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Vol. 123, Issue 12, December 2010, pp.84-90

 

Bullet

Electrical Pressure Transducers Based on Graphene Oxide Polysiloxane Composites

 

1Antonio PELUSO, 2Mariano PALOMBA, 2Gianfranco CAROTENUTO, 1Francesca NICOLAIS

1 Department of Material Engineering and Production. University of Naples “Federico II”

Piazzale Tecchio, 80 – 80125 Napoli (Italy).

2 Institute of Composite and Biomedical Materials. National Research Council.

Piazzale Tecchio, 80 – 80125 Napoli (Italy)

 

 

Received: 14 September 2010   /Accepted: 21 December 2010   /Published: 28 December 2010

 

Abstract: Exfoliated graphite oxide embedded into a polysiloxane matrix can be simply obtained by sonochemical approach. These nanocomposites show an electrical conductivity depending on the applied stress and have most of crucial characteristics of an electrical pressure transducer (absence of electrical hysteresis, prompt resistivity variation, etc.). The highest sensitivity for these electrical devices is obtained with exfoliated graphene oxide concentration just a little inferior to the percolation threshold (that is, 5.5wt.% of graphene).

 

Keywords: Graphene, Pressure sensors, Elastomeric polymers, Polysiloxanes

 

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