新材料与新技术

高透过性三聚氰胺/乙基纤维素混合基质膜的制备及性能研究

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  • 1.齐齐哈尔大学材料科学与工程学院黑龙江省聚合物基复合材料重点实验室,齐齐哈尔161006;
    2.大庆师范学院化学工程学院,大庆163712
周海亮(1995-),男,硕士,主要研究方向为气体分离膜的研制,E-mail:zhouhailiang95@163.com。

收稿日期: 2021-02-06

  修回日期: 2021-05-10

  网络出版日期: 2021-08-19

基金资助

国家自然科学基金(51103076);黑龙江省省属高等学校基本科研业务费科研项目(YSTSXK201867)

Study on preparation and performance of high permeability melamine/EC MMMs

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  • 1. College of Materials Science and Engineering,Heilongjiang Provinces Key Laboratory of Polymeric Composite Materials,Qiqihar University,Qiqihar 161006;
    2. College of Chemical Engineering,Daqing Normal University,Daqing 163712

Received date: 2021-02-06

  Revised date: 2021-05-10

  Online published: 2021-08-19

摘要

以乙基纤维素(EC)为基体,四氢呋喃(THF)为溶剂,在高速搅拌下辅于超声振荡和三聚氰胺共混、涂膜制得了一系列三聚氰胺含量不同的三聚氰胺/EC混合基质膜。采用傅立叶红外光谱对膜的结构进行表征,通过薄膜拉伸强度测试仪、热失重分析和气体透过仪对膜性能进行了测试。结果表明:制得的混合基质膜具有良好的成膜性、耐热性及力学性能;与纯EC膜相比,混合基质膜对CO2的透过性有了一定的提升,其中CO2/CH4混合气的CO2透过达到了85.9Barrer,是纯EC膜的1.9倍;CO2/N2混合气的CO2的透过量达到了96.4Barrer,是纯EC膜的2.1倍。

本文引用格式

周海亮, 徐双平, 贾宏葛, 徐靖宇, 刘达, 张明宇, 蘧延庆, 马文强, 姜鹏飞, 赵雯雯, 王馨甜 . 高透过性三聚氰胺/乙基纤维素混合基质膜的制备及性能研究[J]. 化工新型材料, 2021 , 49(7) : 94 -98 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.07.022

Abstract

A series of mixed matrix membranes (MMMs) with ethyl cellulose (EC) as matrix and melamine as modifier in tetrahydrofuran(THF)were prepared under high speed and ultrasonic vibration-assisted,by using the casting solution method.The melamine/EC membranes exhibited good membrane forming ability,heat resistance and mechanical properties.The successful melamine/EC mixed matrix membranes were confirmed by fourier transfer infrared (FT-IR).The CO2 permeability of the CO2/CH4 mixture was 85.9 Barrer,respectively,increased up to 1.9 times as compared to pure EC (45.3Barrer).The CO2 permeability of the CO2/N2 mixture was 96.4 Barrer,respectively,increased up to 2.1 times as compared to pure EC (45.4 Barrer).

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