Al-Saadi Saad, Singh Raman R K
Department of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC 3800, Australia.
Department of Chemical and Biochemical Engineering, Monash University, Clayton, VIC 3800, Australia.
Materials (Basel). 2022 Nov 5;15(21):7809. doi: 10.3390/ma15217809.
Mild steel continues to be the most extensively used construction material in several industries and constructions. However, corrosion of mild steel in aggressive environments is a major concern. Under the tremendously increasing demand for improving the coatings strategies because of the environmental concerns due to some of the traditional coatings, silane pre-treatments have been emerging as one of the effective solutions, among other strategies. Different approaches, such as adding particles of metal oxide (such as SiO, ZrO, AlO, TiO and CeO), incorporating plant extracts and impregnating 2D materials into the coatings, have been employed for durable corrosion resistance, including for mitigating enhanced corrosion due to the presence of bacteria. This review discusses the critical mechanistic features of silane coatings such as the role of hydrolysis and condensation in the bonding of silanes with metal surfaces. The factors that influence the performance of the silane coatings for corrosion resistance of mild steel are discussed. In particular, this review provides insight into silane coatings for mitigating microbiologically influenced corrosion (MIC) of mild steel.
低碳钢仍然是多个行业和建筑中使用最广泛的建筑材料。然而，低碳钢在侵蚀性环境中的腐蚀是一个主要问题。由于一些传统涂层对环境造成影响，在对改进涂层策略的需求急剧增加的情况下，硅烷预处理已成为有效的解决方案之一，其他策略还包括不同的方法，如添加金属氧化物颗粒（如SiO、ZrO、AlO、TiO和CeO）、加入植物提取物以及将二维材料浸渍到涂层中，这些方法都用于实现持久的耐腐蚀性能，包括减轻因细菌存在而加剧的腐蚀。本文综述讨论了硅烷涂层的关键机理特征，如硅烷水解和缩合在与金属表面结合中的作用。还讨论了影响硅烷涂层对低碳钢耐腐蚀性能的因素。特别是，本文综述深入探讨了用于减轻低碳钢微生物影响腐蚀（MIC）的硅烷涂层。
