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首页> 外文期刊>RSC Advances >Evaluation of the corrosion protection properties of an epoxy coating containing sol-gel surface modified nano-zirconia on mild steel
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Evaluation of the corrosion protection properties of an epoxy coating containing sol-gel surface modified nano-zirconia on mild steel

机译：含溶胶-凝胶表面改性纳米氧化锆的低碳钢环氧涂层的防腐性能评估

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摘要

In this study, the effect of surface modified nano-zirconia (nano-ZrO2) on the corrosion protection of epoxy coating on mild steel was investigated. An organosilane (trimethoxy methyl silane) was used as a surface modifier to improve the dispersability of the inorganic nanoparticles in the organic coating matrix. Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA) were used to characterize the sol-gel surface modified nanoparticles. The dispersability of the modified and unmodified nano-zirconia in an epoxy coating was examined by field emission-scanning electron microscopy (FE-SEM). Electrochemical impedance spectroscopy (EIS) and salt spray were employed to assess the corrosion protection performance of the epoxy coatings. The results showed improved corrosion protection in the presence of the surface modified nanoparticles. The mechanical properties of the coatings were also found to be improved in the presence of modified nanoparticles in tensile and hardness measurements.
机译：在这项研究中，研究了表面改性的纳米氧化锆（nano-ZrO2）对低碳钢上环氧涂层腐蚀防护的影响。有机硅烷（三甲氧基甲基硅烷）用作表面改性剂，以改善无机纳米颗粒在有机涂料基质中的分散性。傅里叶变换红外光谱（FTIR）和热重分析（TGA）用于表征溶胶-凝胶表面改性的纳米粒子。通过场发射扫描电子显微镜（FE-SEM）检查改性和未改性的纳米氧化锆在环氧涂料中的分散性。电化学阻抗谱（EIS）和盐雾被用来评估环氧涂料的防腐性能。结果表明在存在表面改性的纳米颗粒的情况下改善了腐蚀防护。还发现在拉伸和硬度测量中存在改性纳米颗粒的情况下，涂层的机械性能也得到改善。

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