Ionic liquid-functionalized ZnO nanomaterial: Multifunctional additives enhancing tribological performance and corrosion resistance in ester oil

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL Tribology International Pub Date : 2024-10-12 DOI:10.1016/j.triboint.2024.110320

Longxia Wang , Shifan Sun , Yujuan Zhang , Chunli Zhang , Shengmao Zhang

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Abstract

A multifunctional nanomaterial (ZnO-IL), comprising zinc oxide modified with corrosion-resistant ionic liquid groups, was designed and synthesized. It was used as an additive in bis(2-ethylhexyl) sebacate (DIOS) to evaluate its tribological and corrosion resistance properties, and compared with the commercial additive sulfurized isobutylene (SIB). ZnO-IL exhibited good solubility and thermal stability in DIOS. Lubricants containing ZnO-IL showed excellent anti-wear performance under various loads and temperatures. Its deposition on metal surfaces and the synergistic action of benzotriazole groups in the anions effectively prevented corrosion on the surfaces of metal friction pairs, thereby addressing the challenge of friction pair corrosion caused by the hydrolysis of ester-based oils. The ZnO-IL nanomaterial rapidly formed an organic-inorganic multilayer adsorption film on metal surfaces through electrostatic interactions. During friction, a boundary lubrication film composed of ZnO deposition and friction chemical reaction films was formed, thereby avoiding direct metal contact, reducing contact pressure, and exhibiting outstanding friction reduction and anti-wear properties.

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离子液体功能化氧化锌纳米材料：增强酯类油摩擦学性能和耐腐蚀性能的多功能添加剂

研究人员设计并合成了一种多功能纳米材料（ZnO-IL），该材料由添加了耐腐蚀离子液体基团的氧化锌组成。研究人员将其用作双（2-乙基己基）癸二酸酯（DIOS）的添加剂，以评估其摩擦学和耐腐蚀性能，并将其与商业添加剂硫化异丁烯（SIB）进行了比较。ZnO-IL 在 DIOS 中表现出良好的溶解性和热稳定性。含有 ZnO-IL 的润滑油在各种负荷和温度下都表现出优异的抗磨损性能。ZnO-IL 在金属表面的沉积以及阴离子中苯并三唑基团的协同作用有效地防止了金属摩擦副表面的腐蚀，从而解决了酯基油水解引起的摩擦副腐蚀问题。ZnO-IL 纳米材料通过静电作用在金属表面迅速形成了有机-无机多层吸附膜。在摩擦过程中，形成了由 ZnO 沉积膜和摩擦化学反应膜组成的边界润滑膜，从而避免了金属的直接接触，降低了接触压力，具有出色的减摩和抗磨损性能。

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来源期刊

Tribology International 工程技术-工程：机械

CiteScore

10.10

自引率

16.10%

发文量

627

审稿时长

35 days

期刊介绍： Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International. Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.