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首页> 外文期刊>Coatings >Investigation of Polystyrene-Based Microspheres from Different Copolymers and Their Structural Color Coatings on Wood Surface
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Investigation of Polystyrene-Based Microspheres from Different Copolymers and Their Structural Color Coatings on Wood Surface

机译：不同共聚物的聚苯乙烯基微球及其在木材表面上的结构彩色涂层研究

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摘要

Six kinds of polystyrene (PSt)-based colloidal microspheres were synthesized by adding acrylic acid (AA), methyl methacrylate (MMA), and butyl acrylate (BA) as comonomers in styrene emulsion polymerization. The structurally colored coatings on a wood surface were self-assembled by thermally assisted gravity deposition of these microspheres. Chemical compositions and structures of microspheres and morphological characteristics of microspheres and structural color coatings, as well as optical properties of coatings and their generated structural colors, were studied. Pure PSt microspheres had a smooth surface and uniform structure, while microspheres of copolymers had core–shell morphologies and a rough surface. Only poly(styrene-acrylic acid) (P(St-AA)) microspheres had good monodispersity and the resulting coating had a well-ordered photonic crystal structure. However, other kinds of microspheres could form short ranges of ordered amorphous photonic crystal structures and they displayed structural colors. Both the reflectivity of coatings to visible light and structural colors varied with microsphere size and self-assembly temperature.
机译：通过在苯乙烯乳液聚合中加入丙烯酸（AA），甲基丙烯酸甲酯（MMA）和丙烯酸丁酯（BA）作为共聚单体来合成六种聚苯乙烯（PST）的胶体微球。木表面上的结构上色涂层通过这些微球的热辅助重力沉积自组装。研究了微球和结构颜色涂层的微球和形态特征的化学组成和结构，以及涂料的光学性质及其产生的结构颜色。纯PST微球具有光滑的表面和均匀的结构，而共聚物的微球具有核心壳形态和粗糙表面。只有聚（苯乙烯 - 丙烯酸）（P（ST-AA））微球具有良好的单反叠体，并且所得涂层具有良好有序的光子晶体结构。然而，其他种类的微球可以形成有序非晶光子晶体结构的短范围，并且它们显示了结构颜色。涂层的反射率与可见光和结构颜色都随微球尺寸和自组装温度而变化。

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