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05-12-2018 | Chemical routes to materials

Alkyl phosphate modified graphene oxide as friction and wear reduction additives in oil

Authors: Lei Zhang, Yi He, Lin Zhu, Zhilin Jiao, Weizhou Deng, Caiping Pu, Chunmei Han, Shan Tang

Published in: Journal of Materials Science | Issue 6/2019

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Abstract

Alkyl phosphate modified graphene oxide (GON-DDP) was successfully synthesized using dodecanol, ethanol amine and self-made graphene oxide (GO) as precursors. The structure and morphology of GON-DDP were characterized by FT-IR, XPS, TG/DSC, SEM and TEM. The characterization results indicate that long alkyl phosphate chains were successfully grafted on GO surface, which guaranteed the dispersibility of GON-DDP in hydroisomerization dewax base oil (VHVI8). Then the tribology properties of GON-DDP as friction reduction and anti-wear additive in VHVI8 were evaluated on four-ball machine and SRV test system. The results show that the friction coefficient and wear scar diameter were reduced by 22.7% and 30.3% compared with bare VHVI8 base oil. Moreover, the non-seizure load of VHVI8 was significantly raised by adding GON-DDP. Finally, the lubrication mechanism was proposed according to Raman analysis on the worn surfaces of steel balls.

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Literature
26.
go back to reference William JBY, Hummers S, Offeman RE (1958) Preparation of graphitic oxide. J Am Chem Soc 80:1339CrossRef William JBY, Hummers S, Offeman RE (1958) Preparation of graphitic oxide. J Am Chem Soc 80:1339CrossRef
Metadata
Title
Alkyl phosphate modified graphene oxide as friction and wear reduction additives in oil
Authors
Lei Zhang
Yi He
Lin Zhu
Zhilin Jiao
Weizhou Deng
Caiping Pu
Chunmei Han
Shan Tang
Publication date
05-12-2018
Publisher
Springer US
Published in
Journal of Materials Science / Issue 6/2019
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-018-03216-7

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