新材料与新技术

聚丙烯腈及其复合纳米纤维膜制备与性能研究

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  • 中原工学院材料与化工学院,郑州 450007
刘忠柱(1987-),女,博士,讲师,主要研究方向为聚合物成型加工及功能性薄膜的制备及性能,E-mail:zzliu@zut.edu.cn。

收稿日期: 2020-07-05

  修回日期: 2021-09-29

  网络出版日期: 2021-12-31

基金资助

中国纺织工业联合会指导性项目(2018070);中原工学院青年骨干教师项目(2019XQG05)

Preparation and property of PAN and its composite nanofiber membrane

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  • School of Materials and Chemical Engineering,Zhongyuan University of Technology, Zhengzhou 450007

Received date: 2020-07-05

  Revised date: 2021-09-29

  Online published: 2021-12-31

摘要

首先探讨了静电纺丝聚丙烯腈(PAN)纳米纤维膜的最佳纺丝工艺条件,随后利用多巴胺(DA)对多壁碳纳米管(MWCNTs)进行改性(PDA-MWCNTs)。并以最佳静电纺丝条件下制备的PAN纳米纤维膜为基体,通过超声吸附-浸渍的方法制备出PDA-MWCNTs@PAN纳米纤维复合材料。考察了纺丝电压和纺丝距离对PAN纳米纤维膜形貌的影响,着重探讨了PDA-MWCNTs@PAN纳米纤维复合材料的形貌、热稳定性及吸附性能。研究结果表明,纺丝距离和纺丝电压分别为15cm和18kV为最佳工艺条件;在MWCNTs表面包覆一层PDA(PDA-MWCNTs),并且PDA-MWCNTs能够较好地吸附于PAN纳米纤维膜表面;PDA-MWCNTs@PAN复合纳米纤维膜的质量损失速率较纯PAN膜变慢;PDA-MWCNTs@PAN复合纳米纤维膜的吸附性能随着MWCNTs含量的增加而增大。

本文引用格式

刘忠柱, 张梦霞, 罗海玉, 秦琦 . 聚丙烯腈及其复合纳米纤维膜制备与性能研究[J]. 化工新型材料, 2021 , 49(12) : 84 -88 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.12.017

Abstract

Firstly,polyacrylonitrile (PAN) nanofiber membrane was obtained by electrospun method,and discussed its optimal conditions of electrospinning process.Then multiwalled carbon nanotubes (MWCNTs) were modified by DA,and obtained PDA-MWCNTs modified composite.PDA-MWCNTs@PAN composite nanofiber was prepared via ultrasonic adsorption-dipping method.The effects of electrospinning voltage and distance on the morphology of the nanofiber were investigated.The morphology,thermal stability and adsorption properties of PDA-MWCNTs@PAN were mainly discussed.The results shown that in this experiment,electrospinning voltage and distance were respectively 15cm and 18kV,which were the optimal electrospinning process conditions.A PDA coating was coated on the surface of MWCNTs,and PDA-MWCNTs could be well adsorbed on the surface of PAN nanofiber membrane.Compared with PAN nanofiber film,the mass loss rate of PDA-MWCNTs@PAN was relatively slower.The adsorption property of PDA-MWCNTs@PAN increased with increasing MWCNTs content.

参考文献

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