摘要
利用多巴胺(DA)对氧化石墨烯(GO)进行还原与改性得到DA-rGO纳米复合材料并添加到环氧富锌涂料中,制备了一种新型的DA-rGO/环氧富锌防腐蚀涂层。通过傅里叶红外光谱仪(FT-IR)、X射线衍射仪(XRD)等对DA-rGO纳米复合材料进行了表征,并对涂层的耐冲击性、硬度、附着力等物理性能,电化学性能和耐盐雾腐蚀性能进行了测试。结果表明:当DA-rGO的添加量为1%时,涂层的耐冲击性、硬度等物理性能达到最佳,且此时涂层具有最低的腐蚀电流密度与最高的腐蚀电位,防腐蚀效果最好。
DA-rGO nano composites were obtained by the reduction and modification of graphene oxide(GO)with dopamine(DA),and were added into epoxy zinc-rich coating to prepare a new DA-rGO/epoxy zinc-rich anticorrosive coating.The DA-rGO nano composites were characterized by Fourier transform infrared spectroscopy(FT-IR)and X-ray diffraction(XRD).The physical properties including impact resistance,hardness,adhesion of the coating as well as it electrochemical properties and salt-spray corrosion resistance were tested.The test results show that when the dosage of DA-rGO was 1%,the impact resistance,hardness and other physical properties of the coating reached the best,meanwhile the coating had the lowest corrosion current density and the highest corrosion potential,showing best corrosion resistance.
作者
赵书华
崔佳伟
段云飞
王树立
朱建康
饶永超
ZHAO Shuhua;CUI Jiawei;DUAN Yunfei;WANG Shuli;ZHU Jiankang;RAO Yongchao(School of Petroleum Engineering,Changzhou University,Changzhou 213016,China;Jiangsu Key Laboratory of Oil and Gas Storage and Transportation Technology,Changzhou University,Changzhou 213016,China;Shandong Lihuayi Group Co.,Ltd,Dongying 257000,China;School of Energy,Quanzhou Vocational and Technical University,Quanzhou 362268,China;Guangzhou Special Pressure Equipment Testing and Research Institute,Guangzhou 510663,China)
出处
《腐蚀与防护》
CAS
北大核心
2022年第8期1-7,共7页
Corrosion & Protection
基金
国家自然科学基金(5117605)
江苏省重点实验室开放基金(312035)
常州市科技计划(CE20160069)
常州市应用基础研究(CJ20200085)。
关键词
多巴胺
氧化石墨烯
物理性能
防腐蚀性能
dopamine
graphene oxide
physical property
corrosion resistance
