电焊机2026，Vol.56Issue(9)：31-45,15.DOI:10.7512/j.issn.1001-2303.2026.09.04
飞机短舱唇口用高抗冲蚀ZIF-7超疏水涂层的制备及其长效防腐性能
Ultra-durable ZIF-7 Superhydrophobic Coating for Long-term Corro-sion Protection in Aircraft Nacelle Lips
摘要
Abstract
The aviation industry's rapid development highlights aircraft metal corrosion,especially for parts like nacelle lips exposed to varying environments,greatly impacting flight safety.In this paper,we propose a"sandwich"superhydrophobic anticorrosive coating containing ZIF-7,which utilizes nanocontainer technology to achieve rapid environmental response.ZIF-7-encapsulated corrosion inhibitor releases during corrosion,preventing leakage and coating damage.In addition,a su-perhydrophobic coating has been added on top of the anticorrosive coating,which has been imparted with a surface water contact angle of up to 154°±3° and a water sliding angle of about 3°.It also has excellent physical/chemical stability,and it remains superhydrophobic even after repeated mechanical abrasion and acid/alkali immersion.The double-layer structure not only further enhances the"labyrinth effect"and extends the path for corrosive media to reach the metal surface,but also successfully isolates water and oxygen from the surface of the coating,which significantly improves the coating's function-ality and anticorrosion performance.The highest impedance modulus of 1.3931×1011 Ω·cm2 is seven orders of magnitude higher than that of the bare Al alloy sheet.After 30 days of salt spray testing,the bare Al alloy sheet and conventional coat-ings corroded significantly,while the ZB/ZnO coating showed no significant change and healing occurred at the scratches.This study introduces ZIF-7 into superhydrophobic corrosion protection and provides insight into practical corrosion protec-tion of aircraft nacelle lips.关键词
超疏水/金属腐蚀防护/复合涂层/自修复Key words
superhydrophobic/metal corrosion protection/composite coatings/self-healing分类
矿业与冶金引用本文复制引用
王日彤,彭乐,殷祚炷,张体明..飞机短舱唇口用高抗冲蚀ZIF-7超疏水涂层的制备及其长效防腐性能[J].电焊机,2026,56(9):31-45,15.基金项目
江西省自然科学基金(20224BAB204046,20232BAB211018) （20224BAB204046,20232BAB211018）
哈尔滨工业大学先进焊接与连接国家重点实验室开放课题(AWJ-23M26) （AWJ-23M26）
