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材料工程  2020, Vol. 48 Issue (3): 47-52    DOI: 10.11868/j.issn.1001-4381.2018.000918
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
TiO2共混丝朊接枝聚丙烯腈过滤膜制备及性能研究
李淑文1,2, 赵孔银1, 陈康1, 李金刚1, 赵磊1, 王晓磊1, 魏俊富1,2
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 化学与化学工程学院, 天津 300387
Preparation and properties of TiO2 blended silk fibroin grafted PAN filtration membrane
LI Shu-wen1,2, ZHAO Kong-yin1, CHEN Kang1, LI Jin-gang1, ZHAO Lei1, WANG Xiao-lei1, WEI Jun-fu1,2
1. State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China;
2. School of Chemical and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China
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摘要 针对传统高分子过滤膜使用有机溶剂易造成环境污染的问题,以氯化锌水溶液为溶剂,丝朊均相接枝聚丙烯腈,加入纳米TiO2得到铸模液,以水为凝固浴,制备TiO2共混的丝朊接枝聚丙烯腈(SF-g-PAN/TiO2)过滤膜。通过扫描电子显微镜,红外光谱等方法对膜进行表征,研究不同TiO2含量的SF-g-PAN过滤膜的亲水性、抗污染性能、力学性能以及SF-g-PAN/TiO2膜对不同分子量染料的截留。结果表明:随着TiO2含量的增加,膜的力学强度先增大后减小。TiO2含量为1%(质量分数)时,膜的力学和抗污染性能最好;在0.10 MPa下,SF-g-PAN/TiO2膜对于分子量大于660的染料截留率为96%以上,通量达到80 L/(m2·h)。
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李淑文
赵孔银
陈康
李金刚
赵磊
王晓磊
魏俊富
关键词 丝朊接枝聚丙烯腈纳米TiO2抗污染亲水性力学性能    
Abstract:Using organic solvent in traditional polymer filtration membrane is easy to cause environ-mental pollution.The silk was uniformly grafted with polyacrylonitrile using zinc chloride aqueous sol-ution as the solvent. The nano-TiO2 was blended into the mixture and the casting solution was pre-pared. The TiO2 blended silk fibroin grafted PAN (SF-g-PAN/TiO2) filtration membrane was pre-pared using water as the coagulation bath. The membrane was characterized by scanning electron micr-oscopy and infrared spectroscopy. The hydrophilic, anti-fouling and mechanical properties of SF-g-PAN membranes with different TiO2contents were studied. The rejection performance of dyes with different molecular weight by the SF-g-PAN/TiO2 membrane was investigated. The results show that the mechanical properties of the SF-g-PAN/TiO2 filtration membranes increase firstly and then dec-rease with the increase of TiO2 content. When the content of TiO2 is 1%(mass fraction), the mech-anical and hydrophilic properties of the SF-g-PAN/TiO2 membrane are the best; the rejection of the dyes whose molecular weight is more than 660 is greater than 96%, with the flux of 80 L/(m2·h) at 0.10 MPa.
Key wordssilk fibroin grafted polyacrylonitrile    nano TiO2    anti-fouling    hydrophilicity    mechanical property
收稿日期: 2018-07-28      出版日期: 2020-03-18
中图分类号:  TB332  
  TQ319  
通讯作者: 赵孔银(1979-),男,副教授,博士,研究方向:复合材料、过滤膜,联系地址:天津市西青区宾水西道399号天津工业大学材料学院(300387),E-mail:tjzhaokongyin@163.com     E-mail: tjzhaokongyin@163.com
引用本文:   
李淑文, 赵孔银, 陈康, 李金刚, 赵磊, 王晓磊, 魏俊富. TiO2共混丝朊接枝聚丙烯腈过滤膜制备及性能研究[J]. 材料工程, 2020, 48(3): 47-52.
LI Shu-wen, ZHAO Kong-yin, CHEN Kang, LI Jin-gang, ZHAO Lei, WANG Xiao-lei, WEI Jun-fu. Preparation and properties of TiO2 blended silk fibroin grafted PAN filtration membrane. Journal of Materials Engineering, 2020, 48(3): 47-52.
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