Impact of Fatty Triamine on Friction Reduction Performance of MoDTC Lubrication Additive

被引：4

作者：

Oumahi, Camella ^{[1
]}

Le Mogne, Thierry ^{[2
]}

Aguilar-Tapia, Antonio ^{[3
]}

Charrin, Catherine ^{[4
]}

Geantet, Christophe ^{[1
]}

Afanasiev, Pavel ^{[1
]}

Thiebaut, Benoit ^{[4
]}

De Barros-Bouchet, Maria Isabel ^{[2
]}

机构：

[1] Univ Lyon 1, Inst Rech Catalyse & Environm Lyon IRCELYON, CNRS UMR5256, F-69100 Villeurbanne, France

[2] Ecole Cent Lyon, CNRS UMR5513, Lab Tribol & Dynam Syst, F-69134 Ecully, France

[3] UAR2607 CNRS Univ Grenoble Alpes, Inst Chim Mol Grenoble, F-38000 Grenoble, France

[4] TotalEnergies, OneTech, F-69360 Solaize, France

来源：

LUBRICANTS | 2022年 / 10卷 / 12期

关键词：

organic additives; tribochemistry; molybdenum-based additives; electron microscopy; EXAFS; ZDDP; MODIFIERS; AMINE; CARBON;

D O I：

10.3390/lubricants10120365

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The impact of a fatty triamine (Triameen YT) additive was investigated on the friction performance and stability of molybdenum dithiocarbamate (MoDTC) in the formulations containing polyalphaolefin synthetic base oil (PAO) and zinc dialkyldithiophosphate (ZDDP). Triamine has no significant effect when mixed with MoDTC and ZDDP, but it improves the performance of MoDTC alone. However, in the MoDTC-Triamine-PAO solutions, a chemical reaction easily occurred and a reddish precipitate was formed upon storage. According to IR, XPS, TEM, and XAS characterizations, this precipitate is poorly crystalline layered alkylammonium oxothiomolybdate. Formation of the precipitate impaired the tribological performance by decreasing the number of active species delivered at the sliding contact interface. However, low friction coefficients were recovered by redispersion of the precipitate in PAO.

引用

页数：12

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