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Application of magnetite nano-hybrid epoxy as protective marine coatings for steel

机译：磁铁矿纳米混合环氧树脂在钢的船用防护涂料中的应用

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摘要

The present work aims to develop a method for preparation of porous iron oxide nanomaterials and to investigate the applicability as smart self-healing protective coatings for steel. In this respect, iron oxide nanoparticles doped with iodine and capped with natural modified rosin surfactant were prepared and applied as self-healing materials to repair the cracks of epoxy coats. The mechanism of self-healing characteristics of porous nanomaterials was elucidated using different analyses. The results suggested the formation of stable thin films on the cracks and holes of epoxy coats. Polarization and electrochemical impedance spectroscopy showed an improvement in the corrosion resistance of the epoxy coating. The presence of nanoparticles was found to be an effective in restricting the penetration of aggressive ions by forming a strong barrier layer at coating metal interface.
机译：本工作旨在开发一种制备多孔氧化铁纳米材料的方法，并研究其作为钢的智能自愈保护涂层的适用性。在这方面，制备了掺杂有碘并用天然改性的松香表面活性剂封端的氧化铁纳米颗粒，并将其用作自修复材料以修复环氧涂层的裂缝。通过不同的分析阐明了多孔纳米材料自愈特性的机理。结果表明在环氧涂层的裂纹和孔洞上形成了稳定的薄膜。极化和电化学阻抗谱显示环氧涂层的耐腐蚀性得到改善。发现纳米粒子的存在通过在涂层金属界面处形成坚固的阻挡层，可以有效地限制侵蚀性离子的渗透。

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