The piezoresistive behaviour of SEBS-CNTs nanocomposites was investigated to evaluate their. potential applications as strain sensors. Composites containing from 3%wt. to 7%wt. of CNTs were processed by injection moulding in order to evaluate the percolation threshold. The piezoresistive response under flexural strain of nanocomposites with a CNTs content above the percolation threshold was then studied. The nanocomposites showing the most promising performance were tested under cyclic conditions. Conductive tracks were then processed on nanocomposites surfaces (with 3 and 4% of CNTs) by means of a laser treatment. Samples with optimized laser tracks were then submitted to 1000 stretching/releasing cycles, showing improved piezoresistive performance.

Effect of long-term mechanical cycling and laser surface treatment on piezoresistive properties of SEBS-CNTs composites / Padovano, E.; Bonelli, M. E.; Veca, A.; De Meo, E.; Badini, C.. - In: REACTIVE & FUNCTIONAL POLYMERS. - ISSN 1381-5148. - 152:(2020), p. 104601. [10.1016/j.reactfunctpolym.2020.104601]

Effect of long-term mechanical cycling and laser surface treatment on piezoresistive properties of SEBS-CNTs composites

Padovano E.;Badini C.
2020

Abstract

The piezoresistive behaviour of SEBS-CNTs nanocomposites was investigated to evaluate their. potential applications as strain sensors. Composites containing from 3%wt. to 7%wt. of CNTs were processed by injection moulding in order to evaluate the percolation threshold. The piezoresistive response under flexural strain of nanocomposites with a CNTs content above the percolation threshold was then studied. The nanocomposites showing the most promising performance were tested under cyclic conditions. Conductive tracks were then processed on nanocomposites surfaces (with 3 and 4% of CNTs) by means of a laser treatment. Samples with optimized laser tracks were then submitted to 1000 stretching/releasing cycles, showing improved piezoresistive performance.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2829374