| 胍基聚合物接枝改性制备抗菌抗污染超滤膜 |
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| 引用本文： | 孙雪飞,高勇强,赵颂,张文,王志,王晓琳. 胍基聚合物接枝改性制备抗菌抗污染超滤膜[J]. 化工学报, 2018, 69(11): 4869-4878. DOI: 10.11949/j.issn.0438-1157.20180551 |
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| 作者姓名： | 孙雪飞 高勇强 赵颂 张文 王志 王晓琳 |
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| 作者单位： | 1. 化学工程联合国家重点实验室, 天津大学化工学院化学工程研究所, 天津市膜科学与海水淡化技术重点实验室, 天津 300072;2. 化学工程联合国家重点实验室, 清华大学化学工程系, 北京 100084 |
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| 基金项目： | 国家自然科学基金项目（21776205）；天津市应用基础与前沿技术研究计划项目（15JCQNJC43400）。 |
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| 摘 要： | 表面接枝杀菌材料是提高膜抗菌和抗污染性能的常用手段。胍基化合物具有杀菌广谱、易制备、低毒等优点，已受到研究者的广泛关注。通过聚乙烯亚胺和盐酸胍的熔融聚合反应制备胍基聚合物（聚乙烯亚胺胍盐酸盐，PEIGH），并利用聚多巴胺中间层将其接枝到聚砜超滤膜表面。结果表明，PEIGH具有良好的抗菌性能，经其改性后的超滤膜润湿性能提高，纯水通量提高了11%~98%，牛血清蛋白截留率由96.6%提高到98.3%以上。抗菌性能、抗有机物污染和抗生物污染性能均得到明显改善。
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| 关 键 词： | 膜 超滤 聚乙烯亚胺胍盐酸盐 表面改性 选择性 抗生物污染 |
| 收稿时间： | 2018-05-24 |
| 修稿时间： | 2018-07-20 |
Ultrafiltration membrane with antibacterial and antifouling properties by grafting guanidine based polymer |
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| SUN Xuefei,GAO Yongqiang,ZHAO Song,ZHANG Wen,WANG Zhi,WANG Xiaolin. Ultrafiltration membrane with antibacterial and antifouling properties by grafting guanidine based polymer[J]. Journal of Chemical Industry and Engineering(China), 2018, 69(11): 4869-4878. DOI: 10.11949/j.issn.0438-1157.20180551 |
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| Authors: | SUN Xuefei GAO Yongqiang ZHAO Song ZHANG Wen WANG Zhi WANG Xiaolin |
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| Affiliation: | 1. State Key Laboratory of Chemical Engineering, Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin 300072, China;2. State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | Surface grafting bactericidal materials are commonly used methods to improve the antibacterial and anti-pollution properties of membranes. Guanidine compounds have received a lot of attentions due to their efficient and broad-spectrum antibacterial properties, easy preparation and low toxicity to the mammalian cell. Herein, a guanidine based polymer, namely PEIGH, was prepared through melt phase polycondensation of polyethyleneimine and guanidine hydrochloride, then used for ultrafiltration membrane surface modification with the assist of polydopamine. The results show that the synthesized PEIGH possesses good antibacterial property. Compared to the unmodified membranes, the membranes modified by PEIGH have better wettability. The permeation flux increases by 11%-98% and rejection for bovine serum albumin raises from 96.6% to 98.3% above. Antibacterial, anti-organic and anti-biobial properties have been significantly improved. |
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| Keywords: | membranes ultrafiltration PEIGH surface modification selectivity antibiofouling |
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