Effect of amines on the antiwear properties of P‐containing compounds as oil additives | Zendy

Wan Yong | Zendy; Liu Weimin | Zendy; Ren Tianhui | Zendy; Xue Qunji | Zendy

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Effect of amines on the antiwear properties of P‐containing compounds as oil additives

Author(s) -

Wan Yong,

Liu Weimin,

Ren Tianhui,

Xue Qunji

Publication year - 1994

Publication title -

lubrication science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.632

H-Index - 36

eISSN - 1557-6833

pISSN - 0954-0075

DOI - 10.1002/ls.3010060306

Subject(s) - amine gas treating , x ray photoelectron spectroscopy , adsorption , primary (astronomy) , materials science , organic chemistry , chemistry , chemical engineering , physics , astronomy , engineering

This paper reports a study on the effects of concentration and the molecular structure of amines on the antiwear properties of TBP, TCP and TBPi, evaluated with a four‐ball machine. It was found that amines reduce the antiwear properties of P‐containing additives in the order primary>secondary>tertiary amine, and a critical amine concentration exists at which P‐containing additives lose their antiwear properties. XPS analysis indicated that the competitive adsorption of amines onto the rubbed surface causes a reduction of the antiwear properties of P‐containing additives.

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