Effects of functionalised reduced graphene oxide on frictional and wear properties of epoxy resin. (February 2015)

• Record Type: Journal Article
• Authors: Shah, R.; Datashvili, T.; Cai, T.; Wahrmund, J.; Menard, B.; Menard, K. P.; Brostow, W.; Perez, J.
• Is Part Of: Materials research innovations. Volume 19:Number 2(2015)
• Page Start: 97
• Page End: 106
• Publication Date: 2015-02
• Subjects: Materials -- Research -- Periodicals; Matériaux -- Recherche -- Périodiques; 620.1105
• DOI: 10.1179/1433075X14Y.0000000220
• Languages: English
• ISSNs: 1432-8917

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <p>The effects of octadecylamine functionalised reduced graphene oxide (FRGO) on the frictional and wear properties of diglycidyl ether of bisphenol A epoxy are studied using pin on disc tribometry. The nanocomposites are prepared by adding 0·1, 0·2, 0·5 and 1·0 wt-% of FRGO to the epoxy. The addition of FRGO increases by more than an order of magnitude the sliding distance during which the dynamic friction is ≤0·1. After this distance, the friction sharply increases to the range of 0·4–0·5. We explain the increase in sliding distance during which the friction is low by formation of a transfer film from the nanocomposite to the pin. The wear rates in the low and high friction regimes are ∼1·5×10⁻⁴ and 5·5×10⁻⁴ mm³ N⁻¹ m⁻¹ respectively. The nanocomposites exhibit a 79% increase in Young's modulus with 0·5 wt-% of FRGO, and an increase in glass transition and thermal degradation temperatures.</p> </abstract>