Preparation and characterization of electrospun cellulose acetate sub-micro fibrous membranes

被引:3
作者
Quan, Zhenzhen [1 ,2 ,3 ]
Wang, Yihan [1 ,2 ]
Wu, Jiajun [1 ,2 ]
Qin, Xiaohong [1 ,2 ]
Yu, Jianyong [3 ]
机构
[1] Donghua Univ, Coll Text, Shanghai Collaborat Innovat Ctr High Performance, Shanghai, Peoples R China
[2] Donghua Univ, Coll Text, Key Lab Text Sci & Technol, Minist Educ, Shanghai, Peoples R China
[3] Donghua Univ, Innovat Ctr Text Sci & Technol, Shanghai, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Electrospinning; cellulose acetate; sub-microfiber morphology; hydrolysis; SOLVENT SYSTEM; NANOFIBERS; FIBERS; MORPHOLOGY;
D O I
10.1177/00405175211011772
中图分类号
TB3 [工程材料学]; TS1 [纺织工业、染整工业];
学科分类号
0805 ; 080502 ; 0821 ;
摘要
Electrospun sub-microfiber membrane of cellulose acetate (CA), with excellent biodegradability, high specific surface area and high porosity, has attracted wide attention in various research fields. Even so, the stable continuous electrospinning of CA sub-micro fibers is affected by the solution parameters and CA acetylation degree dramatically, which still remains challenging. In the present work, electrospun CA sub-micro fibrous membranes have been prepared from four distinct solvent systems, respectively, to explore the proper solution parameters for membrane fabrication. After hydrolysis and electrospinning, the produced CA sub-micro fibrous membranes were analyzed in terms of fiber size distribution, hydrophilicity and porosity. Current analysis has shown that the degree of substitution of CA sub-micro fibers decreases with the increase in hydrolysis time, resulting in increased diameter irregularity, decreased average porosity and increased hydrophilicity of the sub-micro fibrous membrane.
引用
收藏
页码:2540 / 2550
页数:11
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