静电纺CS/PVP/MWCNTs纤维膜的制备及表征  

Preparation and Characterization of Electrospun CS/PVP/MWCNTs Fibrous Membranes

作　　者：石素宇 方梅 赵康[2] 宋会芬 SHI Su-yu1, FANG Mei1,2, ZHAO Kang2, SONG Hui-fen1(1. College of Material and Chemical Engineering, Henan University of Engineering, Zhengzhou 450007, China ; 2. School of Material Science and Engineering, Zhengzhou University, Zhengzhou 450001, Chin)

机构地区：[1]河南工程学院材料与化学工程学院,河南郑州450007 [2]郑州大学材料科学与工程学院,河南郑州450001

出　　处：《福建师范大学学报（自然科学版）》2018年第3期52-58,共7页Journal of Fujian Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51173171);河南工程学院博士基金(D2015018)

摘　　要：以天然高分子壳聚糖(CS)为研究对象,聚乙烯吡咯烷酮(PVP)和多壁碳纳米管(MWCNTs)为改性剂,通过静电纺丝技术制备了CS/PVP/MWCNTs纤维膜.综合利用扫描电子显微镜(SEM)、X-射线衍射(XRD)、热重分析(TG)、拉伸性能和过滤性能测试对纤维膜的结构和性能进行表征.主要结果如下:MWCNTs的加入改善了CS/PVP/MWCNTs纺丝溶液的可纺性,有利于形成粗细均匀,表面光滑的纤维;MWCNTs的异相成核作用促进了聚合物分子链的结晶,提高了结晶度;MWCNTs的加入显著提高了复合纤维膜的断裂强度、模量和热稳定性;CS/PVP/MWCNTs纤维膜的过滤性能优良.Natural polymer-chitosan（ CS） was used as the research subject to prepare the CS/PVP/MWCNTs fibrous membrane by electrospinning technique,using polyvinylpyrrolidone（ PVP）and multi-walled carbon nanotubes（ MWCNTs） as modifiers. A combination of scanning electronic microscope（ SEM）,X-ray diffractomer（ XRD）,thermogravimetric analyzer（ TG）,tensile test and filtration performance test was used to characterize the microstructure and properties of CS/PVP/MWCNTs fibrous membrane. The main results are as follows： addition of MWCNTs can improve the spinnability of CS/PVP/MWCNTs solution,which contributes to form uniform and smooth fiber; the heterogeneous nucleation effect of MWCNTs contributes to the crystallization of polymer molecular chains,leading to an increased crystallinity; addition of MWCNTs results in the considerable improvement of strength,modulus and thermal stability of CS/PVP/MWCNTs fibrous membrane; the CS/PVP/MWCNTs fibrous membrane exhibits excellent filtration performance.

关 键 词：壳聚糖 聚乙烯吡咯烷酮 多壁碳纳米管 静电纺丝技术 过滤 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]