| 透氧纤维素膜的制备及其性能研究 |
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| 引用本文： | 张鹏,崔懂礼,程小娟,刘华群,刘泽华.透氧纤维素膜的制备及其性能研究[J].天津科技大学学报,2014(5):53-57. |
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| 作者姓名： | 张鹏 崔懂礼 程小娟 刘华群 刘泽华 |
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| 作者单位： | 天津市制浆造纸重点实验室，天津科技大学材料科学与化学工程学院，天津 300457 |
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| 摘 要： | 以NMMO(N–甲基吗啉–N–氧化物)工艺为基础,在纤维素溶液中加入CaCO3并在成膜后酸洗去除,制备具有适当透气度的纤维素膜.通过控制CaCO3的粒径和添加量,探讨纤维素膜透氧性能和拉伸性能的变化.结果表明:随着CaCO3的加入,纤维素膜的透氧系数增大,拉伸强度、断裂伸长率和透明度总体呈下降趋势.CaCO3添加量一定时,CaCO3粒径越大,透氧系数越大,拉伸强度和透明度越小.
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| 关 键 词： | 纤维素膜 NMMO 碳酸钙 拉伸性能 透氧性能 |
Preparation and Properties of Breathable Cellulose Membranes |
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| ZHANG Peng,CUI Dongli,CHENG Xiaojuan,LIU Huaqun,LIU Zehua.Preparation and Properties of Breathable Cellulose Membranes[J].Journal of Tianjin University of Science & Technology,2014(5):53-57. |
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| Authors: | ZHANG Peng CUI Dongli CHENG Xiaojuan LIU Huaqun LIU Zehua |
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| Institution: | ZHANG Peng;CUI Dongli;CHENG Xiaojuan;LIU Huaqun;LIU Zehua;Tianjin Key Laboratory of Pulp and Paper,College of Material Science and Chemical Engineering,Tianjin University of Science & Technology; |
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| Abstract: | Breathable cellulose membranes were prepared by using NMMO（N-methylmorpholine-N-oxide）technology, through adding CaCO3 particles to the cellulose solution and then removing CaCO3 with acid after the membranes were for-med. The oxygen permeability coefficient and strength properties of the membranes were investigated by controlling the dosage and diameter of CaCO3. The results shows that as the dosage of CaCO3 increases,the oxygen permeability coefficient of the cellulose membranes increases;the tensile strength,the elongation at break and the transparency show a decreasing trend. When the diameter of CaCO3 increases,the oxygen permeability coefficient increases,but the tensile strength and the transparency decreases. |
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| Keywords: | cellulose membrane NMMO calcium carbonate tensile properties oxygen permeability |
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