Preparation of graphite nanosheets in different solvents by sand milling and their enhancement on tribological properties of lithiumbased grease

doi:10.1016/j.cjche.2020.01.013

中国化学工程学报 ›› 2020, Vol. 28 ›› Issue (4): 1177-1186.DOI: 10.1016/j.cjche.2020.01.013

• Materials and Product Engineering • 上一篇下一篇

Preparation of graphite nanosheets in different solvents by sand milling and their enhancement on tribological properties of lithiumbased grease

Jin Zhang, Aili Wang, Hengbo Yin

Faculty of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China

收稿日期:2019-05-06 修回日期:2019-12-30 出版日期:2020-04-28 发布日期:2020-07-27
通讯作者: Hengbo Yin
基金资助:
This work was financially supported by Wuxi Municipal Bureau on Science and Technology, China (Wuxi 530 project, 20130529010040) and Postgraduate Research & Practice Innovation Program of Jiangsu Province, China (SJCX18_0734).

Preparation of graphite nanosheets in different solvents by sand milling and their enhancement on tribological properties of lithiumbased grease

Jin Zhang, Aili Wang, Hengbo Yin

Faculty of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China

Received:2019-05-06 Revised:2019-12-30 Online:2020-04-28 Published:2020-07-27
Contact: Hengbo Yin
Supported by:
This work was financially supported by Wuxi Municipal Bureau on Science and Technology, China (Wuxi 530 project, 20130529010040) and Postgraduate Research & Practice Innovation Program of Jiangsu Province, China (SJCX18_0734).

摘要/Abstract

摘要： Graphite nanosheets with the average thicknesses ranging from 24.4 to 48.9 nm were prepared with the use of expanded graphite as the raw material by sand milling in deionized water, anhydrous ethanol, glycerol, and 1,4-butanediol, respectively. Anhydrous ethanol favored the formation of graphite nanosheets with a smaller average thickness. When the graphite nanosheets with the content of 2 wt% were added in lithium-based grease, the average friction coefficient decreased by 27% as compared with the pure lithium-based grease. The weld point and load wear index were 1.6 and 1.4 times those of the pure lithium-based grease, respectively. The tribological properties of the graphite nanosheet-containing lithium-based grease were comparable with those of the graphene-containing lithium-based grease.

关键词: Graphite nanosheets, Expanded graphite, Lithium-based grease, Tribological property

Abstract: Graphite nanosheets with the average thicknesses ranging from 24.4 to 48.9 nm were prepared with the use of expanded graphite as the raw material by sand milling in deionized water, anhydrous ethanol, glycerol, and 1,4-butanediol, respectively. Anhydrous ethanol favored the formation of graphite nanosheets with a smaller average thickness. When the graphite nanosheets with the content of 2 wt% were added in lithium-based grease, the average friction coefficient decreased by 27% as compared with the pure lithium-based grease. The weld point and load wear index were 1.6 and 1.4 times those of the pure lithium-based grease, respectively. The tribological properties of the graphite nanosheet-containing lithium-based grease were comparable with those of the graphene-containing lithium-based grease.

Key words: Graphite nanosheets, Expanded graphite, Lithium-based grease, Tribological property

Jin Zhang, Aili Wang, Hengbo Yin. Preparation of graphite nanosheets in different solvents by sand milling and their enhancement on tribological properties of lithiumbased grease[J]. 中国化学工程学报, 2020, 28(4): 1177-1186.

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Preparation of graphite nanosheets in different solvents by sand milling and their enhancement on tribological properties of lithiumbased grease

Preparation of graphite nanosheets in different solvents by sand milling and their enhancement on tribological properties of lithiumbased grease

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