A Self‐Adaptive Composite Lubricated Coating With Lubrication‐to‐Superhydrophobic Transition for Sustainable Icephobicity
Yuying Wang, Xuan Jiao, Binrui Wu, Yage Xia, Hongrui Cheng, Yuanyuan Yang, Xi Chen, Yaolong Yang, Hanghang Liu, Feiyan FuABSTRACT
Ice accretion threatens critical infrastructure, yet conventional lubricated surfaces suffer from irreversible failure due to lubricant depletion. Herein, we propose a self‐adaptive composite coating (PSPE) that achieves sustainable icephobicity via a lubrication‐to‐superhydrophobic transition. The coating was fabricated by synthesizing a PDMS‐based polyurethane matrix, incorporating perfluoropolyether (PFPE) grease, and constructing a hierarchical rough structure with micro/nanoparticles. Benefiting from this design, the PSPE coating withstands more than 1700 Taber abrasion cycles, 2500 h of UV aging, and thermal treatment at 350°C. Crucially, upon wear‐induced lubricant loss, the coating spontaneously transitions from a low‐friction lubricated state to a superhydrophobic state, maintaining a low ice adhesion strength (<100 kPa) over 12 icing/de‐icing cycles. This work provides a feasible strategy to mitigate the lubricant depletion problem of conventional lubricated surfaces and to extend their anti‐icing service life.