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林产化学与工业 ›› 2020, Vol. 40 ›› Issue (4): 1-8.doi: 10.3969/j.issn.0253-2417.2020.04.001

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醋酸纤维素的改性及应用研究进展

周慧敏,鲁杰,程意,吕艳娜,王海松*()   

  1. 大连工业大学 轻工与化学工程学院, 辽宁 大连 116034
  • 收稿日期:2020-03-23 出版日期:2020-08-28 发布日期:2020-08-21
  • 通讯作者: 王海松 E-mail:wanghs@dlpu.edu.cn
  • 作者简介:周慧敏(1996—),女,辽宁葫芦岛人,硕士生,主要从事生物质能源与材料方面的研究工作

Research Progress on Modification and Application of Cellulose Acetate

Huimin ZHOU,Jie LU,Yi CHENG,Yanna LYU,Haisong WANG*()   

  1. College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
  • Received:2020-03-23 Online:2020-08-28 Published:2020-08-21
  • Contact: Haisong WANG E-mail:wanghs@dlpu.edu.cn

摘要:

介绍了醋酸纤维素(CA)的亲水性、韧性、热塑性和生物降解性等性能特征,总结了3种不同醋酸纤维素的基本结构和市场应用情况,指出现阶段的CA还存在高温热稳定性差、机械强度低、膜易被污染等缺点。分析了物理改性和化学改性对CA性能的影响,指出聚合物的化学反应可以改变CA的结构或性质,使CA的耐污性、热塑性、选择性及重复利用性得到很大改善;而物理改性则可以提高CA膜的孔隙率和热稳定性,使膜的机械强度、金属离子排除率和水通量得到提高。对近年来CA在海水淡化、吸附烟气中有毒物质、制备生物医学膜、药物传递、组织修复再生、生物传感、户外防护及空气净化等方面的应用进行了概述,并对CA的市场前景和发展趋势进行了展望。

关键词: 醋酸纤维素, 改性, 应用

Abstract:

The hydrophilic, ductile, thermoplastic and biodegradable properties of cellulose acetate (CA) were introduced, and the basic structure and market application of three kinds of cellulose acetate were summarized.It was pointed out that CA still had some disadvantages such as poor thermal stability at high temperature, low mechanical strength and easily being contaminated. The impacts of the physical modification and chemical modification on the properties of CA were also reassessed.It could conclude that the chemical reaction with polymer could change the structure or properties of CA.The fouling resistance, thermoplastic, selective and reuse of the CA were improved greatly, while the physical modification could improve the porosity and thermal stability of CA membrane, and the membrane mechanical strength, metal ion exclusion rate and the water flux were improved. The applications of CA in seawater desalination, adsorption of toxic substances in flue gas, preparation of biomedical membrane, drug delivery, tissue repair and regeneration, biosensor, outdoor protection and air purification were also summarized, and the market prospect and development trend of CA were prospected.

Key words: cellulose acetate, modification, application

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