Methylcellulose-functionalized gallium-based liquid-metal nanoparticles as water-based lubricant additives

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2024-10-22 DOI:10.1016/j.triboint.2024.110336

Yafei Cui , Jie Guo , Jun Cheng , Yushan Geng , Hui Tan , Shengyu Zhu , Jun Yang

引用次数: 0

Abstract

Ga-based liquid metal nanoparticles (GLM-NPs) are a novel high-performance additive for lubricants and this work novelty prepared a novel type of heterogeneous nanoparticles modified with a cost-effective and available methylcellulose (GLM-NPs/MC). It displays a clear core-shell structure with a particle size of about 270 nm, and as a water-based lubricant additive, it exhibits good tribology properties, reducing the friction coefficient and wear rate of the 304 steel discs by about 59 % and 40 % respectively. The high dispersion and good stability of GLM-NPs/MC make them slowly enter into the worn surface to form a Ga-rich tribo-film. In addition, the influence of GLM-NPs/MC content on the lubrication performance of the water was also studied and the optimization additive content is 0.6 wt%. This study provides insights into the design of nano-composite materials based on gallium-based liquid metal for lubrication applications.

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作为水基润滑油添加剂的甲基纤维素功能化镓基液态金属纳米粒子

镓基液态金属纳米粒子（GLM-NPs）是一种新型的高性能润滑油添加剂，这项工作新颖地制备了一种新型的异质纳米粒子，并用一种成本低廉且可用的甲基纤维素（GLM-NPs/MC）进行了改性。作为一种水基润滑油添加剂，它具有良好的摩擦学特性，可将 304 钢圆盘的摩擦系数和磨损率分别降低约 59% 和 40%。GLM-NPs/MC 的高分散性和良好稳定性使其缓慢进入磨损表面，形成富含 Ga 的三重膜。此外，还研究了 GLM-NPs/MC 含量对水润滑性能的影响，优化添加剂含量为 0.6 wt%。这项研究为设计用于润滑应用的基于镓基液态金属的纳米复合材料提供了启示。

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

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.