Abstract
We studied different long-chain ammonium ions intercalated zirconium phosphate α-ZrP,methylamine intercalated ZrP(MA-ZrP),tetramethylammonium hydroxide intercalated ZrP(TMAH-ZrP),dodecyltrimethylammonium bromide intercalated ZrP(DTAB-ZrP),and stearyl trimethyl ammonium bromide intercalated ZrP(STAB-ZrP)as grease co-additives in combination with isobutylene sulfide(SIB).The grease with co-additives displayed excellent extreme-pressure and anti-wear performance.Moreover,the combination of the longest chain ammonium ion intercalated zirconium phosphate,STAB-ZrP/SIB,had the best tribological properties.In comparison to α-ZrP,the advantage of STAB-ZrP was that it did not form a large area of the dense physical film like α-ZrP on the worn surface,but rather gave the SIB a chance to contact with the fresh metal surface to generate a chemical film.Therefore,the sub-micron physical film and nanoscale chemical film always exist side by side on the contact surface during the friction process.This intercalated α-ZrP/SIB additive has great potential for use in harsh operating conditions.
基金项目
国家自然科学基金(21978186)
国家自然科学基金(U21A20315)
Fund for Shanxi"1331"Project()
Pingdingshan University s Ph.D.Research Startup Fund Project(PXY-BSQD-2023009)
维普
万方数据