Influence of micronized waste tire rubber on the mechanical and tribological properties of epoxy composite coatings. (June 2020)

• Record Type: Journal Article
• Authors: Adesina, Akeem Yusuf; Zainelabdeen, Ibrahim H.; Dalhat, M.A.; Mohammed, Abdul Samad; Sorour, Ahmad A.; Al-Badour, Fadi A.
• Is Part Of: Tribology international. Volume 146(2020)
• Publication Date: 2020-06
• Subjects: Tribology -- Composite -- Epoxy coating -- Waste tire rubber; Tribology -- Periodicals; 621.89
• DOI: 10.1016/j.triboint.2020.106244
• Languages: English
• ISSNs: 0301-679X

Abstract

Abstract: Epoxy coatings reinforced with 1–20 wt% micronized waste tire rubber (WTR) for improved mechanical and tribological properties were investigated. The hardness was improved as compared to the pristine epoxy coating by 22% at an optimum loading of 5 wt% WTR. The coefficient of friction of the epoxy composite coatings reduced considerably after reinforcing with WTR for all loadings. Similarly, the wear resistance was improved by over 70% for up to a loading of 10 wt% WTR. However, the mechanical and wear properties deteriorated at higher WTR loadings. The WTR reinforced epoxy coatings exhibited promising properties at optimum loading of 5 wt%. The effect of load, sliding speed, temperature and the ensuing wear mechanisms were analyzed and discussed. Graphical abstract: Image 1 Highlights: Novel epoxy composite coatings reinforced with waste tire rubber was developed. Coefficient of friction of the epoxy composite coatings was reduced by up to 20%. Specific wear rate was reduced by over 70% for up to 10 wt% reinforcement. Composite coating reinforced with 5 wt% exhibits optimum properties and performance. Sliding speed has greater influence on the specific wear rate than applied load.