摘要
采用溶剂挥发法并以N,N二甲基甲酰胺为溶剂制备出聚偏氟乙烯-六氟丙烯(PVDF-HFP)/二氧化钛(TiO_2)聚合物微孔膜。通过对微孔膜的红外光谱、吸液率、力学性能及热重性能的测试分析,结果表明TiO_2含量为15%的微孔膜的吸液率为190%,拉力为46 N,断裂延伸率为130%,分解温度为250℃。可以满足锂离子电池的商业使用要求,具有广阔的应用前景。
The polymer microporous film of polyvinylidene fluoride -hexafluoropropylene（ PVDF -HFP）/nano titani- um dioxide （ TiO2 ） was prepared by evaporation method in the solvent of N, N - dimethyl formamide. The structures and thermal properties of separator were characterized by IR spectroscopic, TG. The absorption rate and mechanical properties of the PVDF/poly（ AN- co- PEGDMA） microporous membranes were tested. The results showed that the TiO2 additive amount heavily affected characterization of modified PVDF - HFP microporous membranes. When the TiO2 additive amount TiO2 was 15% , the microporous membranes had great application value in lithium - ion battery.
出处
《广州化工》
CAS
2013年第6期92-94,共3页
GuangZhou Chemical Industry
基金
山西省自然科学基金(No.2011011022-4)
山西省高等学校大学生创新创业训练项目资助
关键词
聚偏氟乙烯-六氟丙烯
二氧化钛(TiO2)
微孔膜
polyvinylidene fluoride - hexafluoropropylene （ PVDF - HFP）
nano titanium dioxide （ TiO2 ）
microporous membrane
