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作为非极性滑剂添加剂,以低效添加剂的形式使用离子气合碳点

Haocheng Wang^1,2, Qinglun Che¹, Yi Li^2,3

¹School of Mechanical & Automotive Engineering, Qingdao University of Technology, Qingdao 266033, P. R. China.

Langmuir : the ACS journal of surfaces and colloids

|June 4, 2024

概括

用离子添加的碳点 (NCD) 被合成,以提高滑剂的兼容性. 这些NCD增强了tribological性能,形成了高级滑应用的优质碳基tribofilm.

科学领域:

材料科学材料科学材料科学
部落学 (tribology) 是一个学科.
纳米技术纳米技术

背景情况:

碳点 (CD) 在滑方面表现有前途,但与非极性滑剂的兼容性不佳.
已知CD上的离子结构和活性组可以增强滑性.

研究的目的:

为了合成离子添加碳点 (NCDs),提高了油的兼容性和滑性.
调查聚烯 (PAO) 中NCDs的协同滑机制.

主要方法:

通过化和离子交换合成NCDs.
作为PAO4滑剂中的添加剂,对NCD进行了tribological测试.
用离子液体 ([N44HH][DEHP]) 进行比较分析,以了解阴离子效应.

主要成果:

合成的离子NCD在PAO4中作为添加剂表现良好,添加率低.
表面分析显示,在摩擦界面上,NCD和酸离子的协同吸附.
产生了一种基于碳的优质 tribofilm,增强了滑.

结论:

离子NCD为改善非极性滑剂中碳点的兼容性和滑性提供了可行的解决方案.
NCD阳离子和滑剂离子之间的协同作用对于形成保护性 tribofilms 至关重要.
这项研究为滑工程中基于碳的先进材料铺平了道路.

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