在现场聚合自愈微囊作为多功能填充剂,用于酸盐陶涂层
Jianyu Wang1, Meiping Wu1,2, Jiaqi Huang1
1School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China.
ACS applied materials & interfaces
|May 10, 2024
概括
化学结合酸盐陶涂层 (CBPC) 通过使用含有PFDTES的微囊增强了自我愈合能力. 这些新型涂料具有卓越的腐蚀和耐磨性,对于在恶劣环境中保护金属至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 腐蚀科学 腐蚀科学
- 表面工程是什么?表面工程是什么?
背景情况:
- 化学结合酸盐陶涂层 (CBPC) 由于微孔和腐蚀条件下自我愈合不良而受到保护效率的降低.
- 提高耐腐蚀性,耐磨性和自我修复性对于酸陶涂层在苛刻的应用中至关重要.
研究的目的:
- 设计和评估一种新型的自我修复酸盐陶涂层,以提高耐腐蚀和耐磨性.
- 调查自我愈合机制和微囊在涂层性能中的作用.
主要方法:
- 在位聚合含有1H,1H,2H,2H- perfluorodecyltriethoxysilane (PFDTES) 的尿素-甲 (UF) 微囊在酸盐陶涂层矩阵内.
- 通过电化学阻抗光谱学评估耐腐蚀性,通过 tribological 测试评估耐磨性.
主要成果:
- 与纯CBPC相比,MC-PT@CBPC涂层 (x = 0.5,1.0,1.5) 的腐蚀抑制效率超过90%,阻抗模量增加了1-2个数量级.
- 涂料在长时间浸泡时表现出积极的自我愈合,这归因于PFDTES释放和薄膜形成,增强了疏水性和粘合性.
- 由于独特的微型结构和滑PFDTES膜,观察到硬度提高,磨损率降低和摩擦系数降低.
结论:
- 开发的MC-PT@CBPC涂层提供了卓越的防腐蚀保护, tribological 特性和自我修复能力.
- 新型的微纳结构和现场自我修复机制为在恶劣环境中先进的保护涂层提供了有希望的方法.
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