Abstract:

In order to develop the structural coloration application of inorganic/polymer composite microspheres in textiles, on the basis of the preparation of SiO2/PMMA microspheres with good monodispersity and controllable particle size, the ordered array of SiO2/PMMA photonic crystals were fabricated by vertical deposition self-assembly on the surface of polyester fabrics. FESEM, 3D video microscope and multi-angle spectrophotometer were applied to observe the arrangements and characterize the structural colors of photonic crystals. The results indicated that the SiO2/PMMA photonic crystals on the surface of polyester fabrics present three-dimensional orderly non-close packed face-centered cubic structure, displaying bright structural colors, and changed with the particle sizes. In different view angles, SiO2/PMMA photonic crystals present different hues and saturation indicating strong iridescent phenomena on the polyester fabrics.

Key words: photonic crystal, structural color, vertical deposition self-assembly, SiO2/PMMA microsphere, non-close packed structure