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

Chang Liu, Ivan Sergeichev, Iskander Akhatov, Khalid Lafdi

    Research output: Contribution to journalArticlepeer-review

    32 Citations (Scopus)

    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.

    Original languageEnglish
    Pages (from-to)111-118
    Number of pages8
    JournalComposites Science and Technology
    Volume159
    DOIs
    Publication statusPublished - 3 May 2018

    Keywords

    • Acid penetration
    • Computational modeling
    • Sensing
    • SHM

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