纳米氧化物颗粒增强环氧涂层防护性能的研究进展

Research Progress on Protective Properties of Epoxy Coatings Reinforced by Nanometer Oxides

摘要:

纳米氧化物凭借其特殊的尺寸和结构能够有效填补环氧树脂在固化过程中因局部收缩形成的微裂纹和孔道。同时纳米氧化物的高硬度等特点还能够显著提高环氧涂层的机械性能，因此其在涂层防护领域得以广泛应用。本文结合国内外最新研究进展，综述了以二氧化硅、二氧化钛、氧化锌、氧化铝以及氧化铈为代表的五种纳米氧化物的特性及其在环氧涂层中的应用，包括对各类纳米氧化物的结构和性能特点进行了归纳总结，对不同氧化物的不同改性效果进行了对比分析以及对涂层防护性能的增强机理进行了详细讨论。最后，对纳米氧化物在防腐涂层中的未来发展方向进行了展望。

Abstract:

Nano-oxides with special sizes and structures can effectively fill the microcracks and pores of epoxy resin that formed by local shrinkage during the curing process. Besides, the mechanical property of epoxy coating can be significantly enhanced by intrinsic high hardness of nano-oxides, which thus are widely applied in the field of coating protection. In this paper, based on the latest research progress at home and abroad, the characteristics of nano-oxides, e.g. silica, titanium dioxide, zinc oxide, alumina oxide and ceria oxide, and their applications in epoxy coating were reviewed, including summarizing the structure and performance characteristics of various nano-oxides, comparing the different modification effects of different nano-oxides, and discussing the strengthening mechanisms of coatings in detail. Finally, the future development trend of nano-oxides in anti-corrosive coating is prospected.