Poly(ionic liquid)s as lubricant additives with insight into adsorption-lubrication relationship

Jian Wu; Yanlong Luo; Yifeng Chen; Xiaohua Lu; Xin Feng; Ningzhong Bao; Yijun Shi

doi:10.1016/j.triboint.2021.107278

Poly(ionic liquid)s as lubricant additives with insight into adsorption-lubrication relationship

Jian Wu, Yanlong Luo, Yifeng Chen, Xiaohua Lu, Xin Feng, Ningzhong Bao, Yijun Shi

College of Chemical Engineering

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

35 Scopus citations

Abstract

Ionic liquids (ILs) are very potential lubricant additives for their strong adsorption and tribochemical reactions at the interface. In this work, poly(ionic liquid) of PImC₆NTf₂ is used as lubricant additive in base oil of PEG, which can reduce the wear volume by around 65 times under 2.5 GPa. The lubricity is much more advantageous than the geminal dicationic IL of BIm₅-(NTf₂)₂. The adsorption strength of lubricants is studied by employing the microcalorimeter to evaluate the adsorption heat, AFM to test the adhesion force, and molecular dynamics simulation to calculate the interfacial binding energy. As a result, the adsorption strength of PImC₆NTf₂ is obviously higher than BIm₅-(NTf₂)₂, and the lubricity is strongly dependent on the adsorption strength of ILs.

Original language	English
Article number	107278
Journal	Tribology International
Volume	165
DOIs	https://doi.org/10.1016/j.triboint.2021.107278
State	Published - Jan 2022

Keywords

Adsorption
Friction and wear
Lubricant additive
Poly(ionic liquid)s

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10.1016/j.triboint.2021.107278

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title = "Poly(ionic liquid)s as lubricant additives with insight into adsorption-lubrication relationship",

abstract = "Ionic liquids (ILs) are very potential lubricant additives for their strong adsorption and tribochemical reactions at the interface. In this work, poly(ionic liquid) of PImC6NTf2 is used as lubricant additive in base oil of PEG, which can reduce the wear volume by around 65 times under 2.5 GPa. The lubricity is much more advantageous than the geminal dicationic IL of BIm5-(NTf2)2. The adsorption strength of lubricants is studied by employing the microcalorimeter to evaluate the adsorption heat, AFM to test the adhesion force, and molecular dynamics simulation to calculate the interfacial binding energy. As a result, the adsorption strength of PImC6NTf2 is obviously higher than BIm5-(NTf2)2, and the lubricity is strongly dependent on the adsorption strength of ILs.",

keywords = "Adsorption, Friction and wear, Lubricant additive, Poly(ionic liquid)s",

author = "Jian Wu and Yanlong Luo and Yifeng Chen and Xiaohua Lu and Xin Feng and Ningzhong Bao and Yijun Shi",

note = "Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2022",

month = jan,

doi = "10.1016/j.triboint.2021.107278",

language = "英语",

volume = "165",

journal = "Tribology International",

issn = "0301-679X",

publisher = "Elsevier Inc.",

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TY - JOUR

T1 - Poly(ionic liquid)s as lubricant additives with insight into adsorption-lubrication relationship

AU - Wu, Jian

AU - Luo, Yanlong

AU - Chen, Yifeng

AU - Lu, Xiaohua

AU - Feng, Xin

AU - Bao, Ningzhong

AU - Shi, Yijun

PY - 2022/1

Y1 - 2022/1

N2 - Ionic liquids (ILs) are very potential lubricant additives for their strong adsorption and tribochemical reactions at the interface. In this work, poly(ionic liquid) of PImC6NTf2 is used as lubricant additive in base oil of PEG, which can reduce the wear volume by around 65 times under 2.5 GPa. The lubricity is much more advantageous than the geminal dicationic IL of BIm5-(NTf2)2. The adsorption strength of lubricants is studied by employing the microcalorimeter to evaluate the adsorption heat, AFM to test the adhesion force, and molecular dynamics simulation to calculate the interfacial binding energy. As a result, the adsorption strength of PImC6NTf2 is obviously higher than BIm5-(NTf2)2, and the lubricity is strongly dependent on the adsorption strength of ILs.

AB - Ionic liquids (ILs) are very potential lubricant additives for their strong adsorption and tribochemical reactions at the interface. In this work, poly(ionic liquid) of PImC6NTf2 is used as lubricant additive in base oil of PEG, which can reduce the wear volume by around 65 times under 2.5 GPa. The lubricity is much more advantageous than the geminal dicationic IL of BIm5-(NTf2)2. The adsorption strength of lubricants is studied by employing the microcalorimeter to evaluate the adsorption heat, AFM to test the adhesion force, and molecular dynamics simulation to calculate the interfacial binding energy. As a result, the adsorption strength of PImC6NTf2 is obviously higher than BIm5-(NTf2)2, and the lubricity is strongly dependent on the adsorption strength of ILs.

KW - Adsorption

KW - Friction and wear

KW - Lubricant additive

KW - Poly(ionic liquid)s

UR - http://www.scopus.com/inward/record.url?scp=85114990602&partnerID=8YFLogxK

U2 - 10.1016/j.triboint.2021.107278

DO - 10.1016/j.triboint.2021.107278

M3 - 文章

AN - SCOPUS:85114990602

SN - 0301-679X

VL - 165

JO - Tribology International

JF - Tribology International

M1 - 107278

ER -

Poly(ionic liquid)s as lubricant additives with insight into adsorption-lubrication relationship

Abstract

Keywords

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