A Facile and Effective Method to Improve the Dispersibility of WS2 Nanosheets in PAO8 for the Tribological Performances

Ruochong  Zhang; Dan  Qiao; Xuqing Liu; Zhiguang  Guo; Meirong  Cai; Lei Shi

doi:10.1016/j.triboint.2017.09.012

A Facile and Effective Method to Improve the Dispersibility of WS₂ Nanosheets in PAO8 for the Tribological Performances

Ruochong Zhang, Dan Qiao, Xuqing Liu, Zhiguang Guo, Meirong Cai, Lei Shi

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

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Abstract

The sedimentation of WS2 nanosheets in PAO8 is resolved by a facile method with the immobilization function of 1-methyl-2, 4-bis (Noctadecylurea) benzene (MOB), and tribological performance and mechanism of the composite lubricant are systematically investigated. Compared with blank PAO8, the composite lubricants have better tribological performance, which is attributed to the synergistic effect of WS2 and MOB. The immobilization function of MOB because of the network structure prevents the agglomeration and sedimentation of WS2 nanosheets. The boundary films, including tribochemical reaction film and physical absorbing film are formed on the surfaces of the friction pair during the friction process.

Original language	English
Pages (from-to)	60-70
Number of pages	10
Journal	Tribology International
Volume	118
Early online date	23 Sept 2017
DOIs	https://doi.org/10.1016/j.triboint.2017.09.012
Publication status	Published - Feb 2018

Keywords

dispersibility
WS2 nanosheets
Tribological performance
lubricating mechanism

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10.1016/j.triboint.2017.09.012

Tribo IntAccepted author manuscript, 2.48 MBLicence: CC BY-NC-ND

Cite this

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title = "A Facile and Effective Method to Improve the Dispersibility of WS2 Nanosheets in PAO8 for the Tribological Performances",

abstract = "The sedimentation of WS2 nanosheets in PAO8 is resolved by a facile method with the immobilization function of 1-methyl-2, 4-bis (Noctadecylurea) benzene (MOB), and tribological performance and mechanism of the composite lubricant are systematically investigated. Compared with blank PAO8, the composite lubricants have better tribological performance, which is attributed to the synergistic effect of WS2 and MOB. The immobilization function of MOB because of the network structure prevents the agglomeration and sedimentation of WS2 nanosheets. The boundary films, including tribochemical reaction film and physical absorbing film are formed on the surfaces of the friction pair during the friction process.",

keywords = "dispersibility , WS2 nanosheets , Tribological performance, lubricating mechanism",

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T1 - A Facile and Effective Method to Improve the Dispersibility of WS2 Nanosheets in PAO8 for the Tribological Performances

AU - Zhang, Ruochong

AU - Qiao, Dan

AU - Liu, Xuqing

AU - Guo, Zhiguang

AU - Cai, Meirong

AU - Shi, Lei

PY - 2018/2

Y1 - 2018/2

N2 - The sedimentation of WS2 nanosheets in PAO8 is resolved by a facile method with the immobilization function of 1-methyl-2, 4-bis (Noctadecylurea) benzene (MOB), and tribological performance and mechanism of the composite lubricant are systematically investigated. Compared with blank PAO8, the composite lubricants have better tribological performance, which is attributed to the synergistic effect of WS2 and MOB. The immobilization function of MOB because of the network structure prevents the agglomeration and sedimentation of WS2 nanosheets. The boundary films, including tribochemical reaction film and physical absorbing film are formed on the surfaces of the friction pair during the friction process.

AB - The sedimentation of WS2 nanosheets in PAO8 is resolved by a facile method with the immobilization function of 1-methyl-2, 4-bis (Noctadecylurea) benzene (MOB), and tribological performance and mechanism of the composite lubricant are systematically investigated. Compared with blank PAO8, the composite lubricants have better tribological performance, which is attributed to the synergistic effect of WS2 and MOB. The immobilization function of MOB because of the network structure prevents the agglomeration and sedimentation of WS2 nanosheets. The boundary films, including tribochemical reaction film and physical absorbing film are formed on the surfaces of the friction pair during the friction process.

KW - dispersibility

KW - WS2 nanosheets

KW - Tribological performance

KW - lubricating mechanism

U2 - 10.1016/j.triboint.2017.09.012

DO - 10.1016/j.triboint.2017.09.012

M3 - Article

SN - 0301-679X

VL - 118

SP - 60

EP - 70

JO - Tribology International

JF - Tribology International

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