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

doi:10.1016/j.triboint.2016.10.024

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

Faculty of Engineering Technology

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

25 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 language	English
Pages (from-to)	304-316
Journal	Tribology international
Volume	105
DOIs	https://doi.org/10.1016/j.triboint.2016.10.024
Publication status	Published - 2017

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Keywords

METIS-320745
IR-103330

Cite this

Wu, Y., Zeng, X., Ren, T., de Vries, E. G., & van der Heide, E. (2017). The emulsifying and tribological properties of modified graphene oxide in oil-in-water emulsion. Tribology international, 105, 304-316. https://doi.org/10.1016/j.triboint.2016.10.024

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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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AU - Wu, Yinglei

AU - Zeng, Xiangqiong

AU - Ren, Tianhui

AU - de Vries, Erik G.

AU - van der Heide, Emile

PY - 2017

Y1 - 2017

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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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10.1016/j.triboint.2016.10.024