As a typical two-dimensional (2D) material, Ti₃C₂T_x MXene has evolved to be a potential candidate for lubricant additives. However, it usually fails to achieve desirable lubricity as oil additives due to the poor interfacial compatibility caused by surface hydrophilicity. Especially, MXene shows a very poor dispersity in fluorine-containing lubricating oils. To circumvent this limitation, in this work, one kind of fluoropolymer was employed to modify the surface of MXene for synthesizing a fluorinated MXene, which could be dispersed very well in fluorine-containing lubricating oils based on the principle of “like dissolves like”. Concretely, Poly[2-(Perfluorooctyl)ethyl methacrylate)] (PPFMA) grafted Ti₃C₂T_x MXene (PPFMA-g-Ti₃C₂T_x) were prepared as fluorinated lubricant additives for perfluoropolyether (PFPE). Due to the interlayer slippage and good dispersibility, this fluorinated modified MXene improved anti-friction and anti-wear property of PFPE between steel/steel contact. Looking beyond, the addition of fluorinated additives into fluorine-containing lubricating oils will play an important role in the field of lubricating oil.

作为典型的二维 (2D) 材料，Ti ₃ C ₂ T _x MXene 已发展成为润滑油添加剂的潜在候选者。然而，由于表面亲水性导致界面相容性差，通常无法实现作为油品添加剂所需的润滑性。特别是，MXene 在含氟润滑油中的分散性非常差。为了克服这一限制，在这项工作中，采用一种含氟聚合物对 MXene 的表面进行改性，合成了一种氟化 MXene，基于“同类相溶”的原理，它可以很好地分散在含氟润滑油中。具体而言，Poly[2-(Perfluorooctyl)ethyl methacrylate)] (PPFMA) 接枝 Ti ₃ C ₂ T_x MXene (PPFMA-g-Ti ₃ C ₂ T _x ) 被制备为全氟聚醚 (PFP​​E) 的氟化润滑剂添加剂。由于层间滑移和良好的分散性，这种氟化改性的 MXene 提高了 PFPE 在钢/钢接触之间的减摩和抗磨性能。展望未来，在含氟润滑油中添加含氟添加剂将在润滑油领域发挥重要作用。