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贾努斯GO/BTA/PMMA微囊用于具有超高性能的基于生物的自我修复抗腐蚀涂料

Wentao Wu¹, Gaojie Zhao¹, Liangyong Chu¹

¹State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, People's Republic of China.

ACS applied materials & interfaces

|September 19, 2024

概括

研究人员使用Janus石墨烯氧化物 (GO) 微囊开发了先进的基于生物的抗腐蚀涂层. 这些涂层提供卓越的屏障性能和实时保护,克服了自愈材料的关键挑战.

科学领域:

材料科学材料科学材料科学
腐蚀科学腐蚀科学
纳米技术纳米技术

背景情况:

自愈的抗腐蚀涂层面临的挑战是降低了屏障性能,并且在愈合过程中缺乏实时保护.
现有的微囊技术往往会损害涂层的完整性和保护能力.

研究的目的:

开发一种具有增强屏障性能和持续保护的新型自愈抗腐蚀涂层.
通过利用Janus石墨烯氧化物 (GO) 结构来解决当前自我愈合的微囊的局限性.

主要方法:

在油水界面上使用本佐特醇 (BTA) 合成Janus GO.
准备JanusGO/BTA/多甲基酸微囊的方法.
使用光谱 (EDS,FTIR,拉曼,UV-Vis) 和显微镜 (SEM) 进行表征;用于性能评估的电化学阻抗光谱 (EIS).

主要成果:

确认了Janus GO的形成,具有明显的水友和疏水表面.
通过SEM观察到微囊的高GO覆盖率.
在60天浸泡在NaCl中后,使用Janus GO微囊的生物基涂层表现出高阻抗 (>10^10 Ω·cm2) .
涂层阻抗在划伤后保持稳定,表明自愈和实时BTA保护.

结论:

雅努斯GO微囊策略有效地提高了屏障性能,并在自愈抗腐蚀涂层中提供实时保护.
与现有的自愈抗腐蚀系统相比,开发的生物基涂层显示出更高的性能.
这种方法为长期防止腐蚀提供了一个有希望的解决方案.

关键词:

雅努斯 GO 雅努斯 GO 在线抗腐蚀的方法抗腐蚀的方法具有屏障特性,具有屏障特性.实时保护实时保护它具有自我愈合的功能.

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