TY - JOUR
T1 - Tribological behavior and action mechanism of several multiply-alkylated cyclopentanes as lubricants of a steel/steel system
AU - Gao, Ping
AU - Peng, Li
AU - Liu, Wei Min
PY - 2011/11
Y1 - 2011/11
N2 - A series of multiply-alkylated cyclopentanes (MACs) were synthesized. In comparision with perfluoropolyether (PFPE), these compounds as promising lubricants for steel/steel contact were evaluated by an SRV test rig in a ball-on-disc configuration. It is found that multiply-alkylated cyclopentanes had better antiwear ability than that of perfluoropolyether. The correlation between the chemical structure of the compounds and their friction-reducing and antiwear behaviors was discussed. An action mechanism of the lubricants was proposed, based on the observation and analysis of the morphologies of the worn steel surfaces with a scanning electron microscope, the analysis of the chemical states of the worn surfaces on an X-ray photoelectron spectroscope, and the datas of gel permeation chromatograph (GPC). In the beginning, boundary lubricating film of MACs was formed on the steel worn surface by physical adsorption, this contributed to reduced friction and wear. The generation of a boundary lubricating film containing Fe 2O 3 and polymer reduced friction and wear, while the reaction of MACs with the steel surface occurred at elevated temperature.
AB - A series of multiply-alkylated cyclopentanes (MACs) were synthesized. In comparision with perfluoropolyether (PFPE), these compounds as promising lubricants for steel/steel contact were evaluated by an SRV test rig in a ball-on-disc configuration. It is found that multiply-alkylated cyclopentanes had better antiwear ability than that of perfluoropolyether. The correlation between the chemical structure of the compounds and their friction-reducing and antiwear behaviors was discussed. An action mechanism of the lubricants was proposed, based on the observation and analysis of the morphologies of the worn steel surfaces with a scanning electron microscope, the analysis of the chemical states of the worn surfaces on an X-ray photoelectron spectroscope, and the datas of gel permeation chromatograph (GPC). In the beginning, boundary lubricating film of MACs was formed on the steel worn surface by physical adsorption, this contributed to reduced friction and wear. The generation of a boundary lubricating film containing Fe 2O 3 and polymer reduced friction and wear, while the reaction of MACs with the steel surface occurred at elevated temperature.
KW - Lubricant
KW - Multiply-alkylated cyclopentanes
KW - Tribological behavior
UR - http://www.scopus.com/inward/record.url?scp=84862913798&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:84862913798
SN - 1004-0595
VL - 31
SP - 546
EP - 550
JO - Mocaxue Xuebao/Tribology
JF - Mocaxue Xuebao/Tribology
IS - 6
ER -