利用示差扫描量热法(DSC)研究偏氟乙烯-六氟丙烯(PVDF-HFP)共聚物溶剂成膜前后的非等温结晶动力学,结果表明,PVDF-HFP共聚物的结晶对降温速率有一定的依赖关系,成膜后的共聚物与成膜前的共聚物对比发现,成膜后的共聚物的结晶温度升高,结晶速率加快,结晶时间t1/2缩短.用Jeziomy法处理非等温结晶过程较理想.Jeziomy法求出的结晶指数n的值在3～4之间,成膜前后的结晶速率常数kc影响较小.n和kc随降温速度的增大而增大,并且成膜后的共聚物的n和kc大于加工前的树脂的n和kc.Kissinger方法计算的PVDF-HFP共聚物成膜前后的结晶活化能分别为119.97kJ/mol和168.29kJ/mol.
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