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Article

Damage Monitoring of Structural Resins Loaded with Carbon Fillers: Experimental and Theoretical Study

1
Department of Information and Electrical Engineering and Applied Mathematics, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano (SA), Italy
2
Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 84084 Fisciano (SA), Italy
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(3), 434; https://doi.org/10.3390/nano10030434
Received: 31 January 2020 / Revised: 21 February 2020 / Accepted: 28 February 2020 / Published: 29 February 2020
(This article belongs to the Special Issue Carbon Nanoparticles for Strain Sensing and Damage Monitoring)
In the present study, nanocomposite materials for structural applications with self-sensing properties are proposed. In particular, suitable processing of epoxy resins filled with carbon nanotubes and expanded graphite characterized by very different aspect ratio leads to nanocomposite systems with high glass transition temperatures and remarkable values of the gauge factor. In particular, this notable property ranges between four, for composites filled with one-dimensional nanofiller, and 39 for composites with two-dimensional (2D) graphite derivatives. The greater sensitivity of the 2D system against permanent deformations is interpreted on the basis of an empirical mathematical model and morphological descriptions. The larger inter-contact area among the graphite layers determines a larger contact resistance change than that occurring among carbon nanotubes. The proposed systems turn out to be very advantageous in strain-sensor applications where damage detection is a key requirement to guarantee the reliability of the structures and the safety of the end-users. View Full-Text
Keywords: carbon nanoparticles; damage detection; structural health monitoring; electrical properties carbon nanoparticles; damage detection; structural health monitoring; electrical properties
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MDPI and ACS Style

Spinelli, G.; Lamberti, P.; Tucci, V.; Guadagno, L.; Vertuccio, L. Damage Monitoring of Structural Resins Loaded with Carbon Fillers: Experimental and Theoretical Study. Nanomaterials 2020, 10, 434. https://doi.org/10.3390/nano10030434

AMA Style

Spinelli G, Lamberti P, Tucci V, Guadagno L, Vertuccio L. Damage Monitoring of Structural Resins Loaded with Carbon Fillers: Experimental and Theoretical Study. Nanomaterials. 2020; 10(3):434. https://doi.org/10.3390/nano10030434

Chicago/Turabian Style

Spinelli, Giovanni, Patrizia Lamberti, Vincenzo Tucci, Liberata Guadagno, and Luigi Vertuccio. 2020. "Damage Monitoring of Structural Resins Loaded with Carbon Fillers: Experimental and Theoretical Study" Nanomaterials 10, no. 3: 434. https://doi.org/10.3390/nano10030434

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