Synergistic Effects between Phosphonium-Alkylphosphate Ionic Liquids and Zinc Dialkyldithiophosphate (ZDDP) as Lubricant Additives

Jun Qu; William C. Barnhill; Huimin Luo; Harry M. Meyer; Donovan N. Leonard; Alexander K. Landauer; Bassem Kheireddin; Hong Gao; Brian L. Papke; Sheng Dai

doi:10.1002/adma.201502037

Synergistic Effects between Phosphonium-Alkylphosphate Ionic Liquids and Zinc Dialkyldithiophosphate (ZDDP) as Lubricant Additives

Jun Qu, William C. Barnhill, Huimin Luo, Harry M. Meyer, Donovan N. Leonard, Alexander K. Landauer, Bassem Kheireddin, Hong Gao, Brian L. Papke, Sheng Dai

Research output: Contribution to journal › Article › peer-review

183 Scopus citations

Abstract

Unique synergistic effects between phosphonium-alkylphosphate ionic liquids (ILs) and zinc dialkyldithiophosphate (ZDDP) are discovered when used together as lubricant additives, resulting in significant friction and wear reduction along with distinct tribofilm composition and mechanical properties. The synergism is attributed to the remarkably 30-70× higher-than-nominal concentrations of hypothetical new compounds (via anion exchange between IL and ZDDP) on the fluid surface/interface.

Original language	English
Pages (from-to)	4767-4774
Number of pages	8
Journal	Advanced Materials
Volume	27
Issue number	32
DOIs	https://doi.org/10.1002/adma.201502037
State	Published - Aug 1 2015

Keywords

ZDDP
friction and wear reductions
ionic liquids
lubricant additives
synergistic effects

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10.1002/adma.201502037

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title = "Synergistic Effects between Phosphonium-Alkylphosphate Ionic Liquids and Zinc Dialkyldithiophosphate (ZDDP) as Lubricant Additives",

abstract = "Unique synergistic effects between phosphonium-alkylphosphate ionic liquids (ILs) and zinc dialkyldithiophosphate (ZDDP) are discovered when used together as lubricant additives, resulting in significant friction and wear reduction along with distinct tribofilm composition and mechanical properties. The synergism is attributed to the remarkably 30-70× higher-than-nominal concentrations of hypothetical new compounds (via anion exchange between IL and ZDDP) on the fluid surface/interface.",

keywords = "ZDDP, friction and wear reductions, ionic liquids, lubricant additives, synergistic effects",

author = "Jun Qu and Barnhill, {William C.} and Huimin Luo and Meyer, {Harry M.} and Leonard, {Donovan N.} and Landauer, {Alexander K.} and Bassem Kheireddin and Hong Gao and Papke, {Brian L.} and Sheng Dai",

note = "Publisher Copyright: {\textcopyright} 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.",

year = "2015",

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doi = "10.1002/adma.201502037",

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T1 - Synergistic Effects between Phosphonium-Alkylphosphate Ionic Liquids and Zinc Dialkyldithiophosphate (ZDDP) as Lubricant Additives

AU - Qu, Jun

AU - Barnhill, William C.

AU - Luo, Huimin

AU - Meyer, Harry M.

AU - Leonard, Donovan N.

AU - Landauer, Alexander K.

AU - Kheireddin, Bassem

AU - Gao, Hong

AU - Papke, Brian L.

AU - Dai, Sheng

PY - 2015/8/1

Y1 - 2015/8/1

N2 - Unique synergistic effects between phosphonium-alkylphosphate ionic liquids (ILs) and zinc dialkyldithiophosphate (ZDDP) are discovered when used together as lubricant additives, resulting in significant friction and wear reduction along with distinct tribofilm composition and mechanical properties. The synergism is attributed to the remarkably 30-70× higher-than-nominal concentrations of hypothetical new compounds (via anion exchange between IL and ZDDP) on the fluid surface/interface.

AB - Unique synergistic effects between phosphonium-alkylphosphate ionic liquids (ILs) and zinc dialkyldithiophosphate (ZDDP) are discovered when used together as lubricant additives, resulting in significant friction and wear reduction along with distinct tribofilm composition and mechanical properties. The synergism is attributed to the remarkably 30-70× higher-than-nominal concentrations of hypothetical new compounds (via anion exchange between IL and ZDDP) on the fluid surface/interface.

KW - ZDDP

KW - friction and wear reductions

KW - ionic liquids

KW - lubricant additives

KW - synergistic effects

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U2 - 10.1002/adma.201502037

DO - 10.1002/adma.201502037

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AN - SCOPUS:84939558287

SN - 0935-9648

VL - 27

SP - 4767

EP - 4774

JO - Advanced Materials

JF - Advanced Materials

IS - 32

ER -

Synergistic Effects between Phosphonium-Alkylphosphate Ionic Liquids and Zinc Dialkyldithiophosphate (ZDDP) as Lubricant Additives

Abstract

Keywords

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