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Effect of thermal treatment on crystallization and mechanical properties of PP/PET blend
Author(s): 
Pages: 7-11
Year: Issue:  6
Journal: CHINA SYNTHETIC RESIN AND PLASTICS

Keyword:  聚丙烯聚对苯二甲酸乙二酯热处理结晶力学性能;
Abstract: 研究了热处理对聚丙烯(PP)/聚对苯二甲酸乙二酯(PET)共混体系结晶、熔融行为及力学性能的影响.结果表明:适当地对共混体系进行热处理,可有效改善材料的拉伸性能及弯曲性能,拉伸强度及弯曲强度最大增幅分别可达13% 和33%.PP/PET共混体系力学性能的增加在于体系中聚合物结晶结构的完善、结晶度的提高以及热应力的消除, 其中, PP的结晶度变化较大,由处理前的37.1% 增加到处理后的52.1%.
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