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本发明公开了一种制备聚偏氟乙烯微孔滤膜的方法,包括如下步骤:1)将聚合物均相溶液均匀铺展于模具上浇注成型,冷却使聚偏氟乙烯结晶固化成膜;所述聚合物均相溶液含有聚偏氟乙烯和稀释剂;2)萃取膜中的稀释剂,经洗涤、干燥,得到聚偏氟乙烯微孔滤膜;其中,稀释剂为乙二醇乙醚乙酸酯或/和二乙酸甘油酯。本发明制备的聚偏氟乙烯膜,
The invention discloses a method for preparing polyvinylidene fluoride microporous membrane, which comprises the following steps: 1) uniformly spreading the homogeneous solution of the polymer in a mold, casting and cooling, so as to crystallize the polyvinylidene fluoride into a film; Said polymer homogeneous solution containing polyvinylidene fluoride and diluent; 2) extraction membrane diluent, washed and dried to obtain polyvinylidene fluoride microporous membrane; wherein the diluent is ethylene glycol ethyl ether acetic acid Ester or / and diacetin. The polyvinylidene fluoride film prepared by the invention,