal期刊
ISSN: 2333-9721
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PLA/PBS/DCP反应共混体系的结晶行为研究
DOI: 10.3724/SP.J.1105.2012.12045, PP. 694-697
Keywords: 聚乳酸,反应共混,结晶行为
Abstract:
通过熔融共混法制备了一系列聚乳酸(PLA)/聚丁二酸丁二醇酯(PBS)物理共混试样及PLA/PBS/过氧化二异丙苯(DCP)反应共混试样,采用示差扫描量热分析(DSC)法研究了物理共混试样结晶行为及反应共混试样的特殊结晶行为.结果发现,PLA与PBS的物理共混并未改善PLA的结晶性,而PLA/PBS/DCP反应共混时生成的交联/支化结构可起到异相成核作用,从而明显改善了反应共混体系的结晶性能,且随着DCP含量的增加,共混体系中两相结晶行为出现交替变化.
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