We study the efficiency of inhibition of corrosion processes in the aluminum alloy placed in an aqueous solution of ethylene glycol by an ecologically friendly rhamnolipid biocomplex obtained as the product of biosynthesis of the Pseudomonas sp. PS-17 strain. It is shown that the biogenic inhibitor added to an aqueous solution of ethylene glycol decreases the rates of both the anodic and cathodic reactions and makes the charge-transfer resistance of aluminum alloy 2.6 times higher, which indicates the possibility of formation of durable protective films on the metal as a result of the adsorption of inhibitor molecules and the formation of complex compounds with aluminum cations. It is shown that the rhamnolipid biocomplex is an efficient corrosion inhibitor on freshly formed surfaces of the aluminum alloy, as indicated by an increase in the rate of its repassivation.

中文翻译：

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鼠李糖脂生物复合物抑制铝合金在乙二醇水溶液中的腐蚀

我们研究了生态友好的鼠李糖脂生物复合物对置于乙二醇水溶液中的铝合金腐蚀过程的抑制效率，该复合物是假单胞菌生物合成的产物。PS-17 菌株。结果表明，添加到乙二醇水溶液中的生物抑制剂降低了阳极和阴极反应的速率，并使铝合金的电荷转移电阻提高了 2.6 倍，这表明在表面形成耐用保护膜的可能性。由于抑制剂分子的吸附和与铝阳离子形成络合物的结果，金属。结果表明，鼠李糖脂生物复合物是铝合金新形成的表面上的有效腐蚀抑制剂，