TY - JOUR
T1 - Piezo-resistance effect in composite based on cross-linked polydimethylsiloxane and polyaniline
T2 - Potential pressure sensor application
AU - Del Castillo-Castro, T.
AU - Castillo-Ortega, M. M.
AU - Encinas, J. C.
AU - Herrera Franco, P. J.
AU - Carrillo-Escalante, H. J.
N1 - Funding Information:
Acknowledgements T. del Castillo Castro thanks the financial support from the ‘‘Programa de Apoyo Complementario para la Consolidación Institucional de Grupos de Investigación’’ of ‘‘Consejo Nacional de Ciencia y Tecnología’’, Mexico. The authors also wish to thank Silva Burruel and Silvia Andrade for the SEM images.
PY - 2012/2
Y1 - 2012/2
N2 - Composites that incorporate an electrically conducting filler, the hydrochloric polyaniline (PANI-Cl), into hydroxy-terminated polydimethylsiloxane (HO-PDMS) matrix were evaluated for DC electrical, mechanical, thermal, morphological and piezo-resistive properties. The main focus of the study was on the electrical-mechanical behavior of these composites in view of possible piezo-resistive sensor application. The percolation threshold of conductivity was determined to be around 11.5 wt% of PANI-Cl. Compression/expansion cyclic experiments showed that the filler content modified the stiffness, the magnitude of Mullins effect and the hysteresis behavior in elastomeric composites. The piezo-resistive response of composites differed depending on the sample composition and also, on the strain rate. Composites with concentration above the percolation threshold exhibited at least three-order change of its electrical resistance in a narrow interval of maximum 2% of deformation. The piezo-resistive sensitivity and the reproducibility of
AB - Composites that incorporate an electrically conducting filler, the hydrochloric polyaniline (PANI-Cl), into hydroxy-terminated polydimethylsiloxane (HO-PDMS) matrix were evaluated for DC electrical, mechanical, thermal, morphological and piezo-resistive properties. The main focus of the study was on the electrical-mechanical behavior of these composites in view of possible piezo-resistive sensor application. The percolation threshold of conductivity was determined to be around 11.5 wt% of PANI-Cl. Compression/expansion cyclic experiments showed that the filler content modified the stiffness, the magnitude of Mullins effect and the hysteresis behavior in elastomeric composites. The piezo-resistive response of composites differed depending on the sample composition and also, on the strain rate. Composites with concentration above the percolation threshold exhibited at least three-order change of its electrical resistance in a narrow interval of maximum 2% of deformation. The piezo-resistive sensitivity and the reproducibility of
UR - http://www.scopus.com/inward/record.url?scp=84857659175&partnerID=8YFLogxK
U2 - 10.1007/s10853-011-5965-y
DO - 10.1007/s10853-011-5965-y
M3 - Artículo
SN - 0022-2461
VL - 47
SP - 1794
EP - 1802
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 4
ER -