EFFECT OF UV/OZONE TREATMENT ON PERVAPORATION PERFORMANCE OF PDMS MEMBRANES IN SEPARATION OF ISOPROPANOL AND WATER MIXTURES

摘要：

Effect of UV-ozone treatment on the performance of isopropanol dehydration by pervaporation through the PDMS membranes was investigated. X-ray photoelectron spectrometer (XPS) and water contact angle were used to characterize the chemical compositions and hydrophilicity of the surface layer of the modified PDMS membranes. It was found that the O/Si atomic ratio of PDMS surface layer increased with increasing UV-ozone treatment time, but C/Si atomic ratio decreased with treatment time. The formation of silica like surface layer improved the selectivity of PDMS membrane.

作者: Chien-Chieh Hu Ywu-Jang Fu Kuo-Sung Liao Kueir-Rarn Lee Juin-Yih.Lai

作者单位: Graduate school of Materials Applied Technology, and Department of Chemical and Materials Engineerin Department of Biotechnology, Vanung University, Chung-Li 32023, Taiwan R&D Center for Membr.Technol.and Department of Chemical Engineering, Chung Yuan University, Chung-Li

会议类型: 国际会议

会议名称: International Symposium on Polymer Chemistry(第四届国际高分子化学学术研讨会 PC 2010)

会议地点: 苏州

会议语种:英文

页码: 419-420

在线出版日期: 2010-06-02（万方平台首次上网日期，不代表论文的发表时间）