To expand the use of metal–organic frameworks (MOFs) based self-lubricating composite, flexible MOFs MIL-88D has been studied as a nanocontainer for loading lubricant. In this work, the mechanism of oleamine adsorption and desorption by MIL-88D was investigated through molecular simulations and experiments. Molecular simulations showed that the oleamines can be physically adsorbed into open MIL-88Ds with the Fe and O atoms of MIL-88D interacting with oleamine NH₂-group. Higher temperature can cause Ole@MIL-88D to release more oleamines, while higher pressure on Ole@MIL-88D caused less oleamines released. Moreover the Ole@MIL-88D was incorporated into epoxy resin (EP) for friction tests. The optimum mass ratio of MIL-88D to EP is 15 wt%, and the EP/Ole@MIL-88D prefers light load and high frequency friction. This work suggests that flexible MOFs can be used as a nanocontainer for loading lubricant, and can be used as a new self-lubricating composite.

为了扩大基于金属有机框架（MOF）的自润滑复合材料的使用，柔性 MOF MIL-88D 已被研究作为装载润滑剂的纳米容器。本工作通过分子模拟和实验研究了MIL-88D吸附和解吸油胺的机理。分子模拟表明，油胺可以物理吸附到开放的MIL-88D中，其中MIL-88D的Fe和O原子与油胺NH ₂ 基团相互作用。较高的温度会导致 Ole@MIL-88D 释放更多的油胺，而较高的压力会导致 Ole@MIL-88D 释放较少的油胺。此外，Ole@MIL-88D 被纳入环氧树脂（EP）中进行摩擦测试。 MIL-88D与EP的最佳质量比为15wt%，EP/Ole@MIL-88D更喜欢轻负载和高频摩擦。这项工作表明柔性MOFs可以用作装载润滑剂的纳米容器，并且可以用作新型自润滑复合材料。