CNT and polyaniline based sensors for the detection of acid penetration in polymer composite

Liu, Chang, Sergeichev, Ivan, Akhatov, Iskander and Lafdi, Khalid (2018) CNT and polyaniline based sensors for the detection of acid penetration in polymer composite. Composites Science and Technology, 159. pp. 111-118. ISSN 0266-3538

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Official URL: https://doi.org/10.1016/j.compscitech.2018.02.028

Abstract

Today, polymer composites are used to store liquid chemicals. Monitoring their structural health is crucial. In this study, conductive nanocomposite-based sensors were designed to monitor acid penetration over time. The sensors were made using blends of epoxy resin and additives, such as polyaniline and carbon nanotube (CNT). It appeared that as the concentration of additives increased, the sensors' response time were shorter. The CNT-based nanocomposites had shown an especially high sensitivity. However, to track the acid penetration over time, polyaniline-based sensors seem more adequate. A simple kinetic model was developed to have a better understanding of sensor behavior.

Item Type: Article
Uncontrolled Keywords: Acid penetration, Sensing, SHM, Computational modeling
Subjects: F200 Materials Science
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Elena Carlaw
Date Deposited: 15 Nov 2019 15:42
Last Modified: 15 Nov 2019 15:42
URI: http://nrl.northumbria.ac.uk/id/eprint/41460

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