基于热致相分离基本原理,通过熔融共混聚偏氟乙烯/CaCO3/邻苯二甲酸二丁酯三元体系,制备了聚偏氟乙烯膜.考察了稀释剂和CaCO3含量对膜微观结构及拉伸强度的影响,以及CaCO3含量对聚偏氟乙烯结晶温度、结晶度的影响.结果显示,稀释剂和CaCO3含量对膜微观结构和拉伸强度影响显著;而CaCO3含量虽然对共混体系结晶度影响不太明显,但是对其结晶温度有较为显著的影响.
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