Prevulcanized natural rubber and carbon black: High-deformation piezoresistive composites

•Material supports high deformation.•Easy preparation.•Material presents linear behavior: electrical resistance × mechanical deformation;•Its use can be in devices for the detection of human joints movement, among others. This work aimed at developing materials with the potential to be employed as h...

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Bibliographic Details
Published in:	Materials letters Vol. 253; pp. 427 - 429
Main Authors:	Deniz, Wellerson Davi Santos, Lima, Thalita Hellen Castro, Arlindo, Elen Poliani Silva, Junior, Gilberto Campos Fuzari
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 15-10-2019 Elsevier BV
Subjects:	Carbon black Composite Deformation resistance Materials science Natural rubber Piezoresistive sensor Polymer matrix composites Composite Piezoresistive sensor Natural rubber
Online Access:	Get full text
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Summary:	•Material supports high deformation.•Easy preparation.•Material presents linear behavior: electrical resistance × mechanical deformation;•Its use can be in devices for the detection of human joints movement, among others. This work aimed at developing materials with the potential to be employed as high-deformation piezoresistive sensors based on conductive polymer composites, from prevulcanized natural rubber (PNR) and carbon black (CB). Materials were obtained by casting in different volumetric ratios of PNR/CB. The composite of PNR with a 7% inclusion of CB showed great potential for use as an electromechanical sensor: a linear behavior of the electric resistance with the mechanical deformation in repeated cycles with an appreciable gauge factor.
ISSN:	0167-577X 1873-4979
DOI:	10.1016/j.matlet.2019.07.129