金属有机框架(MOFs)材料在防腐涂层中的应用研究进展

Research Progress of Metal-organic Frameworks(MOFs)Materials in Anticorrosive Coating

有机涂层在固化过程或长期使用中会出现裂纹、微孔等局部缺陷,导致有机涂层的预期防腐效果大大降低。近年来,金属有机框架(MOFs)涂层在构建高效耐用的金属防护材料方面展现出巨大的潜力。介绍了MOFs材料的结构特点和近年研究进展,从4个方面阐述了其在涂层中的防腐机理:通过MOFs的特殊结构改性纳米填料提高涂层抗渗透性、MOFs缓蚀剂阻止金属腐蚀、MOFs自修复材料弥补涂层缺陷、通过MOFs结构特性构建超疏水涂层。以上基于MOFs的复合防腐涂层已表现出巨大的研究潜力和商业价值,但MOFs涂层材料的大规模商业化应用,仍需在环保、低成本、产品稳定等多个方面做出努力。

Organic coating may exhibit local defects such as cracks and micro-pores during the curing process or prolonged usage,leading to a significant reduction in the expected corrosion resistance of these coating.In recent years,Metal-organic frameworks(MOFs)coating have demonstrated tremendous potential in the development of highly efficient and durable metal protective materials.The structural characteristics and recent research progress of MOFs materials were introduces,and their corrosion protection mechanisms within coating were described from four key perspectives:improvement of coating permeation resistance by special structure-modified nanofillers of MOFs,prevention of metal corrosion by corrosion inhibitors of MOFs,remediation of coating defects by self-repairing materials of MOFs,and construction of superhydrophobic coating by structural properties of MOFs.The composite anticorrosive coating based on MOFs have shown significant research potential and commercial value.Nevertheless,the large-scale commercial application of MOFs coating materials still needs to make efforts in many aspects,such as environmental considerations,costeffectiveness,and product stability.