多巴胺改性氧化石墨烯对环氧富锌涂层性能的影响  

Effect of Dopamine Modified GO on Properties of Epoxy Zinc-Rich Coatings

作　　者：赵书华 崔佳伟[1,3] 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)

机构地区：[1]常州大学石油工程学院,常州213016 [2]常州大学江苏省油气储运技术重点实验室,常州213016 [3]山东利华益集团股份有限公司,东营257000 [4]泉州职业技术大学能源学院,泉州362268 [5]广州特种承压设备检测研究院,广州510663

出　　处：《腐蚀与防护》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)。

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.

关 键 词：多巴胺 氧化石墨烯 物理性能 防腐蚀性能 

分 类 号：TG174[金属学及工艺—金属表面处理]