Effect of Crosslinking Agent Amount on Uniaxial Piezoresistivity of Carbon 
Black Filled Poly(methyl vinyl siloxane) Conductive Composites

Chem. J. Chinese Universities ›› 2006, Vol. 27 ›› Issue (5): 988.doi:

Effect of Crosslinking Agent Amount on Uniaxial Piezoresistivity of Carbon
Black Filled Poly(methyl vinyl siloxane) Conductive Composites

CHEN Yong-Liang¹, SONG Yi-Hu¹, ZHENG Qiang^1,2*, ZHANG Ming-Qiu³

1. Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China;
2. State Key Laboratory of Fluid Power Control and Transmission, Zhejiang University, Hangzhou 310027, China;
3. Materials Science Institute, Zhongshan University, Guangzhou 510275, China

Received:1900-01-01 Revised:1900-01-01 Online:2006-05-10 Published:2006-05-10
Contact: ZHENG Qiang

Abstract

Abstract:

The effect of crosslinking degree on the piezoresistive behavior of carbon black (CB) filled poly(methyl vinyl siloxane) (PMVS) vulcanites under uniaxial compression was studied. The results reveal that increasing the amount of crosslinking agent could weaken the negative pressure coefficient of resistance (NPCR) effect at the late stage of compression and enhance the piezoresistivity intensity at a high stresses. The recovery property of resistance was related to the content of CB, the stress level and the degree of crosslinking. It was proved that repeated compression with the same maximum stress level could improve piezoresistive stability considerably.

Key words: Poly(methyl vinyl siloxane); Carbon black; Piezoresistive behavior; Crosslinking agent

CLC Number:

O631
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O631

TrendMD:

CHEN Yong-Liang¹, SONG Yi-Hu¹, ZHENG Qiang^1,2*, ZHANG Ming-Qiu³

. Effect of Crosslinking Agent Amount on Uniaxial Piezoresistivity of Carbon
Black Filled Poly(methyl vinyl siloxane) Conductive Composites[J]. Chem. J. Chinese Universities, 2006, 27(5): 988.

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