多壁碳纳米管/Fe3O4/SiO2/聚氯乙烯共混膜的制备及性能研究

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摘要采用浓硫酸/浓硝酸(体积比3∶1)混酸改性、超声混融和化学水热法配制负载Fe₃O₄的多壁碳纳米管(MWCNTs),将酸化改性的MWCNTs/Fe₃O₄与纳米级SiO₂以适当比例混合超声研磨所得添加剂MWCNTs/Fe₃O₄/SiO₂与聚氯乙烯(PVC)、聚乙二醇(PEG)、N,N-二甲基乙酰胺(DMAC)共混制膜,获得MWCNTs/Fe₃O₄/SiO₂/PVC共混膜。通过对膜的纯水通量、溶胀度、孔隙率、平均孔径和牛血清蛋白(BSA)截留率进行比较,结果发现:MWCNTs/Fe₃O₄/SiO₂/PVC的接触角为68.1°,纯水通量为111L·m²/h,BSA截留率为73.9%,皆较PVC膜有所提高,且膜的抗张强度(2.09MPa)和延伸率(17.01%)较MWCNTs/Fe₃O₄/PVC膜有所提高。

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	杨亚红
	招扬
	朱天旭
	胡家玮

关键词: 多壁碳纳米管纳米级SiO₂ 多壁碳纳米管/Fe₃O₄ 共混超滤膜

Abstract: Using the mixed acid modification which the ratio of concentrated sulfuric acid and concentrated nitric acid was 3∶1,ultrasonic mixing and chemical hydrothermal method,Fe₃O₄ loaded MWCNTs was configured,the acid modified MWCNTs/Fe₃O₄ and nanometer silica(SiO₂)with the appropriate proportion of mixed income ultrasonic grinding additives MWCNTs/Fe₃O₄/SiO₂ was blended with PVC,PEG and N,N-two acetamide(DMAC) to obtain MWCNTs/Fe₃O₄/SiO₂/PVC blend film.Based on compared the membrane flux,swelling degree,porosity,average pore size and bovine serum albumin (BSA) rejection rate,the results showed that the contact angle of MWCNTs/Fe₃O₄/SiO₂/PVC was 68.1°,the pure water flux of 111L·m²/h,the retention rate of BSA was 73.9%,which was higher than that of PVC film.The tensile strength (2.09MPa)and elongation(17.01%) were higher than those of MWCNTs/Fe₃O₄/PVC.

Key words: MWCNTs nano SiO₂ MWCNTs/Fe₃O₄ blend ultrafiltration membrane

出版日期: 2019-03-20 发布日期: 2019-03-20 期的出版日期: 2019-03-20

基金资助: 甘肃省自然科学基金A类项目(1506RJZA099和1506RJZA096)

作者简介: 杨亚红(1976-),女,博士,副教授,主要研究方向为水质净化机理研究及其新材料新工艺。

引用本文:

杨亚红,招扬,朱天旭,胡家玮. 多壁碳纳米管/Fe₃O₄/SiO₂/聚氯乙烯共混膜的制备及性能研究[J]. 化工新型材料, 2019, 47(3): 62-66.
Yang Yahong ,Zhao Yang ,Zhu Tianxu ,Hu Jawei. Preparation and property of MWCNTs/Fe₃O₄/SiO₂/PVC blend film. New Chemical Materials, 2019, 47(3): 62-66.

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http://www.hgxx.org/CN/ 或 http://www.hgxx.org/CN/Y2019/V47/I3/62

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