Synthesis and tribological properties of
antimony N, N-diethanoldithiocarbamate
antimony N, N-diethanoldithiocarbamate
(1. College of Mechanical and Electrical Engineering,
Central South University,Changsha 410083, P.R.China；
2. College of Chemistry and Chemical Engineering,
Central South University，Changsha 410083，P.R.China)
Central South University,Changsha 410083, P.R.China；
2. College of Chemistry and Chemical Engineering,
Central South University，Changsha 410083，P.R.China)
Abstract: Antimony N, N-diethanoldithiocarbamate was synthesized with diethanolamine, antimony trioxide and carbon disulfide. The influences of temperature, reaction time, solvents and their dosages were investigated, and the optimum synthesis conditions were: reaction temperature 15～20℃,reaction time 2.5h,250mL CH3OH as solvent and the hot CH3OH as recrystallization solvent. Element analysis, IR, 1 HNMR and13 CNMR spectra were used to study its chemical composition and molecular structure. Antimony N, N-diethanoldithiocarbamate was added in the base oil, and its properties of wear resistance and extreme pressure were studied by FB, FD and WSD. The synthesis product behaves perfectly as wear resistance and extreme pressure additive and its extreme pressure property is superior to its wear resistance property. The mechanism of tribological action was discussed by using XPS and AES spectra, and the reason of good wear resistance and extreme pressure properties is that the synthesis product decompose element C, S and N.
Key words: N, N-diethanoldithiocarbamate; synthesis; mechanism of extreme pressure and wear resistance