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装有二硫酸盐的Halloysite纳米管/环氧复合材料用于防腐蚀涂层

Weilin Liu¹, Jiansan Li²

¹School of Engineering and Information Technology, University of New South Wales, Canberra, ACT 2600, Australia.

|June 5, 2023

概括

这项研究开发了一种用于Q235碳钢的新型耐腐蚀涂层,该涂层使用装有硫酸盐 (SLS) 的修饰化纳米管 (HNT). 增强的环氧涂层在化物环境中表现出优越的保护.

科学领域:

材料科学材料科学材料科学
腐蚀工程腐蚀工程
纳米技术纳米技术

背景情况:

在化物环境中,Q235碳钢的腐蚀带来了重大挑战.
有效的耐腐蚀涂层对于材料保护至关重要.
化纳米管 (HNT) 具有作为活性腐蚀抑制剂的载体的潜力.

研究的目的:

开发和描述Q235碳钢的新型耐腐蚀涂层.
调查从改造的HNT中控制释放的二硫酸盐 (SLS).
在腐蚀性环境中评估包含改性HNT的环氧涂层的性能.

主要方法:

在真空下将SLS装入HNT.
在装有 SLS 的 HNT 上沉积多电解质层 (PDDA/PSS).
使用SEM,TEM,FTIR,TGA,UV-vis和zeta潜力进行表征.
在Q235碳钢上的环氧涂层中应用改性HNT.
电化学测量和水接触角度分析.

主要成果:

在HNT中实现了4.53%的SLS加载效率.
从PSS/PDDA/SLS/HNT中显示出SLS的pH反应释放.
已确认修改后的HNTs的优越热稳定性.
带有PSS/PDDA/SLS/HNT的环氧涂层表现出极好的耐腐蚀性.
涂层修改导致增强的疏水性.

结论:

修改后的HNTs提供有效的控制和pH响应释放SLS.
开发的环氧涂层为Q235碳钢提供了卓越的防腐蚀保护.
加入PSS/PDDA/SLS/HNT可以提高涂层性能和疏水性.

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