来自玉米油的生物基离子表面活性剂的开发和评估,用于保护温和钢的腐蚀
Isra Elsamani1, Olufemi Oni1, Yun Ji1
1Chemical Engineering Department, University of North Dakota, Grand Forks, ND 58202, United States.
ACS omega
|December 1, 2025
概括
这项研究引入了一种新的玉米油衍生的表面活性剂,P-COMES,作为一种可持续的腐蚀抑制剂. 纯化的P-COMES在防止盐水环境中的钢铁腐蚀方面表现出比其未纯化的形式更高的效率.
科学领域:
- 材料科学 材料科学 材料科学
- 绿色化学 绿色化学
- 腐蚀科学 腐蚀科学
背景情况:
- 对于可持续的,非化石材料的需求不断增长.
- 需要有效,低毒性和成本效益的化学品.
- 腐蚀给工业带来了重大挑战,特别是在盐水环境中.
研究的目的:
- 从玉米油中合成和净化绿色表面活性剂,以抑制腐蚀.
- 为了评估净化表面活性剂的表面活性和腐蚀缓解性能.
- 确定这种生物衍生表面活性剂作为工业腐蚀抑制剂的潜力.
主要方法:
- 玉米油衍生甲基硫酸盐 (COMES) 通过转化和硫化合成.
- 使用洗,提取和溶剂去除来获得P-COMES的COMES的净化.
- 使用FT-IR和1H NMR光谱学进行表征.
- 表面活动分析 (CMC确定).
- 在NaCl溶液中对C1018碳钢进行电化学腐蚀研究 (EIS,OCP).
- 使用SEM-EDS进行表面分析.
主要成果:
- 与COMES (2重%,36.38 mN/m) 相比,P-COMES的CMC明显较低 (1重%,22.7 mN/m),这表明表面活性剂的效率提高.
- 在1000ppm时,P-COMES实现了98.31%的腐蚀抑制效率,远高于COMES (64.17%).
- 据SEM-EDS证实,钢表面上由P-COMES形成的均保护膜.
- 净化有效地去除了杂质,增强了两性质和性能.
结论:
- 纯化玉米油衍生甲基硫酸盐 (P-COMES) 是一种高效且环保的腐蚀抑制剂.
- 由于纯度提高和两结构,P-COMES表现出比COMES更好的性能.
- 该研究强调了P-COMES在具有挑战性的盐水条件下工业应用的潜力.
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