In situ zwitterionic supramolecular gel lubricants for significantly improved tribological properties

Qiangliang Yu; Guowei Huang; Meirong Cai; Feng Zhou; Weimin Liu

doi:10.1016/j.triboint.2015.10.032

In situ zwitterionic supramolecular gel lubricants for significantly improved tribological properties

Qiangliang Yu, Guowei Huang, Meirong Cai, Feng Zhou, Weimin Liu

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

66 Scopus citations

Abstract

We report a new type of zwitterionic gelator, which cannot only gelate base lubricating oils by supramolecular self-assembly, but be used as additive in oils for significantly improved the tribological performances. The self-assembly mechanism is confirmed by NMR. The as-prepared zwitterionic gels have good thermoreversible and thixotropic characteristics, which make them as potential high performance semi-solid lubricants. The tribological results showed that the gel lubricants possessed excellent friction-reducing and anti-wear properties compared with blank 500SN and Li-base grease with 2 wt% MoS₂. The morphologies of the worn surfaces were analyzed by scanning electron microscope (SEM). The lubrication mechanism is proposed according to in-situ electrical contact resistance and the surface composition analysis at the worn surfaces.

Original language	English
Pages (from-to)	55-65
Number of pages	11
Journal	Tribology International
Volume	95
DOIs	https://doi.org/10.1016/j.triboint.2015.10.032
State	Published - 1 Mar 2016
Externally published	Yes

Keywords

Boundary film
Friction reduction and anti-wear
Gel lubricants
Zwitterionic Gelator

Access to Document

10.1016/j.triboint.2015.10.032

Cite this

@article{6ae88dc74c9a498ea08137a5d542b5fb,

title = "In situ zwitterionic supramolecular gel lubricants for significantly improved tribological properties",

abstract = "We report a new type of zwitterionic gelator, which cannot only gelate base lubricating oils by supramolecular self-assembly, but be used as additive in oils for significantly improved the tribological performances. The self-assembly mechanism is confirmed by NMR. The as-prepared zwitterionic gels have good thermoreversible and thixotropic characteristics, which make them as potential high performance semi-solid lubricants. The tribological results showed that the gel lubricants possessed excellent friction-reducing and anti-wear properties compared with blank 500SN and Li-base grease with 2 wt% MoS2. The morphologies of the worn surfaces were analyzed by scanning electron microscope (SEM). The lubrication mechanism is proposed according to in-situ electrical contact resistance and the surface composition analysis at the worn surfaces.",

keywords = "Boundary film, Friction reduction and anti-wear, Gel lubricants, Zwitterionic Gelator",

author = "Qiangliang Yu and Guowei Huang and Meirong Cai and Feng Zhou and Weimin Liu",

year = "2016",

month = mar,

day = "1",

doi = "10.1016/j.triboint.2015.10.032",

language = "英语",

volume = "95",

pages = "55--65",

journal = "Tribology International",

issn = "0301-679X",

publisher = "Elsevier Inc.",

}

TY - JOUR

T1 - In situ zwitterionic supramolecular gel lubricants for significantly improved tribological properties

AU - Yu, Qiangliang

AU - Huang, Guowei

AU - Cai, Meirong

AU - Zhou, Feng

AU - Liu, Weimin

PY - 2016/3/1

Y1 - 2016/3/1

N2 - We report a new type of zwitterionic gelator, which cannot only gelate base lubricating oils by supramolecular self-assembly, but be used as additive in oils for significantly improved the tribological performances. The self-assembly mechanism is confirmed by NMR. The as-prepared zwitterionic gels have good thermoreversible and thixotropic characteristics, which make them as potential high performance semi-solid lubricants. The tribological results showed that the gel lubricants possessed excellent friction-reducing and anti-wear properties compared with blank 500SN and Li-base grease with 2 wt% MoS2. The morphologies of the worn surfaces were analyzed by scanning electron microscope (SEM). The lubrication mechanism is proposed according to in-situ electrical contact resistance and the surface composition analysis at the worn surfaces.

AB - We report a new type of zwitterionic gelator, which cannot only gelate base lubricating oils by supramolecular self-assembly, but be used as additive in oils for significantly improved the tribological performances. The self-assembly mechanism is confirmed by NMR. The as-prepared zwitterionic gels have good thermoreversible and thixotropic characteristics, which make them as potential high performance semi-solid lubricants. The tribological results showed that the gel lubricants possessed excellent friction-reducing and anti-wear properties compared with blank 500SN and Li-base grease with 2 wt% MoS2. The morphologies of the worn surfaces were analyzed by scanning electron microscope (SEM). The lubrication mechanism is proposed according to in-situ electrical contact resistance and the surface composition analysis at the worn surfaces.

KW - Boundary film

KW - Friction reduction and anti-wear

KW - Gel lubricants

KW - Zwitterionic Gelator

UR - http://www.scopus.com/inward/record.url?scp=84947804548&partnerID=8YFLogxK

U2 - 10.1016/j.triboint.2015.10.032

DO - 10.1016/j.triboint.2015.10.032

M3 - 文章

AN - SCOPUS:84947804548

SN - 0301-679X

VL - 95

SP - 55

EP - 65

JO - Tribology International

JF - Tribology International

ER -

In situ zwitterionic supramolecular gel lubricants for significantly improved tribological properties

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this