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聚合物溶液黏度对PDMS／PVDF复合膜微结构及渗透汽化性能的影响 被引量：3

Effects of viscosity of polymer solution on microstrctures and pervaporation performance of PDMS /PVDF composite membrane
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摘要 采用不同黏度的聚二甲基硅氧烷(PDMS)溶液制备平板聚二甲基硅氧烷/聚偏二氟乙烯(PDMS/PVDF)复合膜,并比较膜对乙醇/水混合物的渗透汽化性能的影响。通过扫描电子显微镜(SEM)、接触角分析仪等表征手段研究聚合物溶液黏度对膜微结构的影响。结果表明:聚合物溶液黏度为90 mPa·s时制备的复合膜分离性能最佳,当进料温度为313 K时,膜对5%乙醇水溶液的通量可达761 g/(m2·h),分离因子为9.1。 A series of poly （dimethylsiloxane） （PDMS）/poly （vinylidenefluoride） （PVDF） flat composite membranes were fabricated with different viscosities of PDMS casting solution, and the prepared mem- branes were applied for pervaporation separation of ethanol/water mixtures. The effects of the viscosity of PDMS casting solution on the mierostructures of the PDMS/PVDF composite membrane were studied by scanning electron microscope （SEM） characterizations and contact angle meter. The results indicated that the composite membrane prepared with the casting solution viscosity of 90 mPa.s exhibited the best sepa- ration performance： the total flux and separation factor were achieved 761 g/（ m2. h） and 9. 1, with 5 % ethanol/water mass ratio in the feed at 313 K.
作者 赵旭红 刘公平 卫旺 刘赛男 金万勤
机构地区 南京工业大学化学化工学院材料化学工程国家重点实验室
出处 《南京工业大学学报（自然科学版）》 CAS 北大核心 2013年第5期9-12,共4页 Journal of Nanjing Tech University(Natural Science Edition)
基金 国家重点基础研究发展规划(2009CB623400) 中国博士后科学基金(2011M501221)
关键词 黏度 PDMS 复合膜 渗透汽化 viscosity PDMS composite membrane pervaporation
分类号 TQ028.8 [化学工程]
  • 相关文献

参考文献7

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二级参考文献33

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共引文献18

同被引文献35

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引证文献3

二级引证文献5

南京工业大学学报（自然科学版）
2013年 第5期

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