Pigments are added into coatings to enhance aesthetical properties and other functionalities, such as UV stability and corrosion resistance. In this study, one-coat epoxy system with bright orange color, UV stability, and corrosion resistance were developed by incorporating diketopyrrolopyrrole (DPP) into epoxy resins. A set of coating formulations were generated with different pigment volume concentrations. Coatings with different formulations were exposed in UV aging chamber for different time periods. The UV stability of the coatings were evaluated by color difference, gloss retention, and thickness change. Techniques including UV/Vis, SEM, optical microscope, FTIR, and EIS were used to characterize the performance of DPP pigmented epoxy coatings. The one-coat epoxy system retained the two properties of UV stability and corrosion resistance.

将颜料添加到涂料中可增强美学特性和其他功能，例如紫外线稳定性和耐腐蚀性。在这项研究中，通过将二酮基吡咯并吡咯（DPP）掺入环氧树脂中，开发了具有亮橙色，紫外线稳定性和耐腐蚀性的单涂层环氧树脂体系。产生了具有不同颜料体积浓度的一组涂料配方。将具有不同配方的涂料在紫外线老化箱中暴露不同的时间。通过色差，光泽保持力和厚度变化来评估涂层的紫外线稳定性。使用包括UV / Vis，SEM，光学显微镜，FTIR和EIS在内的技术来表征DPP着色环氧涂料的性能。单涂层环氧体系保留了紫外线稳定性和耐腐蚀性的两个特性。