In this research study, halloysite nanotubes (HNTs) were applied as nanocontainers to encapsulate the synthesized 3,4 $$^\prime $$ ′ -dihydro-3-[2 $$^\prime $$ ′ -mercaptothiazolidine]indol-2-one (DMI) molecules for corrosion protection of carbon steel in a 3.5% NaCl solution. Fourier transform infrared analysis was used to prove the loading of HNTs with DMI. Poly(ethylene- co -acrylic acid) and branched polyethylenimine polyelectrolyte layers were deposited on the surface of DMI-loaded HNTs by a layer by layer (LbL) method. The LbL deposition technique was verified by a zeta potential test. Release of DMI corrosion inhibitors from HNTs in alkaline pH was verified by using UV–visible spectroscopy results. Electrochemical impedance spectroscopy technique was applied to consider the anticorrosion ability of 1, 2.5 and 5 wt% DMI-loaded HNTs as smart epoxy coatings.

中文翻译：

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具有pH响应负载埃洛石的智能纳米复合涂层的配制及其防腐性能研究

在这项研究中，埃洛石纳米管 (HNT) 被用作纳米容器来封装合成的 3,4 $$^\prime $$ ′ -dihydro-3-[2 $$^\prime $$ ′ -mercaptothiazolidine]indol-2 - 一种 (DMI) 分子，用于在 3.5% NaCl 溶液中对碳钢进行腐蚀保护。傅里叶变换红外分析用于证明 HNTs 与 DMI 的负载。通过逐层（LbL）方法将聚（乙烯-共聚丙烯酸）和支化聚乙烯亚胺聚电解质层沉积在负载 DMI 的 HNT 的表面上。LbL 沉积技术通过 zeta 电位测试得到验证。使用紫外-可见光谱结果验证了碱性 pH 值下 HNT 中 DMI 缓蚀剂的释放。应用电化学阻抗谱技术考虑1、2的防腐能力。