Reinforcement of tribological performance assisted by in-situ carbon layer from the release, capture and tribo-chemistry of ionic liquid hydrotalcite composite lubricating materials

IF 10.5 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Pub Date : 2025-06-16 DOI:10.1016/j.carbon.2025.120532

Bingyu Tian , Kun Cui , Ping Wen , Rui Dong , Mingjin Fan

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引用次数: 0

Abstract

The tribofilm is crucial for the improvement of tribological properties, and the modulation of interfacial tribofilm through system construction and component optimization has become an important strategy to obtain excellent lubrication stability. In this work, ionic liquid (IL) functionalized hydrotalcite composites (IL-LDH) were designed and prepared as lubricating additives. The hydrotalcite was successfully exfoliated by ILs, and obtained a thinner and more flexible lamellar morphology structure. Meanwhile, the composite additives significantly improve the friction reduction, anti-wear and load-bearing properties of the basic system. The significantly improved tribological properties by IL-LDH are attributable not only to the formation of in-situ carbon layer contributed by the release and capture of ILs between the composite layers under shear, but also to the friction-induced organic-inorganic doped tribofilm under the coupling of multiple effects.

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原位碳层辅助离子液体水滑石复合润滑材料的释放、捕获和摩擦化学增强摩擦学性能

摩擦膜是改善摩擦性能的关键，通过系统构建和部件优化来调节界面摩擦膜已成为获得优异润滑稳定性的重要策略。设计并制备了离子液体（IL）功能化水滑石复合材料（IL- ldh）作为润滑添加剂。水滑石被ILs成功剥离，得到了更薄、更灵活的片层状形貌结构。同时，复合添加剂显著提高了基础体系的减摩、抗磨和承载性能。IL-LDH摩擦学性能的显著改善不仅是由于剪切作用下复合层间il的释放和捕获导致原位碳层的形成，而且是由于多种作用耦合作用下产生的摩擦诱导的有机-无机掺杂摩擦膜。

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来源期刊

Carbon 工程技术-材料科学：综合

CiteScore

20.80

自引率

7.30%

发文量

审稿时长

23 days

期刊介绍： The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.