Self-sensing nanocomposites in automotive/aeronautic field. (2021)

• Record Type: Journal Article
• Authors: Vertuccio, Luigi; Spinelli, Giovanni; Lamberti, Patrizia; Tucci, Vincenzo; Zarrelli, Mauro; Russo, Salvatore; Iannuzzo, Generoso; Guadagno, Liberata
• Is Part Of: Materials today. Volume 34(2021)Supplement Part 1
• Page Start: 125
• Page End: 127
• Publication Date: 2021
• Subjects: Self-sensing coating -- Carbon-carbon composites (CCCs) -- Smart materials -- Gauge factors -- Structural health monitoring; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.01.409
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Carbon Nanotubes have been incorporated in a resin-based on the bi-functional epoxy precursor diglycidyl ether of bisphenol A (DGEBA). Electrical measurements allowed evaluating the electric percolation curve with a value of electric percolation threshold detected around 0.015% by weight of multi-wall carbon nanotubes (MWCNTs). It has been found, by electro-mechanical tests, that the Gauge Factor (G.F.) decreases with increasing the carbon nanotubes percentage. Furthermore, the presence of a residual resistivity allows diagnosing permanent damage in the epoxy matrix. High piezoresistive performance (G.F. = 4.7) of the Carbon Fiber Reinforced Panels (CFRP) coated with the epoxy resin containing 0.1 wt% of MWCNT, has been obtained.