特种橡胶制品 |
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氟橡胶与聚偏氟乙烯并用研究 黄源璐 倪海鹰 杨伟 陈军 摘 要:研究了聚偏氟乙烯对氟橡胶力学性能、动态力学性能和形态结构的影响.随着聚偏氟乙烯含量的增加,氟橡胶/聚偏氟乙烯并用胶的拉伸强度、撕裂强度、硬度、压缩永久变形随之增加,同时拉断伸长率有所下降;动态力学分析(DMA)结果表明:随着PVDF含量的增加,FKM/PVDF并用胶的储能模量在低温区域内有所减小,但在相对高温区域内有增大的趋势,FKM的Tg无明显偏移,PVDF的Tg不明显;扫描电子显微镜(SEM)结果表明:FKM/PVDF并用胶中,PVDF为分散相,FKM为连续相,分散相尺寸小于1 μm,提高PVDF含量,PVDF有转变为连续相的趋势. Study on Properties of FKM/PVDF Blending HUANG Yuan-lu NI Hai-ying YANG Wei CHEN Jun |
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收稿日期:2007年1月25日 出版日期:2007年12月31日 |