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However, realizing composite coatings interfacial adaptability to external dynamic load and saltwater erosion still faces significant challenge. Herein, a marine environment self\u2010adaptive nanocomposite coating was developed, leveraging frictional heat\u2010driven solid\u2010liquid phase transition of hierarchical MXene\u2010polyethylene glycol (PEG)\/fluroresin. The coating takes fluorocarbon resin (FR) as the matrix, incorporating MXene nanosheets chemically grafted with polyethylene glycol (PEG) of different molecular weights. Notably, this coating maintains exceptional lubricity across varying external loads (3N \u223c 5N), achieving a low friction coefficient of 0.047 and wear rate of 11.8\u00d710\n                    <jats:sup>\u2212<\/jats:sup>\n                    <jats:sup>5<\/jats:sup>\n                    mm\n                    <jats:sup>3<\/jats:sup>\n                    \/N\u00b7m. The low\u2010friction behavior is primarily attributed to the hierarchical self\u2010adaptive lubrication strategy: MXene deal with low\u2010load friction, while higher loads generated friction is resolved through the phase transition capability of PEG. Theoretical calculation results also proved that frictional heat drives the directional migration of MXene\u2010PEG towards the frictional interface, ensuring self\u2010adaptive interface. Meanwhile, electrochemical impedance spectroscopy (EIS) measurements confirmed that the coating exhibits outstanding anti\u2010corrosion performance. This work develops a hierarchical self\u2010adaptive coating based on MXene interlayer sliding and PEG solid\u2010liquid phase transition, enabling the coating to provide reliable anti\u2010corrosion and wear\u2010resistant for equipment under complex alternating load conditions.\n                  <\/jats:p>","DOI":"10.1002\/smll.74918","type":"journal-article","created":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T10:14:37Z","timestamp":1785320077000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Hierarchical MXene\u2010PEG\/Fluroresin Composite Coating: An Interfacial Self\u2010Adaptive Strategy for Lubrication and Corrosion Inhibition"],"prefix":"10.1002","volume":"22","author":[{"given":"Kang","family":"Liu","sequence":"first","affiliation":[{"name":"Shandong Key Laboratory of Special Epoxy Resin College of Materials Science and Engineering Shandong University of Science and Technology  Qingdao 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