二烷基二硫代磷酸锑添加剂的抗磨协同效应

利用四球试验机评价了二烷基二硫代磷酸锑（sbDDP）与含磷摩擦改进剂（TPO）、氯化石蜡（T301）、硫化异丁烯（T321）3种添加剂的极压和抗磨性能，以及它们之间的极压和抗磨协同作用；利用市售演示仪评价了SbD-DP、T301和T321之间的协同抗擦伤能力。结果表明：sbDDP和TPO、T301、T321分别体现出了不同程度的抗磨协同效果，其中以SbDDP和T301的协同效果最好；但在极压性能上，不仅没有产生协同作用，而且SbDDP和TPO复合后还表现出了对抗效应。另外，在抗擦伤能力上，sbDDP和T321表现出了较好的协同作用，而SbDDP和T301则表现出了对抗作用。然而当SbDDP和T301、T321复合使用后，不仅表现出很好的抗磨协同作用，而且表现出很好的抗擦伤能力，尤其当活性元素浓度达到最佳配比时，效果最为明显。

THE SYNERGISTIC EFFECT OF ANTIWEAR PROPERTIES OF ANTIMONY DIALKYLDITHIOPHOSPHATE

A four ball tester was used to evaluate the antiwear and extreme pressure properties of antimony dialkyldithiophosphate(SbDDP) with friction reducer containing phosphorus(TPO), chlorinated paraffin(T301) and sulfurized isobutylene (T321), and their synergistic effects. The synergistic scuffing resistance of SbDDP with T301 and T321 was also evaluated. The results show that SbDDP exhibits better antiwear synergism with TPO, T301 and T321 respectively, especially, the synergistic effect of SbDDP with T301 is the best. Moreover, data from scuffing resistance show SbDDP with T321 exhibits good synergistic effect,but SbDDP with T301 exhibits antagonistic effect. However, the combination of SbDDP with T301 and T321 exhibits not only good synergistic antiwear effect but also excellent scuffing resistance, especially, the synergistic effect is very obvious when the concentration of active elements attains optimal proportionment.