摘要
文中研究了用静电纺丝法批量制备纳米纤维的方法。基于韦森堡效应的原理,圆盘的旋转使溶液沿转轴爬升,从而为静电纺丝连续供液,由此设计了一种装置。纺丝头是由固定在圆盘上的针尖阵列组成的。圆盘的旋转使针尖蘸取爬升的溶液,在针尖和收集板间高电压的作用下制备出直径较小(200~800 nm)、比较均一的整齐的纤维。随着针数量和圆盘转速的增加,纤维的产率呈增加的趋势,产率可达3.3 g/h。纤维直径随着溶液浓度的增加而增加,但会随着圆盘转速以及电极至收集板之间的距离的增加而减小。
A new technique to generate nanofibers in batches using electrospinning is studied in this paper. The rotation of the rod enables the solution to climb to realize the continuous supply of the solution. A device for eleetrospinning is designed based on the Weissenberg effect. The electrospinning head is composed of the circular needle arrays attached to the disc. The needles dip the polymer solution supplied by reciprocating ro- tation of the disc. Thin and uniform nanofibers and ordered fibers with small diameters （200 - 800 nm） can be obtained under high voltage between needles and the collecting board. The production rate of nanofibers in- creases gradually with the increase of the number of needles and the rotation speed of the disc. The productivi- ty can be as high as 3.3 g/h. The fiber diameter increases with the increase of solution concentration, but de- creases with the decrease of the rotation speed of the disc and the distance between the electrode and the col- lecting board.
出处
《电子机械工程》
2017年第1期57-59,64,共4页
Electro-Mechanical Engineering
基金
国家自然科学基金资助项目(51475398
U1505243)
关键词
韦森堡效应
静电纺丝
纳米纤维
Weissenberg effect
electrospinning
nanofibers
