作者: Javier Vicente , P. Costa , S. Lanceros-Mendez , Jose Manuel Abete , Aitzol Iturrospe
DOI: 10.3390/MA12213545
关键词: Filler (packaging) 、 Nanocomposite 、 Polymer 、 Materials science 、 Composite material 、 Carbon nanotube 、 Piezoresistive effect 、 Oxide 、 Percolation threshold 、 Graphene
摘要: Polymer-based composites reinforced with nanocarbonaceous materials can be tailored for functional applications. Poly(vinylidene fluoride) (PVDF) carbon nanotubes (CNT) or graphene different filler contents have been developed as potential piezoresistive materials. The mechanical properties of the nanocomposites depend on PVDF matrix, type, and content. 6010 is a relatively more ductile material, whereas PVDF-HFP (hexafluropropylene) shows larger maximum strain near 300% CNT, 10 times higher than pristine polymer. This behavior similar all CNT. On other hand, reduced oxide (rGO)/PVDF decrease compared to neat PVDF. It shown that use copolymers does not influence electrical composites. CNT leads percolation threshold around 0.5 wt.%, rGO show at ≈ 2 wt.%. Both present excellent linearity between applied pressure resistance variation, sensibility (PS) decreasing pressure, from PS 1.1 0.2 MPa−1. A proof concept demonstration presented, showing suitability industrial sensing