PIEZORESISTIVE PROPERTIES OF MULTI-WALLED CARBON NANOTUBE-POLY(DIMETHYLSILOXANE) COMPOSITES FOR LOW-PRESSURE-SENSING APPLICATIONS

被引：3
作者：
Kwon, Su Yong [1 ]
Park, Yon Kyu [1 ]
Kim, Min Seok [1 ]
机构：
[1] Korea Res Inst Stand & Sci, Div Phys Metrol, Taejon 305340, South Korea
来源：
NANO | 2012年 / 7卷 / 01期
关键词：
Piezoresistive properties; CNT-polymer composites; percolating threshold; ELECTRICAL-PROPERTIES; CONDUCTIVITY; NANOTUBES;
D O I：
10.1142/S1793292012500051
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Low-pressure-sensitive composites using multi-walled carbon nanotubes as a conductive filler and poly(dimethylsiloxane) as a polymer matrix have been fabricated, and their electrical and piezoresistive properties have been studied. A large aspect ratio of the MWCNTs was used to achieve good electrical properties of the composite, which led to a significant decrease in the percolation threshold and an increase in the electrical conductivity for very low MWCNT loadings. The piezoresistive properties of the composites at <1.2 MPa were studied, which showed that the resistance-pressure sensitivity of the composites could be modulated by varying the MWCNT loading in the PDMS matrix.
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页数：5
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