Fabrication of Aligned Poly(L-lactide) Fibers by Electrospinning and Drawing

被引：40

作者：

Afifi, Amalina M. ^{[1
,4
]}

Nakajima, Hajime ^{[1
]}

Yamane, Hideki ^{[2
]}

Kimura, Yoshiharu ^{[1
]}

Nakano, Shigeyuki ^{[3
]}

机构：

[1] Kyoto Inst Technol, Div Mat & Life Sci, Grad Sch Sci & Technol, Kyoto 6068585, Japan

[2] Kyoto Inst Technol, Ctr Fiber & Text Sci, Kyoto 6068585, Japan

[3] Tech Support Ctr Text Ind, Hyogo Prefectural Inst Technol, Nishiwaki, Hyogo 6770054, Japan

[4] Univ Malaya, Dept Mech Engn, Fac Engn, Kuala Lumpur 50603, Malaysia

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2009年 / 294卷 / 10期

关键词：

aligned fibers; drawing; electrospinning; molecular orientation; poly(L-lactide); POLYMER NANOFIBERS; DIAMETER;

D O I：

10.1002/mame.200900101

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

A new target collector was designed for taking up aligned nanofibers by electrospinning. The collector consists of a rotor around which several fins were attached for winding electrospun filaments continuously in large amounts. The alignment of the nanofibers wound on the collector was affected by the electrospinning conditions, such as the needle-to-collector distance and the applied voltage, but not by the rotation speed of the collector. At a voltage of 0.5 kV . cm(-1), about 60% of the fibers were found to be aligned within an angle of +/-5 degrees relative to the rotational direction of the collector. The fiber alignment was improved to 90% by drawing the fiber bundle 2-3 times at 110 degrees C. The drawing was also effective for crystal orientation of the fibers as revealed by WAXD. The drawn fibers show improved mechanical properties.

引用

页码：658 / 665

页数：8

共 17 条

[1]

Electrospinning with dual collection rings [J].