Synthesis, assessment and corrosion protection investigations of some novel peptidomimetic cationic surfactants: Empirical and theoretical insights
作者:Wessam S. Abdrabo、Bahaa Elgendy、Kamal A. Soliman、Hany M. Abd El-Lateef、Ahmed H. Tantawy
DOI:10.1016/j.molliq.2020.113672
日期:2020.10
methods). The prepared compounds demonstrated outstanding protection power for the erosion of C-steel in 0.5 M HCl at 323 K. The PDP studies demonstrated that the novel surfactants behaved as mixed-type additives. The protection capacity rises with an increasing surfactant dose, with values ranging from 93.10 to 98.25% at 100 ppm. The adsorption of additives on the electrode interface follows the Langmuir
三种新型拟肽阳离子表面活性剂以高收率合成。使用1 H,13澄清了这些表面活性剂的化学构型13 C NMR和FT-IR光谱。通过电化学技术(电化学阻抗谱(EIS)和恒电位极化(PDP)方法)研究了这些化合物对碳钢的抑制能力和吸附性能。制备的化合物在323 K的0.5 M HCl中显示出出色的保护作用,可防止C钢腐蚀。PDP研究表明,新型表面活性剂具有混合型添加剂的作用。保护能力随表面活性剂剂量的增加而增加,在100 ppm时其保护值范围从93.10到98.25%。电极界面上添加剂的吸附遵循Langmuir模型,并包含化学吸附模式。