DRY ADHESION BASED ON ELECTROSPUN POLYMER NANOFIBERS

被引：0
|
作者：
Shi, Qiang [1 ]
Wong, Shinq-Chunq [1 ]
Wan, Kai-Tak [2 ]
Blackledge, Todd A. [3 ]
Najem, John [1 ]
机构：
[1] Univ Akron, Dept Mech Engn, Akron, OH 44325 USA
[2] Northeastern Univ, Dept Mech & Ind Engn, Boston, MA 02115 USA
[3] Univ Akron, Dept Biol & Integrated Bioscience Program, Akron, OH 44325 USA
来源：
PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION 2010, VOL 12 | 2012年
基金：
美国国家科学基金会;
关键词：
FRICTION; FORCES; SIZE; MICROSCOPY; ROUGHNESS; NANOMETER; SURFACES; CONTACT; FIBERS; SILK;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Dry Adhesion exists between polymer nano/microfibers. An elaborate experiment was performed to directly measure the adhesion between electrospun poly(epsilon-caprolactone) (PCL) microfibers using a nano force tensile tester. Electrospun nano/microfibers with radius ranging from 0.2 to 1.1 mu m were investigated. It was found that the adhesion force depended on the fiber radius following a linear relationship, which complied with the classical Johnson-Kendall-Roberts (JKR) contact mechanics model. The force increased with temperature and decreased with relative humidity between two fibers positioned in orthogonal directions. Our data suggested the van der Weals' (vdW) interactions are primarily operative between the micro-/nanofibers.
引用
收藏
页码：163 / +
页数：3
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