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Exploration of anti-corrosive activity of TP (thespesia populnea)-TiO2 composite coating for mild steel (CS) in aggressive environments
Korean Journal of Chemical Engineering ( IF 2.9 ) Pub Date : 2022-06-25 , DOI: 10.1007/s11814-022-1158-4
Athira Krishnan

As part of promoting eco-friendly research & development, corrosion chemistry encourages green inhibitors for metal corrosion prevention. Thespesia Linoleic acid, n-Hexadecanoic acid, trans-Squalene, Phytol were identified as the active components responsible for corrosion inhibition. The optimum concentration of 500 ppm could deliver protection with efficiency in the range of 97%–98%. Additionally, we extended the study to evaluate the extract’s capability for its use in the paint industry. The remarkable potential of the TiO2-TP composite coating thus developed was illustrated by physico-chemical, electrochemical, and surface analyses. According to the electrochemical impedance spectroscopy (EIS) study, the applied leaf extract loaded coatings resist corrosion of CS at efficiencies of 97.9%, 91.6%, and 98.5% in 1 M HCl, 1 M HCl at 80 °C, and rainwater mediums, respectively. The proposed composite coating is undoubtedly promising for industrial application and is also recommended by green protocols.



中文翻译:

TP(thespesia populnea)-TiO2复合涂层对低碳钢(CS)腐蚀性环境中的防腐性能探索

作为促进环保研发的一部分,腐蚀化学鼓励使用绿色抑制剂来预防金属腐蚀。Thespesia 亚油酸、正十六烷酸、反式角鲨烯、植醇被确定为具有缓蚀作用的活性成分。500 ppm 的最佳浓度可提供 97%–98% 范围内的保护效率。此外,我们扩展了研究以评估提取物在涂料行业中的使用能力。TiO 2的巨大潜力通过物理化学、电化学和表面分析说明了由此开发的-TP 复合涂层。根据电化学阻抗谱 (EIS) 研究,所应用的叶提取物负载涂层在 1 M HCl、80 °C 的 1 M HCl 和雨水介质中以 97.9%、91.6% 和 98.5% 的效率抵抗 CS 的腐蚀,分别。所提出的复合涂层无疑具有工业应用前景,也被绿色协议推荐。

更新日期:2022-06-27
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