Application of soft X-ray absorption spectroscopy in chemical characterization of antiwear films generated by ZDDP Part II: the effect of detergents and dispersants
作者： Zhanfeng Yin , M. Kasrai , G.M. Bancroft , K. Fyfe , M.L. Colaianni
DOI: 10.1016/S0043-1648(96)07273-0
关键词: Zinc 、 Absorption spectroscopy 、 Inorganic chemistry 、 Absorption (chemistry) 、 XANES 、 Dispersant 、 Polyphosphate 、 Polyamide 、 Succinic anhydride 、 Chemistry
摘要: Abstract X-ray absorption near edge structure (XANES) spectroscopy has been used to study the chemical nature of antiwear films generated on steel surfaces using zinc dialkyldithiophosphates (ZDDPs), in presence detergents and dispersants. The spectra were recorded both total electron yield (TEY) fluorescence (FY) modes, investigate P,S, Ca O surface bulk, respectively. interaction a commercial secondary ZDDP with calcium sulphonate (neutral) detergent, phenate (basic) detergent polyisobutylene succinic anhydride polyamide dispersant examined. Using range concentrations, it found that interacts only at high concentration (≥2%), whereas affects film formation even low concentrations. strongest for dispersant. polyphosphate formed these additive have shorter chain length compared alone contain less unchanged ZDDP. These finding are discussed framework mechanism presented Part 1 this study.
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sci-hub.se 参考文章(29)
Fred G. Rounds, Additive Interactions and Their Effect on the Performance of a Zinc Dialkyl Dithiophosphate Tribology Transactions. ,vol. 21, pp. 91- 101 ,(1978) , 10.1080/05698197808982864
P.A. Willermet, D.P. Dailey, R.O. Carter, P.J. Schmitz, W. Zhu, Mechanism of formation of antiwear films from zinc dialkyldithiophosphates Tribology International. ,vol. 28, pp. 177- 187 ,(1995) , 10.1016/0301-679X(95)98965-G
Zhanfeng Yin, Masoud Kasrai, G.Michael Bancroft, Kim F. Laycock, Kim H. Tan, Chemical characterization of antiwear films generated on steel by zinc dialkyl dithiophosphate using X-ray absorption spectroscopy Tribology International. ,vol. 26, pp. 383- 388 ,(1993) , 10.1016/0301-679X(93)90076-D
Fred G. Rounds, Some Factors Affecting the Decomposition of Three Commercial Zinc Organodithiophosphates Tribology Transactions. ,vol. 18, pp. 79- 89 ,(1975) , 10.1080/05698197508982749
J.G. Chen, D.A. Fischer, J.H. Hardenbergh, R.B. Hall, A fluorescence-yield near-edge spectroscopy (FYNES) investigation of the reaction kinetics of NiO/Ni(100) with hydrogen Surface Science. ,vol. 279, pp. 13- 22 ,(1992) , 10.1016/0039-6028(92)90738-R
P. A. Willermet, J. M. Pieprzak, D. P. Dailey, R. O. Carter, N. E. Lindsay, L. P. Haack, J. E. deVries, The Composition of Surface Layers Formed in a Lubricated Cam/Tappet Contact Journal of Tribology-transactions of The Asme. ,vol. 113, pp. 38- 47 ,(1991) , 10.1115/1.2920601
Fred Rounds, Changes in friction and wear performance caused by interactions among lubricant additives Lubrication Science. ,vol. 1, pp. 333- 363 ,(1989) , 10.1002/LS.3010010404
E.S Forbes, A.J Groszek, E.L Neustadter, Adsorption studies on lubricating oil additives joint international conference on information sciences. ,vol. 33, pp. 629- ,(1970) , 10.1016/0021-9797(70)90018-4
Nicholas E. Gallopoulos, Chester K. Murphy, Interactions Between a Zinc Dialkylphosphorodithioate and Lubricating Oil Dispersants Tribology Transactions. ,vol. 14, pp. 1- 7 ,(1971) , 10.1080/05698197108983221
H. Spedding, R.C. Watkins, The antiwear mechanism of zddp's. Part I Tribology International. ,vol. 15, pp. 13- 15 ,(1982) , 10.1016/0301-679X(82)90101-3