4Spikes H. The History and Mechanisms of ZDDP[ J]. Tri- bology Letters , 2004, 17(3) : 469 -489.
5Mortier R M, Fox M F, Orszulik S T. Chemistry and Teeh- nology of Lubricants [ M ]. 3rd Edition. Springer Press, 2010:95 - 103.
6Barnes A M,Bartle K D,Thibon V R A. A Review of Zinc Dialkyldithiophosphates ( ZDDPs ) : Characterisation and Role in the Lubricating Oil [ J ]. Tribology International, 2001,34 : 389 - 395.
