| 海藻酸钙/聚丙烯无纺布复合过滤膜的制备及性能 |
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| 引用本文： | 陈康,赵孔银,张志箭,许国庆,叶婷婷,王晓磊,魏俊富.海藻酸钙/聚丙烯无纺布复合过滤膜的制备及性能[J].复合材料学报,2019,36(1):7-12. |
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| 作者姓名： | 陈康 赵孔银 张志箭 许国庆 叶婷婷 王晓磊 魏俊富 |
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| 作者单位： | 1. 天津工业大学 分离膜与膜过程国家重点实验室, 天津 300387;
2. 天津工业大学 材料科学与工程学院, 天津 300387 |
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| 基金项目： | 国家自然科学基金(21304037;51708407;21476172);天津市应用基础与前沿技术研究计划项目(16JCZDJC37500);大学生创新创业训练计划(201710058020;201710058069);天津市科技支撑计划重点项目(15ZCZDSF00880) |
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| 摘 要： | 以聚丙烯(PP)无纺布为载体,不添加致孔剂制备了海藻酸钙/PP无纺布(CaAlg/PP)水凝胶复合过滤膜。通过SEM、TG对CaAlg/PP复合膜的表面形貌、热稳定性能进行表征。研究了CaAlg/PP复合膜的抗溶胀性能及其对染料吸附和染料截留的性能。结果表明,CaAlg/PP复合膜的抗溶胀性能比CaAlg水凝胶膜有很大提高。在0.1MPa压力下,NaCl浓度为1g·L-1时,料液通量为9.5L(m2·h)-1,对亮蓝的截留率达到98.3%。CaAlg/PP复合膜的耐压性能远优于CaAlg膜,经过Ca2+交联后可以多次重复使用。CaAlg/PP复合膜对阴离子染料的吸附量很小,避免了染料的吸附污染。CaAlg/PP复合膜可应用于染料中低浓度盐的脱除。
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| 关 键 词： | 无纺布 聚丙烯 海藻酸钙 水凝胶复合过滤膜 染料截留 |
| 收稿时间： | 2018-02-01 |
Preparation and properties of calcium alginate/polypropylene non-woven composite filtration membrane |
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| CHEN Kang,ZHAO Kongyin,ZHANG Zhijian,XU Guoqing,YE Tingting,WANG Xiaolei,WEI Junfu.Preparation and properties of calcium alginate/polypropylene non-woven composite filtration membrane[J].Acta Materiae Compositae Sinica,2019,36(1):7-12. |
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| Authors: | CHEN Kang ZHAO Kongyin ZHANG Zhijian XU Guoqing YE Tingting WANG Xiaolei WEI Junfu |
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| Affiliation: | 1. State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China;
2. School of Material Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China |
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| Abstract: | Polypropylene non-woven supported calcium alginate (CaAlg/PP) hydrogel composite filtration membranes were fabricated without porogen. The morphology, structure and thermal stability of the CaAlg/PP membranes were characterized by SEM and TG. The antiswelling property, dyes adsorption and dyes rejection properties of the CaAlg/PP membranes were researched. The results show that the antiswelling properties of CaAlg/PP membrane are greatly improved compared with free-standing CaAlg hydrogel filtration membrane. When the concentration of sodium chloride is 1 g·L-1, the flux of the CaAlg/PP membrane reaches 9.5 L(m2·h)-1 under 0.1 MPa and the rejection of brilliant blue is 98.3%. The pressure resistant performance of CaAlg/PP membrane is far better than CaAlg filtration membrane and can be reused multiple times after Ca2+ cross-linking. The adsorption rate of anionic dyes is low, reducing the CaAlg/PP membrane fouling. The CaAlg/PP membrane can be used in dye desalination with a low salt concentration. |
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| Keywords: | non-woven polypropylene calcium alginate hydroge composite filtration membrane dye rejection |
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