海洋防污涂料

沸石咪唑骨架材料( ZIF-8)原位生长改性玄武岩鳞片 /环氧防腐抗菌涂层的制备与性能

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  • 南海海洋资源利用国家重点实验室,海南大学材料科学与工程学院,海口 570228

网络出版日期: 2023-10-01

基金资助

国家自然科学基金( 52261045、51963008);海南省研究生创新科研课题( Qhys2021-149) 

Preparation and performance of ZIF-8 in-situ growth modified basalt flake/epoxy anti-corrosion and antimicrobial coating

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  • School of Materials Science and Engineering,State Key Laboratory of Marine Resource Utilization in South China Sea,Hainan University,Haikou 570228,China

Online published: 2023-10-01

摘要

通过一锅法在硅烷偶联剂改性的玄武岩鳞片( MBS)表面原位生长沸石咪唑骨架材料(ZIF-8)得到 MBS@ZIF-8新型复合填料,随后与环氧树脂( EP)复合构建了一种新型抗菌耐腐蚀环氧涂层( MBS@ZIF-8/EP)。通过扫描电子显微镜( SEM)、 X射线衍射仪(XRD)和傅立叶变换红外光谱仪(FT-IR)对 MBS@ZIF-8的形貌、成分进行表征,通过平板计数法探究了 MBS@ZIF-8对大肠杆菌和金黄色葡萄球菌的抑菌性能,通过电化学阻抗谱( EIS)探究 MBS@ZIF-8对环氧涂层耐腐蚀性的影响。结果表明:制备的 MBS@ZIF-8复合填料表现出优异的抗菌性能,对大肠杆菌和金黄色葡萄球菌的抑菌效率均可达 90%以上;同时 MBS@ZIF-8能有效提高环氧涂层的耐腐蚀性和机械性能。其中, MBS@ZIF-8/EP涂层的 |Z|0. 01 Hz相较于 EP涂层提升了 3个数量级,硬度为 6H。在 1 080 h的中性盐雾试验后,该涂层表面无明显腐蚀现象,表明 MBS@ZIF-8/EP涂层具有优异的机械性能与防腐抗菌性能。

本文引用格式

黄蕾, 方志强, 熊杨凯, 等 . 沸石咪唑骨架材料( ZIF-8)原位生长改性玄武岩鳞片 /环氧防腐抗菌涂层的制备与性能[J]. 涂料工业, 2023 , 53(10) : 23 -31 . DOI: 10.12020/j.issn.0253-4312.2023-083

Abstract

In this study,the Zeolite imidazolate framework-8(ZIF-8)was in-situ grown on the surface of silane coupling agent modified basalt scale(BS)by one-pot synthesis to obtain the new composite filler(MBS@ZIF-8),which was then used to construct a new type ofanti-bacterial and corrosion-resistant epoxy coating(MBS@ZIF-8/EP). The morphology andcomposition of MBS@ZIF-8 was characterized by scanning electron microscope(SEM),X-ray diffractometer(XRD)and Fourier transform infrared spectroscopy(FT-IR). The bacteriostatic properties against E. coli and S. aureus of MBS@ZIF-8 were investigated by plate countingmethod,and its effect on the corrosion resistance of epoxy coating was investigated byelectrochemical impedance spectroscopy(EIS). The results showed that the preparedMBS@ZIF-8 composite filler had excellent antibacterial performance,with the antibacterial efficiency of E. coli and S. aureus more than 90%. Meanwhile the MBS@ZIF-8 couldeffectively increase the corrosion resistance and mechanical properties of the epoxy coating.Compared with the pure epoxy coating,the |Z|0. 01 Hz of MBS@ZIF-8/EP was upgraded by 3 orders of magnitude,and the hardness reached 6H. No obvious corrosion phenomenon wasobserved on the MBS@ZIF-8/EP coating surface after 1 080 h of neutral salt spray,showingexcellent mechanical and anti-corrosion properties.
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