Improving tribological performance of epoxy composite by reinforcing with polyetheramine-functionalized graphene oxide

Tianjiao Bao, Zhiyong Wang, Yan Zhao, Yan Wang, Xiaosu Yi

Research output: Journal PublicationArticlepeer-review

10 Citations (Scopus)

Abstract

In order to be used as matrix of lubricating material, epoxy resin needs to be modified to enhance its tribological properties. In this study, polyetheramine-functionalized graphene oxide was used to prepare epoxy composite. The mechanical properties, thermal properties and friction properties of composite materials with different types and contents of fillers were studied. 0.2 wt% polyetheramine-functionalized graphene oxide/epoxy composite exhibited the best tribological performance, that is, friction coefficient decreased by 54% and wear rate dropped by 94% compared with pure resin. The wear rate was reduced by 67%-94% in a wide content range (from 0.1 wt% to 0.4 wt%). Simultaneously, modified GO also enhanced thermal stability, and mechanical properties, including tensile strength, Young's modulus, elongation at break and microhardness due to enhanced dispersity and interface interaction in matrix. The excellent lubrication and anti-wear properties was attribute to the benign interaction of the composite and transfer film. It was further proved that polyetheramine modified graphene could improve the tribological properties of epoxy resin under heavy load and high slipping speed. The results showed a prospect to the practical applications of graphene and solve wear-related mechanical failures of epoxy resin.

Original languageEnglish
Pages (from-to)1516-1529
Number of pages14
JournalJournal of Materials Research and Technology
Volume12
DOIs
Publication statusPublished - 2021
Externally publishedYes

Keywords

  • Epoxy composite
  • Graphene
  • Tribological property

ASJC Scopus subject areas

  • Ceramics and Composites
  • Biomaterials
  • Surfaces, Coatings and Films
  • Metals and Alloys

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