The size effect of typical micro- and nano-calcium carbonate additives on the friction properties of calcium sulfonate grease

IF 1.8 4区工程技术 Q3 ENGINEERING, CHEMICAL Lubrication Science Pub Date : 2023-09-13 DOI:10.1002/ls.1674

Longqi Sun, Qin Zhao, Rui Ma, Huaigang Su, Gaiqing Zhao, Xiaobo Wang

引用次数: 0

Abstract

This paper firstly reports the size effect of typical micro- and nano- calcium carbonate additives on the friction properties of calcium sulfonate grease. The rheological and tribological performance of calcium sulfonate grease with typical micro- and nano- calcium carbonate additives were investigated at 30 or 80°C by Rheometer and Optimol SRV-V tester. To its surprise, calcium sulfonate grease with 5% calcium carbonate microparticles behave remarkable lubrication performance than calcium sulfonate grease with 5% calcium carbonate nanoparticles under boundary lubrication condition according to the rheological analysis and tribological evaluation. The enhancement in excellence tribological performance can be attributed to the synergistic effect between calcium carbonate microparticles and calcium carbonate in thickener of calcium sulfonate grease. The thin film composed of CaCO₃ and CaO on the worn surface generated by solid particles is conducive to reducing friction and wear.

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典型的微纳米碳酸钙添加剂对磺酸钙润滑脂摩擦性能的尺寸影响

本文首次报道了典型的微纳米碳酸钙添加剂对磺酸钙润滑脂摩擦性能的影响。使用流变仪和 Optimol SRV-V 测试仪研究了含有典型微纳米碳酸钙添加剂的磺酸钙润滑脂在 30 或 80°C 下的流变和摩擦性能。根据流变分析和摩擦学评估，在边界润滑条件下，含有 5%碳酸钙微粒的磺酸钙润滑脂比含有 5%碳酸钙纳米微粒的磺酸钙润滑脂具有更出色的润滑性能。卓越摩擦学性能的提高可归因于碳酸钙微粒与磺酸钙润滑脂增稠剂中的碳酸钙之间的协同效应。固体颗粒在磨损表面形成的由 CaCO3 和 CaO 组成的薄膜有利于减少摩擦和磨损。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Lubrication Science ENGINEERING, CHEMICAL-ENGINEERING, MECHANICAL

CiteScore

3.60

自引率

10.50%

发文量

审稿时长

6.8 months

期刊介绍： Lubrication Science is devoted to high-quality research which notably advances fundamental and applied aspects of the science and technology related to lubrication. It publishes research articles, short communications and reviews which demonstrate novelty and cutting edge science in the field, aiming to become a key specialised venue for communicating advances in lubrication research and development. Lubrication is a diverse discipline ranging from lubrication concepts in industrial and automotive engineering, solid-state and gas lubrication, micro & nanolubrication phenomena, to lubrication in biological systems. To investigate these areas the scope of the journal encourages fundamental and application-based studies on: Synthesis, chemistry and the broader development of high-performing and environmentally adapted lubricants and additives. State of the art analytical tools and characterisation of lubricants, lubricated surfaces and interfaces. Solid lubricants, self-lubricating coatings and composites, lubricating nanoparticles. Gas lubrication. Extreme-conditions lubrication. Green-lubrication technology and lubricants. Tribochemistry and tribocorrosion of environment- and lubricant-interface interactions. Modelling of lubrication mechanisms and interface phenomena on different scales: from atomic and molecular to mezzo and structural. Modelling hydrodynamic and thin film lubrication. All lubrication related aspects of nanotribology. Surface-lubricant interface interactions and phenomena: wetting, adhesion and adsorption. Bio-lubrication, bio-lubricants and lubricated biological systems. Other novel and cutting-edge aspects of lubrication in all lubrication regimes.

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