Abstract
A novel fullerene–styrene sulfonic acid copolymer was synthesized. The tribological properties of base stock (2 wt.% triethanolamine aqueous solution) containing the fullerene copolymer were measured using a four-ball tribotester. Experiments indicated that the anti-wear performance and load-carrying capacity of the base stock were raised and its friction coefficient was decreased. Then, the surface of worn scar was investigated by using electron probe microanalysis (EPMA) and X-ray photoelectron spectroscopy (XPS). Finally, its lubrication mechanism was deduced preliminarily.
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