适应pH值的热聚合物涂层,用于对腐蚀的积极保护
Joseph Watson1, Victoria Balmforth2, Elaine Gray2
1Northumbria University, Newcastle upon Tyne NE1 8ST, U.K.
ACS applied materials & interfaces
|March 1, 2024
概括
含有受保护氨基酸的新型功能聚合物显著增强抗腐蚀涂层. 这些聚合物减少了表面的丝状腐蚀,提供了更好的保护和对pH响应涂层机制的洞察力.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 腐蚀科学 腐蚀科学
背景情况:
- 开发先进的聚合物涂层对于保护金属基板至关重要.
- 功能性单体使得可针对特定应用的聚合物特性得以量身定制.
- 了解腐蚀机制是设计有效保护策略的关键.
研究的目的:
- 合成新型的多功能甲烯基单体,其中包含受保护的氨基酸.
- 将这些单体与环氧功能单体共聚合,以创建先进的聚合物.
- 评估这些聚合物在基板上的粉末涂料中的抗腐蚀性能.
主要方法:
- 使用 tert-butylcarbamate 保护的甘氨酸 (BOC-Gly-MA) 合成一种新型甲烯基单体.
- BOC-Gly-MA与一个甘氨基基甲酸盐 (GMA) 单体的联合聚合.
- 将共聚合物加工成粉末涂料,并对的线状腐蚀 (FFC) 进行评估.
- 使用溶液和接口研究研究对腐蚀保护机制的研究.
主要成果:
- 含有BOC-Gly-MA的共聚物表现出优越的抗腐蚀性能.
- 涂料的平均FFC轨道长度,FFC数量和腐蚀表面积 (CSA) 最低.
- 一个拟议的机制突出了BOC-Gly功能聚合物的作用在pH响应性腐蚀保护中.
结论:
- 新型氨基酸衍生功能聚合物显著提高了涂料的抗腐蚀性能.
- 开发的聚合物提供了对的线形腐蚀增强的保护.
- 获得了对响应pH的聚合物涂层保护作用的新见解.
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