Supersensitive linear piezoresistive property in carbon nanotubes/silicone rubber nanocomposites

被引：117

作者：

Dang, Zhi-Min ^{[1
,2
]}

Jiang, Mei-Juan ^{[2
]}

Xie, Dan ^{[3
]}

Yao, Sheng-Hong ^{[2
]}

Zhang, Li-Qun ^{[1
]}

Bai, Jinbo ^{[4
]}

机构：

[1] Beijing Univ Chem Technol, Key Lab Beijing City Preparat & Proc Novel Polyme, Beijing 100029, Peoples R China

[2] Beijing Univ Chem Technol, Key Lab Minist Educ Nanomat, Beijing 100029, Peoples R China

[3] Tsinghua Univ, Inst Microelect, Beijing 100084, Peoples R China

[4] Ecole Cent Paris, CNRS, UMR 8579, Lab MSSMAT, F-92295 Chatenay Malabry, France

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 104卷 / 02期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2956605

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High-elasticity carbon nanotube/methylvinyl silicone rubber (CNT/VMQ) nanocomposite with a markedly sensitive linear piezoresistive behavior is fabricated by dispersing conductive multiwall carbon nanotubes (MWCNTs) with different aspect ratios (AR=50 and 500) into rubber matrix homogeneously. We disclose that the percolation threshold of the nanocomposites with MWCNTs at AR=50 is abnormally lower than that at AR=500; extremely sensitive positive-pressure coefficient effect of the resistance and excellent cyclic compression under low pressure are also observed in the MWCNT/VMQ nanocomposite with AR=50 MWCNTs at relatively low loading. These properties might originate from the special microstructure in the nanocomposites with AR=50 MWCNTs. The high-elasticity nanocomposite is very attracting for online compression stress monitoring in future engineering applications. (c) 2008 American Institute of Physics.

引用

页数：6

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