新型碳纳米材料用于有机防腐涂层的研究进展

Research Progress of New Carbon Nanomaterials Used in Organic Anticorrosive Coatings

综述了碳纳米材料用于腐蚀防护中的研究进展,重点介绍了几种碳纳米材料,包括富勒烯、碳纳米管、碳纳米纤维、石墨烯、石墨炔以及碳点。碳纳米材料具有优异润滑性能、导电导热性能和屏蔽性能等,在涂层防护领域具有广阔应用前景。具有二维片层结构的碳纳米材料,可在涂层内部构建多重高效屏障,有效提升涂层的屏蔽性能。碳纳米材料的表面存在负电荷,可有效地抑制氯离子和氢氧根离子的渗透过程,降低涂层与金属界面间的阴离子浓度,减缓涂层与金属界面发生腐蚀的几率。碳纳米材料本身具有润滑性能,可实现减摩,提升涂层的耐磨性能。此外,对碳纳米材料涂层的制备、性能及防腐机理等进行了详细阐述,对碳纳米材料在有机防腐涂层中的发展前景进行了展望。

This paper reviews the research progress of carbon nanomaterials in corrosion protection,focusing on several carbon nanomaterials,including fullerenes,carbon nanotubes,carbon nanofibers,graphene,graphyne and carbon dots.Carbon nanomaterials have excellent lubricating properties,electrical and thermal conductivity,and shielding properties,and have broad application prospects in the field of coating protection.Carbon nanomaterials with a two-dimensional lamella structure can build multiple high-efficiency barriers inside the coating,effectively improving the shielding performance of the coating.The presence of negative charges on the surface of carbon nanomaterials can effectively inhibit the penetration of chloride and hydroxide ions,reduce the concentration of anions between the coating and the metal interface,and slow down the probability of corrosion at the coating and metal interface.Carbon nanomaterials have lubricating properties,which can reduce friction and improve the wear resistance of the coating.In addition,this paper elaborates on the preparation,performance and anticorrosion mechanism of carbon nanomaterial coatings,and the development prospects of carbon nanomaterials in organic anticorrosive coatings.