Fabrication and characterisation of chitosan/poly vinyl alcohol nanofibres via electrospinning

被引：10
|
作者：
Talebian, S. [1 ]
Afifi, A. M. [1 ]
Khanlou, H. M. [1 ]
机构：
[1] Univ Malaya, Fac Engn, Dept Mech Engn, Kulala Lumpur 50603, Malaysia
来源：
MATERIALS RESEARCH INNOVATIONS | 2014年 / 18卷
关键词：
Chitosan; Poly vinyl alcohol; Nanofibres; Electrospinning; Deacetylation; Viscometry; VISCOMETRIC CONSTANTS; IN-VITRO; CHITIN;
D O I：
10.1179/1432891714Z.000000000979
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, chitosan nanofibres were fabricated using electrospinning process. Initially, chitosan powders were further deacetylated with sodium hydroxide to deprotonate the polymer chains and decrease the molecular weight. Subsequently, the treated chitosan (5 wt-% in 90:10 acetic acid/water ratio) were mixed with poly vinyl alcohol (8 wt-% in water) at different ratios in order to facilitate the electrospinning through cross-links formation. Field-emission scanning electron microscopic images showed that 60:40 (chitosan/poly vinyl alcohol) ratio was the threshold for formation of beads (chitosan/poly vinyl alcohol >50:50 contains imperfections) and that increasing chitosan/poly vinyl alcohol ratio from 20:80 to 60:40 decreased the average diameter of fibres from 80 to 40 nm. Fourier transform infrared spectra proved the formation of chitosan/poly vinyl alcohol cross-linked nanofibres.
引用
收藏
页码：331 / 335
页数：5
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