摘要
介绍了无机和有机的锑化合物作为添加剂在润滑油脂中的基本性能和具体应用。无机的硫代锑酸锑(SbS-bS4)化合物具有优秀的极压、抗磨性能。SbSbS4与二硫化钼(MoS2)添加剂具有优秀的极压、抗磨协同效应,四球试验表明,两者复配使用,可显著提高烧结负荷和负荷磨损指数(即综合磨损值ZMZ),并大幅降低摩擦系数和长磨磨斑直径。有机的二烷基二硫代磷酸锑(SbDDP)和二烷基二硫代氨基甲酸锑(SbDDC)为多功能添加剂,具有极压、抗磨和抗氧化性能。SbDDC与硼酸盐添加剂具有极压协同作用,可以大幅度提高润滑脂的梯姆肯OK值;SbDDC还与有机钼添加剂,特别是二烷基二硫代氨基甲酸钼(MoDDC)具有极压、抗磨、腐蚀抑制等方面的协同效应,这对研制低噪音CVJ脂具有重要的意义;SbDDP可与二烷基二硫代磷酸锌(ZnDDP)、丙三醇形成一个稳定的三元极压协同体系,有效地提高润滑脂的梯姆肯OK值。另外,SbDDC还能与润滑脂中的染料发生反应,用作润滑脂的温度指示剂。
The basic performances and specific applications of inorganic and organic antimony- containing compounds in lubricating oil and grease are reviewed. Inorganic antimony thioantimonate （SbSbS4） exhibits excellent extreme-pressure （EP） and antiwear （AW） performances in lubricants. SbSbS4 and molybdenum disulfide （MoS2） are synergistic in EP and AW performances. The four- ball tests indicate, the combination of SbSbS4 and MoS2 can increase lubricants＇ weld load and load wear index greatly, and decrease the friction coefficient and wear scar obviously. Organo - antimony compounds, i.e. , antimony dialkyl dithiophosphate （SbD- DP） and antimony dialkyl dithiocarbamate （SbDDC）, are multi- function additives, which possess EP, AW and anti - oxidation performances. SbDDC and alkali - metal borate additive are EP synergistic in greases, which can increase the Timken OK load obviously. SbDDC is also synergistic with organo- molybdenum additives, especially molybdenum dialkyl dithiocarbamate （MoDDC）, in the EP, AW, corrosion inhibition and noise depressing performances, which is useful in developing low noise CVJ greases. SbDDP, zinc dialkyl dithiophospahate （ZnDDP） and glycerol can form a stable ternary synergistic system, which can increase the Timken OK load very effectively. In addition, SbDDC can react with a dye in grease and serve as a color temperature indicator for lubricating grease.
出处
《润滑油》
CAS
2006年第4期29-34,共6页
Lubricating Oil
关键词
硫代锑酸锑
二烷基二硫代磷酸锑
二烷基二硫代氨基甲酸锑
润滑脂
极压剂
抗磨剂
antimony thioantimonate
antimony dialkyl dithiophosphate
antimony dialkyl dithiocarbamate
grease
EP additive
antiwear additive
