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PPy-coated Electrically Conducting Fabrics with High Strain Sensitivity

Published online by Cambridge University Press:  01 February 2011

Pu Xue ,
X.M. Tao ,
H.Y. Tsang  and
M.Y Leung
Pu Xue
Affiliation:
tc389@inet.polyu.edu.hk, The Hong Kong Polytechnic University, Institute of Textiles and Clothing, Hung Hom, KL, Hong Kong, Hong Kong, 852, China, People's Republic of
X.M. Tao
Affiliation:
tctaoxm@inet.polyu.edu.hk, The Hong Kong Polytechnic University, Institute of Textiles and Clothing, Hung Hom, Kowloon, Hong Kong, China, People's Republic of
H.Y. Tsang
Affiliation:
tcjoanna@inet.polyu.edu.hk, The Hong Kong Polytechnic University, Institute of Textiles and Clothing, Hung Hom, Kowloon, Hong Kong, China, People's Republic of
M.Y Leung
Affiliation:
tclens@inet.polyu.edu.hk, The Hong Kong Polytechnic University, Institute of Textiles and Clothing, Hung Hom, Kowloon, Hong Kong, China, People's Republic of
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Abstract

This paper studies a flexible strain sensor from PPy-coated fabric prepared by a chemical vapor deposition procedure under low temperature. The mechanisms of its strain sensing behavior were investigated. In-situ tensile tests in a scanning electron microscope (SEM) were conducted for PPy-coated electrically conducting yarns prepared in the same procedure as that for the PPy-coated fabric. The results exhibited the developed PPy-coated fabric possessed the high strain sensitivity and the large workable strain range, which attribute to the high performance of PPy-coated PU fibers and the crack-opening and crack-closing mechanism happened on the surface of PU fibers, as well as the excellent properties of knitted fabric structure.

Keywords

electrical propertiesfibersensor
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 920: Symposium S – Smart Nanotextiles , 2006 , 0920-S05-02
Copyright
Copyright © Materials Research Society 2006

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