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增容剂对EVM/PLA阻尼材料相容性的影响

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  • Key Words:乙烯醋酸乙烯酯橡胶;;聚乳酸;;相容性

  • Abstract:采用过氧化二异丙苯(DCP)为交联剂,三聚异氰酸三烯丙酯(TAIC)为助交联剂,使用动态粘弹谱仪(DMA)对乙烯醋酸乙烯酯橡胶(EVM)/聚乳酸(PLA)阻尼材料的相容性进行了研究。考察了氯化聚乙烯(CPE,氯质量分数35%)、丁二烯-丙烯腈-甲基丙烯酸缩水甘油酯三元共聚物(NBR-GMA,GMA质量分数约为5%)两种增容剂对相容性和力学性能的影响。结果表明,当CPE和NBR-GMA用量分别为10份时,共混物相容性较好,CPE增容效果较优。加入CPE,能促进PLA在EVM/PLA共混物中的异相成核结晶。加入两种增容剂使材料的拉伸性能稍有降低,但撕裂性能有所提高,拉伸永久变形降低,用量为10份时,综合力学性能较好。

  • Volume:v.35;No.209

  • Issue:05

  • Translation or Not:no

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