Enhanced Tribological Properties of Polymer Composite Coating Containing Graphene at Room and Elevated Temperatures
Source abstract
Abstract
To improve the tribology properties of the polymer coating under elevated temperature, the epoxy coating was reinforced with nano graphene. The micro-hardness, heat conductivity, and thermo-gravimetric properties of the coating were enhanced as filled graphene. The friction and wear properties of the polymer coating were studied using a pin-on-disc tribo-meter under room and elevated temperatures. The results showed that under room temperature, the friction coefficient and the wear rate of the coating adding 4.0 wt % graphene was 80% and 76% lower than that of the neat epoxy coating, respectively. As the test temperature increased, the friction coefficient of the graphene/polymer coatings decreased at first and then slightly increased. The friction coefficient was at its lowest value under 150 °C and then increased as the temperature rose to 200 °C. By adding 4.0 wt % graphene, the friction coefficient and wear rate of the polymer coating were further reduced, especially at elevated temperatures.
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Research context
OpenAlex topics: Tribology and Wear Analysis · Lubricants and Their Additives · Diamond and Carbon-based Materials Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China
Ningbo Zhongyi Hydraulic Motor Co., Ltd., Ningbo 315200, China
School of Automobile and Traffic Engineering, Panzhihua University, Panzhihua 617000, China
Funding
National Natural Science Foundation of China · China Postdoctoral Science Foundation · Shaanxi Provincial Education Department · Natural Science Fund Plan of Shaanxi Province
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