Improving tribological performance of epoxy composite by reinforcing with polyetheramine-functionalized graphene oxide
| Autor: | Yan Wang, Tianjiao Bao, Xiaosu Yi, Zhiyong Wang, Yan Zhao |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Composite number Oxide Epoxy composite 02 engineering and technology 01 natural sciences Indentation hardness law.invention Biomaterials chemistry.chemical_compound law 0103 physical sciences Ultimate tensile strength Tribological property Thermal stability Composite material 010302 applied physics Mining engineering. Metallurgy Graphene TN1-997 Metals and Alloys Epoxy Tribology 021001 nanoscience & nanotechnology Surfaces Coatings and Films chemistry visual_art Ceramics and Composites visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | Journal of Materials Research and Technology, Vol 12, Iss, Pp 1516-1529 (2021) |
| ISSN: | 2238-7854 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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