Abstract: It is found that the RFH epoxy coating changed obviously in terms of film appearance and surface morphology by analysis of film appearance， distortion measure and surface topography. Specifically， the coating turns its semi-gloss into matte appearance and serious curling， blister and micro-crack occur. The FT-IR spectroscopy shows that the peak of epoxy resin is weakened. The results show that the plasticity of the coating surface decreases and its adhesion also decreases due to inner stress which results in film defects including blister， flatting and crack. By means of modification of supporting protective coating， it is indicated that the silicone coating and primer are effective to improve the humid heat resistance of the epoxy coating.
田共有. 湿热环境中阳极氧化铝合金表面RFH环氧涂层的防护性能及其改善[J]. 涂料工业, 2018, 48(2): 1-005.
Tian Gongyou. Influence of Damp Heat Test on Protective Performance of RFH Epoxy Coating and Its Improvement. Paint & Coatings Industry, 2018, 48(2): 1-005.