04 32.76 aDiluted QDW618 water-based cutting fluid; bDiluted QDW618 water-based cutting fluid with nanographite additive. The cutting fluid owes its lubrication ability from the lubricating film between the cutter and workpiece. Nanographite particles possess the features of high-temperature
resistance and self-lubrication ability which favor the formation and strengthening of the lubricating film. Therefore, the nanographite additive improves apparently the lubrication performance of the water-based cutting fluid. Conclusions In this study, water-soluble nanographite was prepared through in situ emulsion polymerization. The graphite particles could disperse uniformly and steadily in aqueous environment after surface modification. The nanographite additive improved the friction-reducing and antiwear properties of the water-based cutting fluid. The mean friction coefficient
and WSD reduced by 44% (from 0.106 to 0.059) and 49% (from 1.27 to 0.65 mm), respectively. selleck kinase inhibitor The P B value increased from 784 to 883 N. Meanwhile, the small surface tension indicated the enhancement of wettability. In general, nanographite additive made up the defect of current water-based cutting fluid whose lubrication ability was not ideal. Authors’ information QC, XW, YL, and TY are graduate students, and ZW is a professor at the College of Science in China University of Petroleum (East China). Acknowledgments This work was supported by the Gold-idea Program of China University of Petroleum (grant no. JD1112-13) and the National University Student Innovation Program
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