| Influence of the Surfactants on Microstructure and the Properties of Wet Coagulation Polyurethane Film. |
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| 作者姓名： | 曾跃民 严灏景 胡金莲 |
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| 作者单位： | ZENG Yue-min，YAN Hao-jing College of Textiles，Dong Hua University，Shanghai，200051HU Jin-lian Institute of Textiles and Clothing，The Hong Kong Polytechnic University.Hung Hom，Kowloon，Hong Kong |
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| 基金项目： | TheHongKongPolytechnicUniversity (A .14 .37.PB5 3) |
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| 摘 要： | ＩｎｔｒｏｄｕｃｔｉｏｎＷｈｅｎｔｈｅｈｏｍｏｇｅｎｅｏｕｓｓｏｌｕｔｉｏｎｂｅｃｏｍｅｓｔｈｅｒｍｏｄｙｎａｍｉｃａｌｌｙｕｎｓｔａｂｌｅ (ｅ ｇ ,ｂｙｔｈｅｉｎｔｒｏｄｕｃｔｉｏｎｏｆａｎｏｎｓｏｌｖｅｎｔ) ,ｔｈｅｓｏｌｕｔｉｏｎｓｅｐａｒａｔｅｓｉｎｔｏｔｗｏｌｉｑｕｉｄｐｈａｓｅｓｏｆｄｉｆｆｅｒｅｎｔｃｏｍｐｏｓｉｔｉｏｎｔｏｌｏｗｅｒｔｈｅｆｒｅｅｅｎｅｒｇｙｏｆｔｈｅｍｉｘｔｕｒｅ Ｔｈｉｓｐｒｏｃｅｓｓｉｓｒｅｓｐｏｎｓｉｂｌｅｆｏｒｔｈｅｇｅｎｅｒａｔｉｏｎｏｆｔｈｅｐｏｒｏｕ…
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Influence of the Surfactants on Microstructure and the Properties of Wet Coagulation Polyurethane Film |
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| ZENG Yue-min,YAN Hao-jing,HU Jin-lian.Influence of the Surfactants on Microstructure and the Properties of Wet Coagulation Polyurethane Film.[J].Journal of Donghua University,2002,19(2). |
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| Authors: | ZENG Yue-min YAN Hao-jing HU Jin-lian |
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| Institution: | 1. College of Textiles, Dong Hua University, Shanghai, 200051
2. Institute of Textiles and Clothing, The Hong Kong Polytechnic University. Hung Hom, Kowloon, Hong Kong |
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| Abstract: | Polyurethane asymmetric membranes were prepared by wet coagulation process from the PU/DMF/Span80/ OT70 solutions, and the morphological features of the cross section of the membranes obtained by scanning electron microscopy were presented. The influences of the non-ionic hydrophobic surfactant Span80 and the anionic surfactant hydrophilic OT-70 on the morphology of the membranes, the mechanical properties and the water vapor permeability were studied. The formation mechanism of the membrane microstructure from the different PU/DMF/Surfactants systems was discussed. |
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| Keywords: | membrane formation polyurethane macrovoid spinodal decomposition |
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