The emulsifying and tribological properties of modified graphene oxide in oil-in-water emulsion

Yinglei Wu, Xiangqiong Zeng, Tianhui Ren, Erik G. de Vries, Emile van der Heide

Research output: Contribution to journalArticleAcademicpeer-review

23 Citations (Scopus)

Abstract

Graphene oxide (GO) was asymmetric chemically modified with myristyltrimethylammonium bromide (TTAB) to get modified graphene oxide (MGO). This MGO was used as an emulsifier and additive in oil-in-water emulsion. The emulsifying tests showed MGO greatly improved the stability of base emulsion and decreased its droplets size. Tribological test results showed that under the boundary lubrication condition with MGO-emulsion, the friction coefficient (COF) and the wear rate of the steel ball were decreased by about 18% and 48% respectively, comparing with base emulsion lubrication. The tribological mechanism of MGO-emulsion could be explained by the strong film-forming ability on the metal surface; the good lubricity of its small droplets; the formed adsorption film, transfer film and tribofilm between the contact surfaces.
Original languageEnglish
Pages (from-to)304-316
JournalTribology international
Volume105
DOIs
Publication statusPublished - 2017

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Graphite
Emulsions
Oxides
Graphene
emulsions
graphene
Oils
oils
oxides
Water
water
Lubrication
boundary lubrication
Steel
lubrication
Bromides
coefficient of friction
metal surfaces
balls
bromides

Keywords

  • METIS-320745
  • IR-103330

Cite this

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title = "The emulsifying and tribological properties of modified graphene oxide in oil-in-water emulsion",
abstract = "Graphene oxide (GO) was asymmetric chemically modified with myristyltrimethylammonium bromide (TTAB) to get modified graphene oxide (MGO). This MGO was used as an emulsifier and additive in oil-in-water emulsion. The emulsifying tests showed MGO greatly improved the stability of base emulsion and decreased its droplets size. Tribological test results showed that under the boundary lubrication condition with MGO-emulsion, the friction coefficient (COF) and the wear rate of the steel ball were decreased by about 18{\%} and 48{\%} respectively, comparing with base emulsion lubrication. The tribological mechanism of MGO-emulsion could be explained by the strong film-forming ability on the metal surface; the good lubricity of its small droplets; the formed adsorption film, transfer film and tribofilm between the contact surfaces.",
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The emulsifying and tribological properties of modified graphene oxide in oil-in-water emulsion. / Wu, Yinglei; Zeng, Xiangqiong; Ren, Tianhui; de Vries, Erik G.; van der Heide, Emile.

In: Tribology international, Vol. 105, 2017, p. 304-316.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - The emulsifying and tribological properties of modified graphene oxide in oil-in-water emulsion

AU - Wu, Yinglei

AU - Zeng, Xiangqiong

AU - Ren, Tianhui

AU - de Vries, Erik G.

AU - van der Heide, Emile

PY - 2017

Y1 - 2017

N2 - Graphene oxide (GO) was asymmetric chemically modified with myristyltrimethylammonium bromide (TTAB) to get modified graphene oxide (MGO). This MGO was used as an emulsifier and additive in oil-in-water emulsion. The emulsifying tests showed MGO greatly improved the stability of base emulsion and decreased its droplets size. Tribological test results showed that under the boundary lubrication condition with MGO-emulsion, the friction coefficient (COF) and the wear rate of the steel ball were decreased by about 18% and 48% respectively, comparing with base emulsion lubrication. The tribological mechanism of MGO-emulsion could be explained by the strong film-forming ability on the metal surface; the good lubricity of its small droplets; the formed adsorption film, transfer film and tribofilm between the contact surfaces.

AB - Graphene oxide (GO) was asymmetric chemically modified with myristyltrimethylammonium bromide (TTAB) to get modified graphene oxide (MGO). This MGO was used as an emulsifier and additive in oil-in-water emulsion. The emulsifying tests showed MGO greatly improved the stability of base emulsion and decreased its droplets size. Tribological test results showed that under the boundary lubrication condition with MGO-emulsion, the friction coefficient (COF) and the wear rate of the steel ball were decreased by about 18% and 48% respectively, comparing with base emulsion lubrication. The tribological mechanism of MGO-emulsion could be explained by the strong film-forming ability on the metal surface; the good lubricity of its small droplets; the formed adsorption film, transfer film and tribofilm between the contact surfaces.

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KW - IR-103330

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DO - 10.1016/j.triboint.2016.10.024

M3 - Article

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EP - 316

JO - Tribology international

JF - Tribology international

SN - 0301-679X

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