用大油功能化的共价有机框架作为有效的滑剂添加剂,以协同提高三元学性能
Yongming Yuan1, Xiaozhi Zhang1,2, Shenghua Xue1
1Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China.
Langmuir : the ACS journal of surfaces and colloids
|December 19, 2025
概括
一种新的油功能化共价有机框架 (GO@COF-F) 显著提高了滑剂的性能. 这种先进的纳米添加剂通过形成保护性 tribofilm 来减少摩擦和磨损,提高滑效率.
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:
- 共价有机框架 (COF) 为各种应用提供可调节的特性.
- 化COF在先进材料设计中具有独特的特性.
- 滑添加剂对于减少机械系统中的摩擦和磨损至关重要.
研究的目的:
- 为了合成和表征油功能化COF-F (GO@COF-F) 作为滑剂添加剂.
- 为了评估GO@COF-F在基油中的 Tribological 性能提升.
- 阐明改善滑性能背后的机制.
主要方法:
- 氨基终结COF-F的溶热合成.
- COF-F与大油 (GO) 通过球磨和阿扎-迈克尔反应的表面功能化.
- 使用标准摩擦和磨损测量,对PAO10基油中的GO@COF-F进行了 Tribological 测试.
主要成果:
- 成功合成了GO@COF-F纳米添加剂.
- 加入1.00重量%的GO@COF-F使摩擦系数从0.18降低到0.101.
- 磨损体积显著减少,从1.0 × 10^6降至1.6 × 10^5 μm^3.
- 观察到保护性 tribofilm 的形成和促进滚动摩擦.
结论:
- GO@COF-F作为一种有效的抗磨损和减少摩擦的添加剂.
- 增强的滑是由于修补效果和tribopfilm的形成.
- 这种功能化的COF显示了高级滑应用的巨大潜力.
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