In recent years, structural colored coatings have become a hot spot for research because of the advantages of colorfast and eco-friendly. Nevertheless, it is still a great challenge to balance the conflict among color, luminosity, saturation and angle dependence of the coatings. In this work, we used electrophoretic deposition (EPD) technique with variable voltage assembly to deposit polydopamine coated polystyrene nanoparticles (PS@PDA NPs) with poly (dimethyldiallylammonium chloride) (PDDA). By varying the voltage of the EPD duration, structural colored coatings with hierarchical structure were prepared, which exhibited bright colors with low angle dependence. More importantly, the films could be coated on curved surfaces and other complicated shapes, which would have many practical applications in the future.

近年来，由于不褪色和环保的优点，结构性彩色涂料已成为研究的热点。然而，平衡涂层的颜色，发光度，饱和度和角度依赖性之间的冲突仍然是巨大的挑战。在这项工作中，我们使用了具有可变电压组件的电泳沉积（EPD）技术来沉积带有聚二甲基二烯丙基氯化铵（PDDA）的聚多巴胺涂层聚苯乙烯纳米颗粒（PS @ PDA NPs）。通过改变EPD持续时间的电压，制备了具有分层结构的结构性彩色涂层，其呈现出具有低角度依赖性的亮色。更重要的是，这些膜可以涂覆在弯曲的表面和其他复杂的形状上，这在将来将有许多实际应用。