织物织造参数及表面疏水性对光子晶体结构色的影响

以单分散聚(苯乙烯-甲基丙烯酸)(P(St-MAA))微球为结构基元,采用重力沉降自组装法在涤纶织物上构建光子晶体结构色薄膜,探究织物织造参数及表面疏水性能对光子晶体结构色效果的影响,并分析结构色的调控方式.通过场发射扫描电镜、视频显微镜和紫外-可见分光光度仪观测光子晶体的排列状况、结构色均匀性和鲜艳性、结构色反射率曲...

Influence of Weaving Parameters and Surface Hydrophobic Properties of Woven Fabrics on Photonic Crystal Structural Colors

Photonic crystal film with structural colors is constructed on polyester fabrics by a gravity deposition self-assembly method with monodisperse poly(styrene-methacrylic acid)(P(St-MAA))microspheres as structural elements.It is intended to explore the effect of fabric weaving parameters and surface hydrophobic properties on the structural color effect of photonic crystals,and analyze the control methods of structural colors.Field emission scanning electron microscope(SEM),video microscope and ultraviolet-visible spectrophotometer are used to observe the arrangement of photonic crystals,uniformity and brightness of structural colors and reflectance curves of structural colors.The results show that with the same weaving parameters,photonic crystal film with bright structural colors can be obtained with microsphere assembly solution with a mass fraction of 2%if plain weave fabrics are provided;in respect of plain weave fabrics,dense fabrics are easy for obtaining photonic crystals with bright structural colors.As the hydrophobicity of fabrics increases,it becomes more difficult for microsphere assembly solution to spread penetrate on the surface,the more heavily the photonic crystal film cracks,and the brightness of the structural color decreases.With other parameters remaining unchanged,the hue of structural colors can be regulated by adjusting the grain size of structural motif and observation angle.Structural colors will produce blue shift if the grain size of structural motif decreases or the observation angle increases.This study provides a reference for constructing bright and uniform structural colors on textile substrate.