Dynamic mechanical properties and corrosion resistance of epoxy coatings enhanced with MXene and diverse nano-fillers.

Saharudin, Mohd Shahneel; Nasir, Nur Ahza Che; Janjua, Ayyaz Ali; Okechukwu, Achukwu Emmanuel; Faisal, Nadimul Haque; Ahmad, Emy Zairah

Abstract

This comparative study explored the dynamic mechanical characteristics and resistance to corrosion of four distinct nanofillers; MXenes, Graphene Nanoplatelets (GNPs), Carbon Nanotubes (CNTs), and Halloysite Nanotubes (HNTs) within epoxy composites at low loading concentrations (0.1 wt.%). The study assessed the influence of nanofiller on dynamic mechanical properties, while Open Circuit Potential (OCP) and Tafel analyses were used to evaluate corrosion resistance of the coated samples. The dispersion analysis was carried out using both UV-Vis spectrophotometry and scanning electron microscope Scanning electron Microscopy (SEM) technique. It was observed, there is notable decrease in storage modulus arises from poor nanofiller dispersion within the matrix and limited interaction between nanofillers and polymer chains. The incorporation of nanofillers typically leads to an increase in Tg, as observed with the highest Tg value (83.79 °C) in the GNPs sample, indicating restricted molecular motion and reduced free volume due to filler dispersion, resulting in enhanced crosslinking and significant changes in polymer chain dynamics. The OCP curve significantly decreased for the MXenes/epoxy coating (from 0.1827 V to 0.0454 V), indicating increased coating stability and better corrosion resistance behaviour. However, further processing improvement is needed to enhance the dispersibility of MXenes in the polymer matrix, as shown by SEM images showing agglomerates within the nanocomposite sample.

Citation

SAHARUDIN, M.S., NASIR, N.A.C., JANJUA, A.A., OKECHUKWU, A.E., HAQUE, N.F. and AHMAD, E.Z. 2025. Dynamic mechanical properties and corrosion resistance of epoxy coatings enhanced with MXene and diverse nano-fillers. Solid state phenomena [online], 370, pages 25-32. Available from: https://doi.org/10.4028/p-2F2Syv

• Journal Article Type: Article
• Acceptance Date: Nov 2, 2024
• Online Publication Date: Mar 26, 2025
• Publication Date: Mar 31, 2025
• Deposit Date: Dec 13, 2024
• Publicly Available Date: May 8, 2025
• Journal: Solid state phenomena
• Print ISSN: 1012-0394
• Electronic ISSN: 1662-9779
• Publisher: Trans Tech Publications
• Peer Reviewed: Peer Reviewed
• Volume: 370
• Pages: 25-32
• ISBN: 9783036407715
• DOI: https://doi.org/10.4028/p-2F2Syv
• Keywords: Coatings; Epoxy coatings; Nano-fillers; Mechanical properties; Corrosion
• Public URL: https://rgu-repository.worktribe.com/output/2619798
• Additional Information: The files accompanying this output are presentation slides file only. The full conference paper has been published with the following citation: SAHARUDIN, M.S., NASIR, N.A.C., JANJUA, A.A., OKECHUKWU, A.E., HAQUE, N.F. and AHMAD, E.Z. 2024. Dynamic mechanical properties and corrosion resistance of epoxy coatings enhanced with MXene and diverse nano-fillers. In Sellés Cantó, M.Á. and Sánchez-Caballero, S. (eds.) Tribology in manufacturing processes and advanced surface engineering (10th ICTMP): selected peer-reviewed extended articles based on abstracts presented at the 10th International conference on tribology in manufacturing processes and advanced surface engineering (ICTMP2024), 26-28 June 2024, Alcoy, Spain. Scientific books collection, 179. Baech: Trans Tech Publications [online], pages 77-84. Available from: https://doi.org/10.4028/b-FWMJz3. (ISBN 9783036405117; eISBN 9783036415116); ; The abstract for this presentation has been published with the following citation: SAHARUDIN, M.S., NASIR, N.A.C., JANJUA, A.A., OKECHUKWU, A.E., HAQUE, N.F. and AHMAD, E.Z. 2024. Dynamic mechanical properties and corrosion resistance of epoxy coatings enhanced with MXene and diverse nano-fillers. In Sellés Cantó, M.Á. and Sánchez-Caballero, S. (eds.) Book of abstracts from the 10th International conference on tribology in manufacturing processes and advanced surface engineering (10th ICTMP 2024), 26-28 June 2024, Alcoy, Spain. Baech: Trans Tech Publications [online], page 54. Available from: https://doi.org/10.4028/b-9sEuzV. (ISBN 9783036405124; eISBN 9783036415123)