Laser-induced graphene (LIG) has attracted widespread attention owing to its excellent solid-lubricating property, chemical stability, and designable surface structure, and has shown broad application prospects in fields such as friction reduction and corrosion protection. However, its limited structural stability and lubricant-storage capability restrict its practical application. In this work, a multifunctional composite lubricating surface integrating LIG, epoxy resin, laser surface texturing, and phase-change paraffin wax (PW@LST@E-LIG) was developed. The LIG structure was firstly optimized by tuning the laser power, followed by epoxy resin infiltration to enhance structural stability. Subsequently, laser-textured micropore arrays were introduced and combined with phase-change paraffin wax to establish a thermally responsive lubrication system, thereby achieving the synergistic enhancement of tribological and anti-corrosion performance. Compared with the original LIG, the optimized sample exhibited a reduction in coefficient of friction (COF) of 45–55% (approximately 0.09) and the wear depth decreased by approximately 90% under the same load. Anti-corrosion performance tests showed that the interfacial charge-transfer resistance increased to 10⁵ Ω cm², while the corrosion current density decreased to 10⁻⁷ A·cm⁻². The corrosion current density decreased by more than two orders of magnitude compared with that of the substrate, resulting in an inhibition efficiency of 99.54%. Through the coupling of structural design and phase-change materials, this study achieved the synergistic enhancement of wear resistance, lubrication, lubricant-storage capability, and anti-corrosion performance, providing a new strategy for the design of multifunctional surfaces for diverse service conditions.

Recently, various slippery liquid-infused porous surfaces (SLIPS) have been fabricated for the protection of various materials. However, these SLIPSs are limited by their underlying storage structure and superficial lubricant layer, showing poor durability. Herein, inspired by the high-strength structure of Shell nacre’s “brick-mud” layer, we fabricated an all-inorganic composite coating by using wet chemically etched MXene as a brick and an aluminum phosphate binder (AP) as mud. Then, a series of microwell-array structures were designed and prepared on the coating via nanosecond ultrafast laser writing ablation technology. Subsequently, the textured surface was modified by a silane coupling agent. Vinyl-terminated polydimethylsiloxane (PDMS) was tightly grafted onto the porous surface through a thiol-ene click reaction to obtain lubricant grafted texture surface (LGTS). The prepared LGTS showed good lubrication properties for multiple phases, including various liquids, ice crystals, and solids. It exhibits excellent chemical stability and mechanical durability under deionized water impact, centrifugal test, strong acid solutions, anti/de-icing cycles, and high-intensity friction. Thus, the proposed strategy for constructing robust LGTS will greatly promote theoretical research on super wetting interfacial materials and their applications in the fields of antifouling, anti/de-icing, and lubricating protection.