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材料导报  2021, Vol. 35 Issue (20): 20068-20075    https://doi.org/10.11896/cldb.20080173
  金属与金属基复合材料 |
基于MOFs材料的超疏水复合涂层的制备及其对碳钢的防腐蚀研究
韦文厂, 刘峥, 魏润芝, 刁娜, 吕奕菊
桂林理工大学化学与生物工程学院,电磁化学功能物质广西区重点实验室,桂林 541004
Research on Preparation of Superhydrophobic Composite Coating Based on MOFs Material and Its Anti-corrosion on Carbon Steel
WEI Wenchang, LIU Zheng, WEI Runzhi, DIAO Na, LYU YijuGuangxi
Key Laboratory of Electrochemical and Magneto-chemical Functional Materials, School of Chemical and Bioengineering, Guilin University of Technology, Guilin 541004, China
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摘要 利用三乙氧基-1H,1H,2H,2H-十三氟代正辛基硅烷(POTS)对合成的配合物Cu-MOF和Zn-MOF进行疏水性修饰,制备出Cu-MOF/POTS、Zn-MOF/POTS材料,然后利用红外光谱(FTIR)、扫描电镜(SEM)和能谱(EDS)等方法对其进行结构表征,并对其进行疏水性能测试。结果表明,经POTS修饰后的Cu-MOF和Zn-MOF均从原来的亲水性转变为疏水性。将Cu-MOF/POTS、Zn-MOF/POTS作为防腐助剂添加到环氧树脂中制备出Cu-MOF/POTS/EP、Zn-MOF/POTS/EP复合涂层,它们表现出超疏水的效果,水接触角分别达到154.8°、153.1°,且涂层耐久性和耐水性试验均表明它们具有良好的耐久性能和耐水性能。将所制备的涂层浸在3.5% (质量分数)NaCl腐蚀溶液中进行电化学测试,极化曲线与电化学阻抗结果均表明Cu-MOF/POTS/EP、Zn-MOF/POTS/EP复合涂层对水分子和腐蚀介质起到协同阻隔和屏蔽作用,展现出很好的疏水和防腐蚀性能,防腐蚀效率分别达到90.06%、88.84%,能有效保护碳钢不受腐蚀,与扫描电镜分析结果相符。
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韦文厂
刘峥
魏润芝
刁娜
吕奕菊
关键词:  金属有机框架材料  防腐蚀  碳钢  超疏水  涂层    
Abstract: The synthesized complexes Cu-MOF and Zn-MOF were hydrophobically modified by 1H,1H,2H,2H-Perfluorooctyltriethoxysilane (POTS) to prepare Cu-MOF/POTS and Zn-MOF/POTS materials, their structure were characterized and confirmed by Fourier infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy spectroscopy (EDS), and their hydrophobic properties are tested. The hydrophobic performance test results showed that the Cu-MOF and Zn-MOF modified by POTS have changed from the original hydrophilicity to the hydrophobicity. In addition, Cu-MOF/POTS, Zn-MOF/POTS are added as anticorrosion additives to epoxy resin to prepare Cu-MOF/POTS/EP, Zn-MOF/POTS/EP composite coatings, which exhibited t super hydrophobic effect, the water contact angle reached 154.8° and 153.1°, respectively. The coating durability and water resistance test showed that those composite coatings have good durability and water resistance. The prepared coatings were immersed in 3.5wt% NaCl corrosion solution for electrochemical test, and the results all showed that the Cu-MOF/POTS/EP, Zn-MOF/POTS/EP composite coatings have a synergistic barrier and shielding effect on the water separator and the corrosive medium, exhibited good hydrophobic and anti-corrosion performance, and the anti-corrosion efficiency are respectively reached 90.06% and 88.84%, it can effectively protect carbon steel from corrosive media, which was consistent with the results of scanning electron microscopy analysis of the coatings.
Key words:  MOFs    anti-corrosion    carbon steel    superhydrophobic    coating
               出版日期:  2021-10-25      发布日期:  2021-11-12
ZTFLH:  TG172.8  
基金资助: 广西自然科学基金(2016GXNSFAA380109;2018GXNSFAA294042)
通讯作者:  lisa4.6@163.com;league051@163.com   
作者简介:  韦文厂,桂林理工大学硕士研究生。主要从事有机合成与应用研究。
刘峥,教授,硕士、博士研究生导师,现任教于桂林理工大学化学与生物工程学院。2006年毕业于湘潭大学,获博士学位。主要研究应用有机合成新技术。近年来,发表科研论文90多篇,其中SCI、EI收录近60篇。
吕奕菊,博士。现在桂林理工大学化学与生物工程学院从事教学和科研工作。2014年毕业于广西大学,获博士学位。主要研究化工冶金与新材料制备技术。
引用本文:    
韦文厂, 刘峥, 魏润芝, 刁娜, 吕奕菊. 基于MOFs材料的超疏水复合涂层的制备及其对碳钢的防腐蚀研究[J]. 材料导报, 2021, 35(20): 20068-20075.
WEI Wenchang, LIU Zheng, WEI Runzhi, DIAO Na, LYU YijuGuangxi. Research on Preparation of Superhydrophobic Composite Coating Based on MOFs Material and Its Anti-corrosion on Carbon Steel. Materials Reports, 2021, 35(20): 20068-20075.
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http://www.mater-rep.com/CN/10.11896/cldb.20080173  或          http://www.mater-rep.com/CN/Y2021/V35/I20/20068
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