Tribochemistry can be defined as a field dealing with the chemical reactions occurring in the friction zone, capable of catalyzing mechanical and physico-chemical changes in the friction contact area, facilitating the formation of tribo-films, which is also an efficient approach to fabricate novel innovative materials. In this paper, we report the successful synthesis of the silicon oil (SO)-functionalized covalent organic frameworks (COFs) prepared via the tribochemical method when subjected to the reciprocating friction; during the friction process, the rich aldehyde-terminated COFs can bond with amino SO via the Schiff base reaction between aldehyde group and amino group to obtain the desired functionalized COFs (SO@COF-LZU1). The tribochemical reaction progress was tracked through in-situ monitoring of the friction coefficient and the operating conditions during the entire friction process. Noticeably, the friction coefficient continued to decrease until it finally stabilized as the reaction progressed, which revealed the formation of a protective tribo-film. Herein, an approximate tribochemical model was presented, wherein the reaction mechanism was investigated and analyzed by employing structural analysis techniques like magic angle spinning nuclear magnetic resonance (MAS NMR), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Furthermore, the tribochemical-induced SO@COF-LZU1 exhibited remarkable tribological performance with a low friction coefficient of 0.1 and 95.5% reduction in wear volume when used as additives of 500SN base oil. The prime focus of our research was on the preparation and functionalization of COF materials via tribochemical reactions, unraveling a new avenue for the rational design and preparation of functional materials.

摩擦化学可以定义为处理摩擦区域发生的化学反应的领域，能够催化摩擦接触区域的机械和物理化学变化，促进摩擦膜的形成，这也是制造新型摩擦材料的有效方法。创新材料。在本文中，我们报道了在受到往复摩擦时通过摩擦化学方法成功合成了硅油（SO）功能化的共价有机骨架（COF）；在摩擦过程中，富含醛基的COFs可以通过醛基和氨基之间的席夫碱反应与氨基SO结合，得到所需的功能化COFs（SO@COF-LZU1）。通过原位跟踪摩擦化学反应进程监测整个摩擦过程中的摩擦系数和运行状况。值得注意的是，随着反应的进行，摩擦系数持续下降，直到最终稳定，这表明形成了保护性摩擦膜。本文提出了一个近似的摩擦化学模型，利用魔角旋转核磁共振（MAS NMR）、透射电子显微镜（TEM）和X射线光电子能谱（XPS）等结构分析技术研究和分析了反应机理。 。此外，摩擦化学诱导的SO@COF-LZU1作为500SN基础油的添加剂时表现出显着的摩擦学性能，摩擦系数低至0.1，磨损量减少95.5%。