磁控溅射法制备CeO_2/PTFE/Nafion复合膜及性能研究  

Properties of CeO_2/PTFE/Nafion Composite Membranes Prepared by Magnetron Sputtering

作　　者：夏庆成[1] 毛霏 杨勇[1] 韩静[1] 刘晓慧[1] 杨加志[1] 孙东平[1] XIA Qingcheng MAO Fei YANG Yong HAN Jing LIU Xiaohui YANG Jiazhi SUN Dongping(School of Chemical Engineering, Nanfing University of Science and Technology, Nanfing 210094, China)

机构地区：[1]南京理工大学化工学院,南京210094

出　　处：《高等学校化学学报》2016年第11期2108-2116,共9页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:51303083;21206076)资助~~

摘　　要：采用磁控溅射法在聚四氟乙烯(PTFE)微孔膜表面溅射CeO_2,制备了CeO_2/PTFE复合膜.利用接触角、X射线光电子能谱(XPS)、扫描电子显微镜(SEM)和拉伸强度等对复合膜的亲水性、元素组成、形貌和机械强度进行测试,研究了溅射时间和溅射功率对膜性能的影响.结果表明,在溅射功率为40 W,溅射时间为120 s时,CeO_2/PTFE复合膜亲水性和拉伸强度都相对较好.在CeO_2/PTFE复合膜上浇铸Nafion树脂,制备的CeO_2/PTFE/Nafion复合膜含水率达到30%,离子电导率达到0.071 S/cm.CeO2/ PTFE composite membranes（ PTFE = polytetrafluoroethylene） were prepared by magnetron sputtering CeO2 on the surface of PTFE microporous membranes. The membranes were characterized by XPS and SEM. The properties of the membranes,such as contact angle,tensile strength were investigated. It was found that high quality CeO2/ PTFE composite membranes were obtained under the optimized magnetron sputtering： sputtering time of 120 s and magnetic sputtering power of 40 W. The CeO2/ PTFE composite membranes exhibited better comprehensive performance： favorable hydrophibility and tensile strength. In order to improve the performance of CeO2/ PTFE composite membranes,CeO2/ PTFE / Nafion composite membranes were prepared by Nafion casting. The properties of the composite membrane such as water uptake,ion conductivity were investigated. The water uptake and ion conductivity of CeO2/ PTFE / Nafion composite membranes were 30%,0. 071 S / cm,respectively.

关 键 词：聚四氟乙烯微孔膜 磁控溅射 接触角 拉伸强度 

分 类 号：O632[理学—高分子化学] O646[理学—化学]