用层层自组装技术在锂电池用聚丙烯(PP)隔膜表面引入聚二烯丙基二甲基氯化铵(PDM)和丙烯酸-丙烯酸钠共聚物P(AA-co-AANa),获得具备良好亲水性、低热收缩率的复合隔膜.考察聚合物配比、自组装层数、温度等对隔膜表面结构和性能的影响.采用全反射傅里叶变换红外光谱和原子力显微镜分别表征膜表面组成和形貌.比较PP隔膜和复合隔膜各项测试结果发现,经自组装后,隔膜的表面水接触角可从90.6°降低至30.5°,130℃时的热收缩率由12％下降至9.4％.
参考文献
| [1] | Tabatabaei, SH;Carreau, PJ;Ajji, A .Effect of processing on the crystalline orientation, morphology, and mechanical properties of polypropylene cast films and microporous membrane formation[J].Polymer: The International Journal for the Science and Technology of Polymers,2009(17):4228-4240. |
| [2] | 杜辉,刘东,孔瑛,杨金荣.聚丙烯镍氢电池隔膜的亲水改性及性能表征[J].高分子材料科学与工程,2013(06):101-104,108. |
| [3] | Enhancement of thermal stability and cycling performance in lithium-ion cells through the use of ceramic-coated separators[J].Journal of Power Sources,2010(18):6192. |
| [4] | 邱学青,吴渊,邓永红,杨东杰,欧阳新平,易聪华.不同pH条件下木质素磺酸钠的静电逐层自组装研究[J].高分子学报,2010(06):699-704. |
| [5] | 邓慧宇,徐又一,朱宝库,魏秀珍.聚电解质层层自组装制备PV、NF膜研究进展[J].功能材料,2007(08):1217-1220. |
| [6] | Jiang, S.P.;Tang, H..Methanol crossover reduction by Nafion modification via layer-by-layer self-assembly techniques[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2012:49-57. |
| [7] | Lavalle P.;Gergely C.;Cuisinier FJG.;Decher G.;Schaaf P.;Voegel JC. Picart C. .Comparison of the structure of polyelectrolyte multilayer films exhibiting a linear and an exponential growth regime: An in situ atomic force microscopy study[J].Macromolecules,2002(11):4458-4465. |
| [8] | Changsheng Zhao;Shengqiang Nie;Min Tang .Polymeric pH-sensitive membranes—A review[J].Progress in Polymer Science,2011(11):1499-1520. |
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