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来自基什石墨的氨基基改性石墨烯氧化物,用于增强水载环氧涂料的耐腐蚀性
Shengle Hao1,2, Siming Wan1, Shiyu Hou2
1School of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China.
Materials (Basel, Switzerland)
|March 13, 2024
概括
这项研究开发了使用氨基功能化石墨烯氧化物 (AGO) 进行先进的水性环氧涂层,以获得卓越的耐腐蚀性. 经过AGO改进的涂料表现出了特殊的长期保护,性能优于传统涂料.
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:
- 水性环氧 (WEP) 涂层广泛用于防腐蚀.
- 提高WEP涂料的抗腐蚀性能仍然是一个重大挑战.
- 石墨烯氧化物 (GO) 和其衍生品为提高涂层性能提供了潜力.
研究的目的:
- 合成和表征氨基功能化石墨烯氧化物 (AGO).
- 将AGO纳入WEP涂层以提高其耐腐蚀性.
- 评估开发的复合涂料的抗腐蚀性能.
主要方法:
- 石墨烯氧化物 (GO) 是从基什石墨中制备的,并经过修改以创建AGO.
- 使用XRD,拉曼,FT-IR,SEM和TEM进行了GO和AGO的结构分析.
- 进行了电化学测量,拉开粘附测试和盐喷涂测试,以评估抗腐蚀性能.
主要成果:
- 经过AGO修饰的石墨烯氧化物已成功合成和表征.
- 含有0.15%重量AGO (AGO15/WEP) 的WEP涂层表现出最佳的抗腐蚀性能.
- 与纯WEP相比,AGO15/WEP的最低频阻抗模量显著增加.
- 在200小时的盐喷涂测试后,AGO15/WEP显示出最小的腐蚀和泡.
结论:
- 氨基功能化石墨烯氧化物有效地提高了水性环氧涂料的耐腐蚀性.
- AGO15/WEP配方提供了特殊的长期防腐保护.
- 这项研究为开发高性能抗腐蚀涂料提供了有前途的方法.
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