聚偏氟乙烯-六氟丙烯凝胶聚合物电解质膜制备工艺的优化

采用正交试验法筛选出制备聚偏氟乙烯-六氟丙烯凝胶聚合物电解质膜的最佳条件，即搅拌温度50℃、溶剂蒸发时间15min、空气相对湿度40、相转化温度40℃。实验表明，溶剂蒸发时间对凝胶聚合物电解质膜吸液率影响最显著。在最佳制膜条件下，考察了3种增塑剂，即PEG-400、DBP和PVP—K30对凝胶聚合物电解质膜吸液率的影响。研究结果表明，在本实验中，PEG-400、DBP和PVP—k30的含量为0．1g时，对应膜的吸液率分别为495％、480％和540％，说明PVP—K30是最理想的增塑剂，值得推广使用。

Optimization of Process for Preparation of Gel Polymer Electrolyte Membrane based on P(VDF-HFP)

The optimum conditions for preparing gel polymer electrolyte membrane （GPEM） based on P（ VDF - HFP） were selected by orthogonal experiment as follows：stirring temperature 50 ℃, solvent evaporation time 15 min,relative humidity 40,phase transfer temperature 40℃. The solvent evaporation time was the most significant factor among the above factors influencing the liquid absorption rate of GPEM. The effects of three plasticizers and their contents on P （ VDF - HFP） GPEM prepared under the optimum conditions were investigated. The results showed that the liquid absorption rate were 495% ,480% ,540% respectively when the content of PEG- 400, DBP,or PVP- K30 was 0.1 g. These indicated PVP- K30 was the best plasticizer among the three plasticizers and had the value of application.