表面素在生物界面上的多功能行为:抑制腐蚀,抗氧化活性和体性质
Yuliia Miliar1, Margarita Skiba2, Deisi Altmajer-Vaz3
1Chemical Technology Department, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv 03056, Ukraine; Chemical Engineering Department, University of Granada, Avda. Fuentenueva s.n, Granada 18071, Spain.
Colloids and surfaces. B, Biointerfaces
|February 13, 2026
概括
在中性介质中,Surfactin通过形成保护膜,有效地抑制碳钢腐蚀. 这种生物表面活性剂显示出显著的抗氧化和抗根性质,使其成为一个有前途的绿色腐蚀抑制剂.
科学领域:
- 材料科学与工程 材料科学与工程
- 电化学 电化学 电化学
- 表面化学 表面化学
背景情况:
- 碳钢的腐蚀是一个重大的工业挑战,特别是在中性环境中.
- 传统的腐蚀抑制剂可能会给环境带来风险.
- 越来越需要可持续和有效的腐蚀缓解策略.
研究的目的:
- 在中性介质中研究表面素作为碳钢的新型腐蚀抑制剂.
- 为了阐明表面素的物理化学特性和腐蚀抑制机制.
- 评估表面素作为腐蚀抑制剂的绿色和环保潜力.
主要方法:
- 物理化学分析:表面张力,电导率,临界微粒度 (CMC).
- 抗氧化和抗激素活性评估使用循环电压测量与DPPH基.
- 电化学研究:极化曲线,电化学阻抗光谱学.
- 量子化学计算:HOMO,LUMO能量,全球硬度,电子转移分数.
- 腐蚀性能评估:重力测量分析,表面表征 (FTIR,SEM/EDS).
主要成果:
- 表面素表现出显著的抗激素活性和抗氧化潜力,通过电化学减少DPPH激素得到证实.
- 量子化学分析表明表面素的电子捐赠能力和稳定性,支持其腐蚀抑制机制.
- 表面素显著降低碳钢的腐蚀电流密度,作为混合型抑制剂,形成保护膜.
- 表面分析证实了表面素分子的吸附和钢面上形成的保护层.
结论:
- 在中性环境下,Surfactin是碳钢的高效绿色腐蚀抑制剂.
- 它的机制涉及对钢表面的吸附,形成保护性屏障,并抑制阳极和正极腐蚀反应.
- 表面胺为传统腐蚀抑制剂提供了一个可持续的替代品.
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