A simple one-step fabrication of short polymer nanofibers via electrospinning
A simple one-step fabrication of short polymer nanofibers via electrospinning
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DOI：
10.1007/s10853-014-8065-y
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发表时间：
2014-05-01
影响因子：
4.5
通讯作者：
Yabuki, Akihiro
中科院分区：
文献类型：
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作者：
Fathona, Indra W.;Yabuki, Akihiro
利用静电纺丝技术成功地制备了短的聚合物纳米纤维，该溶液由聚合物醋酸纤维素、丙酮和二甲基乙酰胺组成。溶液中聚合物的浓度范围为13至15重量%，并且是短纳米纤维制造中最重要的因素。通过聚合物溶液的流速沿着施加电压改变短纳米纤维的长度。通过增加溶液的流速来增加长度，并且随着所施加的电压的增加而减小长度，导致可以控制在37-670 μ m的短纳米纤维的长度。聚合物溶液射流从针尖直接喷出，但随后由于聚合物溶液表面上的横向扰动而扩散。来自表面电荷的排斥力的快速增加结合来自所施加电压的纵向力分裂溶液射流并分割纳米纤维。
Short polymer nanofibers were successfully fabricated by electrospinning, a solution composed of a polymer cellulose acetate, acetone, and dimethyl acetamide. The concentration of the polymer in the solution ranged from 13 to 15 wt% and was the most important factor in the fabrication of short nanofibers. The lengths of the short nanofibers were changed via the flow rate of the polymer solution along with the applied voltage. The length was increased by increasing the flow rate of the solution, and it was decreased with an increase in the applied voltage, resulting in a length of short nanofibers that could be controlled at 37-670 mu m. The polymer solution jet ejected straight from the needle tip, but then it was spread due to lateral perturbations on the surface of the polymer solution. A rapid increase in the repulsive force from surface charges combined longitudinal forces from the applied voltage split the solution jet and segmented the nanofibers.