Abstract Maintaining or even improving the anti-corrosion performance of coatings while enhancing their mechanical properties is an active research area. Here, polyacrylonitrile nanofibers (PAN-NFs) filled with benzotriazole (BTA) as an inhibitor were created via a coaxial electrospinning technique and directly deposited on a metal surface. The epoxy resin was then covered to form composited coatings. The as-prepared coatings revealed better mechanical properties and high protective ability than unprocessed coatings. The PAN-NFs/BTA system offered long-term sealing function when the coatings were damaged. Molecular dynamic models were then employed to further confirm that the healing agent releasing from the composite coating could prevent Fe substrate from eroding by water molecules.

中文翻译：

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核壳纳米纤维复合涂层的制备及其在海水中的力学性能、防腐性能和机理

摘要 在提高涂层力学性能的同时保持甚至提高涂层的防腐性能是一个活跃的研究领域。在这里，填充有苯并三唑 (BTA) 作为抑制剂的聚丙烯腈纳米纤维 (PAN-NFs) 通过同轴静电纺丝技术制造并直接沉积在金属表面上。然后覆盖环氧树脂以形成复合涂层。与未加工的涂层相比，所制备的涂层显示出更好的机械性能和高保护能力。PAN-NFs/BTA 系统在涂层损坏时提供长期密封功能。然后采用分子动力学模型进一步证实从复合涂层中释放的愈合剂可以防止铁基体被水分子侵蚀。