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首页> 外文会议>International Conference on Nanoscience and Nanotechnology >The Optimization of CNT-PVA Nanocomposite for Mild Steel Coating: Effect of CNTs Concentration on the Corrosion Rate of Mild Steel
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The Optimization of CNT-PVA Nanocomposite for Mild Steel Coating: Effect of CNTs Concentration on the Corrosion Rate of Mild Steel

机译：温和钢涂层CNT-PVA纳米复合材料的优化：CNTs浓度对低碳钢腐蚀速率的影响

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Carbon Nanotubes (CNTs) are molecular-scale tubes of graphitic carbon which have outstanding mechanical and magnetic properties with extraordinary strength. It can be said that CNTs can be used in coating application to prevent corrosion and lower the rate of corrosion on steel. However, CNT alone cannot be used for coating purposes. Therefore, by combining it with polymer to produce a nanocomposite thin film, it can be used for nanocoating on mild steel substrate. Polyvinyl alcohol (PVA) was chosen due to its high strength and high modulus polymer fibers and has the possibilities of improving the physicochemical properties of carbon nanotubes. Carbon nanotubes and polyvinyl alcohol (CNT-PVA) nanocomposite were prepared by using sol-gel method and coated as thin film on mild steel substrate by using spin coating. Sol-gel is a convenient technique used for the production of nanocomposite aqueous solution. Five samples were prepared at the different concentration of CNTs-PVA to verify the corrosion rate application. The samples were then characterized by Field Emission Scanning Electron Microscopy (FESEM) and Atomic Force Microscopy (AFM) obtaining the structural properties, surface morphology and topography of samples. Raman spectroscopy was used to determine the microraman spectra of CNTs which showed the quality and purity of samples. Finally, corrosion test was done to measure the corrosion rate of samples at the different concentration of CNTs/PVA nanocomposite.
机译：碳纳米管（CNT）是石墨碳的分子尺度管，其具有非凡的强度的机械和磁性。可以说CNT可用于涂料应用以防止腐蚀并降低钢上的腐蚀速率。然而，单独的CNT不能用于涂覆目的。因此，通过将其与聚合物组合以产生纳米复合薄膜，可用于在低碳钢基材上纳米织物。选择聚乙烯醇（PVA）由于其高强度和高模量聚合物纤维，并且具有改善碳纳米管的物理化学性质的可能性。通过使用溶胶 - 凝胶法制备碳纳米管和聚乙烯醇（CNT-PVA）纳米复合材料并通过使用旋涂，在低碳钢基板上作为薄膜涂覆。溶胶 - 凝胶是一种用于生产纳米复合物水溶液的方便技术。以不同浓度的CNTS-PVA制备五个样品以验证腐蚀速率。然后通过现场发射扫描电子显微镜（FESEM）和原子力显微镜（AFM）的特征表征样品，获得样品的结构性，表面形态和地形。拉曼光谱法用于确定CNT的微生物光谱，其显示样品的质量和纯度。最后，进行腐蚀试验以测量不同浓度的CNT / PVA纳米复合材料的样品的腐蚀速率。

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