Novel Preparation of Calcium Borate/Graphene Oxide Nanocomposites and Their Tribological Properties in Oil
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The calcium borate/graphene oxide (CB/GO) nanocomposites have been successfully prepared by a liquid phase-based ultrasonic-assisted stripping method, which were subsequently explored as lubricant additive. The structure and morphology of the as-prepared nanocomposites were characterized by FT-IR, XRD, Raman, TEM, EDS and TGA, revealing that CB nanoparticles were uniformly loaded on GO surfaces. The nanocomposites were highly dispersed into the base oil by sand milling. The tribological properties of CB/GO nanocomposites as lubricating oil additive were investigated using a four-ball machine, and the wear scar surfaces were observed by the 3D Laser Scanning Microscope. The results indicated that CB/GO nanocomposites were of excellent antifriction, antiwear ability and load-carrying capacity.
Keywordscalcium borate graphene oxide nanocomposites tribological properties
This work was supported by the Yangzhou University Talent Introduction Fund (2012), Yangzhou Key Research Project-Industry Foresight and General Key Technology (YZ2015020), Innovative Talent Program of Green Yang Golden Phoenix (yzlyjfjh2015CX073), Yangzhou Social Development Project (YZ2016072), Jiangsu Six Talent Peak Project (2014-XCL-013), Jiangsu Science and Technology Support Project (BE2014613) and Jiangsu Industrial-Academic-Research Prospective Joint Project (BY2016069-02). The data of this paper originated from the Test Center of Yangzhou University.