Antimicrobial coatings can act as an effective barrier to microbial growth and colonization in jet fuel tanks, which can effectively avoid the safety problems and economic losses. In this study, we initially synthesized an antimicrobial and water-insoluble complex, poly (hexamethylene guanidine) hydrochloride-sodium stearate (PHMG-SS), and its minimum inhibitory concentrations (MICs) were measured as 0.25 g/L, 0.25 g/L, 0.25 g/Land 0.5 g/L against Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Yarrowia lipolytica, respectively; then, PHMG-SS was facilely coated onto the surface of aluminum substrate by the aid of a green linker, polyvinyl butyral (PVB). The PHMG-SS-coated aluminum exhibited a powerful microbicidal activity against the above four microorganisms, and provided a greater than 99.999% (5 log) reduction in viable counts of experimental microorganisms within 30 min through contact. In addition, the antimicrobial performance could still be observed after 7 d of ultraviolet radiation or soaking in jet fuel. Furthermore, the antimicrobial mechanism was investigated and concluded as damaging the microbicidal morphologies and suppressing the activity of respiratory chain dehydrogenase. Finally, PHMG-SS-coated aluminum was evaluated as interior surface of jet fuel tanks to protect jet fuel, and the experimental results showed that PHMG-SS-coated aluminum achieved a greater than 99.9999% (6 log) reduction in viable counts of a mixed suspension of Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Yarrowia lipolytica within 30 min. The outputs from this work represent a highly versatile approach to build an antimicrobial barrier to protect jet fuel from microbial contamination, and such approach is also worthy of wide application to treat other surfaces.

抗菌涂层可作为航空油箱微生物生长和定殖的有效屏障，可有效避免安全问题和经济损失。在本研究中，我们最初合成了一种抗微生物且不溶于水的复合物聚（六亚甲基胍）盐酸盐-硬脂酸钠 (PHMG-SS)，其最低抑菌浓度 (MIC) 分别为 0.25 g/L、0.25 g/L 0.25克/土地0.5g / L的对大肠杆菌，金黄色葡萄球菌，枯草芽孢杆菌和脂耶氏酵母， 分别; 然后，借助绿色接头聚乙烯醇缩丁醛 (PVB)，将 PHMG-SS 轻松涂覆到铝基材表面。PHMG-SS 涂层铝对上述四种微生物表现出强大的杀微生物活性，并且通过接触在 30 分钟内使实验微生物的活菌数减少了 99.999%（5 log）以上。此外，在紫外线照射或在喷气燃料中浸泡 7 天后仍可观察到抗菌性能。此外，对抗菌机制进行了研究并得出结论：破坏微生物形态并抑制呼吸链脱氢酶的活性。最后，PHMG-SS 涂层铝被评估为喷气燃料箱的内表面以保护喷气燃料，大肠杆菌，金黄色葡萄球菌，枯草芽孢杆菌和脂耶氏酵母在30分钟内。这项工作的成果代表了一种高度通用的方法来建立抗菌屏障以保护喷气燃料免受微生物污染，这种方法也值得广泛应用于处理其他表面。