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首页> 外文期刊>The Journal of the Textile Institute >Spectral and physical properties organo-silica coated photochromic poly-ethylene terephthalate (PET) fabrics
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Spectral and physical properties organo-silica coated photochromic poly-ethylene terephthalate (PET) fabrics

机译：光谱和物理性质有机硅胶涂层光苯二甲酸酯（PET）织物

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Abstract In this study, photochromic fabrics were prepared by incorporating the spirooxazine derivative of 5-chloro-1,3-dyhydro-1,3,3-trimethylspiro[2H-indole-2,3′-[3H]-naphth [2,1-b] [1,4] oxazine on the polyethylene terephthalate (PET) fabric through a sol-gel coating process. The treated fabrics showed good photochromic response under UV irradiation. In this work, three types of silane were used as the silica precursor and the resultant coatings showed a significant difference in their photochromic response such as Kubelka–Munk function (K/S), change in optical density (ΔOD) rate constant and half-life. The coated fabric shows two different absorption maxima and however it confirms that there is strong influence on the type of silane. The functional group of uncoated and sol-gel coated fabrics are analyzed by ATR-FTIR. The type of the silane also influences the physical properties of the coated fabrics. The surface characteristics were analyzed by scanning electron microscope (SEM) and laser scanning confocal microscope (LSCM), which showed significant changes in the surface micro-roughness after coating.
机译：摘要在本研究中，通过掺入5-氯-1,3-二氢-1,3,3-三甲基苯胺的螺氧嗪衍生物来制备光致变色织物[2h-indole-2,3' - [3h] - 荷族[2， 1-B]通过溶胶 - 凝胶涂布方法在聚对苯二甲酸乙二醇酯（PET）织物上的7-1b] [1,4]。经处理的织物在紫外线照射下显示出良好的光致变色反应。在这项工作中，使用三种类型的硅烷作为二氧化硅前体，并且所得涂层在其光致变色响应（如Kubelka-Munk函数（K / S））上显示出显着差异，光密度（ΔOD）速率恒定和半部的变化生活。涂层织物显示出两种不同的吸收最大值，但它证实对硅烷的类型产生了强烈影响。通过ATR-FTIR分析未涂覆和溶胶 - 凝胶涂层织物的官能团。硅烷的类型也影响涂层织物的物理性质。通过扫描电子显微镜（SEM）和激光扫描共聚焦显微镜（LSCM）分析表面特征，这在涂覆后表面微粗糙度显示出显着变化。

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