静电纺壳聚糖/PVA共混纤维的微细结构  

The Microstructure of Electrospun Chitosan/PVA Nanofibres

作　　者：夏艳杰[1] 邱芯薇[1] 潘志娟[1] 陈立英[1] 

机构地区：[1]苏州大学材料工程学院,江苏苏州215021

出　　处：《南通大学学报（自然科学版）》2006年第1期34-37,42,共5页Journal of Nantong University(Natural Science Edition)　

摘　　要：文章主要研究静电纺工艺对壳聚糖/聚乙烯醇(PVA)共混纤维形态结构和聚集态结构的影响.研究表明:以甲酸为溶剂时,静电纺壳聚糖/PVA共混纤维的直径随着电压的增大有减小的趋势,喷丝头到接收屏之间的距离(C-SD)的增加有利于珠状物的减少,但使纤维细度的均匀性下降;以乙酸为溶剂时,静电纺壳聚糖/PVA共混纤维虽然呈连续的分布,但其上有一定数量的珠状物,增加C-SD,珠状物减少;随着电压和C-SD的增加,静电纺壳聚糖-乙酸/PVA共混纤维的结晶度增加.The effect of electrospinning technologies on the morphology structure and molecular conformation of electrospun chitosan/poly （vinyl alcohol）（PVA） fibres were investigated. The results showed that when the spinning solvent was formic acid, the diameter of electrospun chitosan/PVA fibres decreased with the increasing of the voltage, and the enhancing of the distance between capillary and screen（C - SD）was propitious to reduce the quantity of the beads. However, the uniformity of the diameter of the fibres decreased. When the solvent was acetic acid, the distribution of electrospun ehltosan/PVA fibers was continuous, but there were a number of beads. With the increasing of the voltage and the C - SD, the crystal degree of electrospun chitosan - acetic acid/PVA fibers increased.

关 键 词：壳聚糖 静电纺丝 PVA 形态结构 聚集态结构 

分 类 号：TS102.51[轻工技术与工程—纺织工程]