Wicking Phenomenon in Polyacrylonitrile Nanofiber Yarn

被引：19

作者：

Jad, Mahbube Sadat Musavi ^{[1
]}

Ravandi, Seyed Abdolkarim Hosseini ^{[1
]}

Tavanai, Hossein ^{[1
]}

Sanatgar, Razieh Hashemi ^{[1
]}

机构：

[1] Isfahan Univ Technol, Dept Text Engn, Nanotechnol & Adv Mat Inst, Esfahan 8415683111, Iran

来源：

FIBERS AND POLYMERS | 2011年 / 12卷 / 06期

关键词：

Nanofiber yarn; Wicking; Twist; Heat treatment stretch; Electrospinning; CAPILLARY RISE; FABRICS; WATER;

D O I：

10.1007/s12221-011-0801-1

中图分类号：

TB3 [工程材料学]; TS1 [纺织工业、染整工业];

学科分类号：

0805 ; 080502 ; 0821 ;

摘要：

The aim of this paper is to investigate vertical wicking in polyacrylonitrile (PAN) electrospinning nanofiber yarn using image analysis. Colored liquid rising phenomenon into the yarn and the distance of liquid rise were determined as a function of time. The kinetics of capillary rise follows the Lucas-Washburn equation. The results show that capillary rise rate coefficient is being reduced with increasing yarn twist, due to the reduction of continuity and size of capillaries. Increasing heat treatment stretch from 0 % (draw ratio=1) to 50 % (draw ratio=1.5) increases the capillary rise rate coefficient, due to the more homogeneity of capillary spaces in the yarn structure and increasing heat treatment stretch from 50 to 100% (draw ratio=2) reduces capillary rise rate coefficient, because of the low capillary length. The present study indicates that an appropriate choice in production parameters of nanofiber yarn is all important in obtaining the desired properties of capillary rise.

引用

页码：801 / 807

页数：7

共 21 条

[1] The wicking of water in yarn as measured by an electrical resistance technique [J].