Abstract The aim of this study was to obtain functional features by coating the quartz lamella with a sol-gel technique. Smart functional material was developed by including microencapsulated thermochromic pigments in coatings. Using anatase powder titanium (IV) oxide with additions in different ratios, the coatings were applied to the quartz lamel surfaces by dip-coating technique. The sol formulation was made using the initial precursors Tetraethoxysilane (TEOS) and 3-aminopropyltriethoxysilane (APTES). Tetraethoxysilane was added to the structure of the coatings to increase the adhesion of the coatings to the substrate. Thermochromic coatings were synthesized by reacting polyvinylpyrrolidone in aqueous solution with tetraethoxysilane. The structural and thermochromic performance of coatings prepared with the sol-gel dip-coating method was systematically characterized and its functionality was determined. In this study, the effects of the addition of titanium (IV) oxide on the phase composition, transition temperature, and surface morphology of the coatings were investigated. The result obtained showed that the formed anatase phase increased as the titanium (IV) oxide content increased. Exothermic and endothermic transition temperatures for the undoped sample ranged from 34.6 °C to 26.5 °C, while 3 g titanium (IV) oxide doped sample these temperatures varied from 34.6 °C to 26.7 °C. Smooth surface coatings were prepared using polyethylene glycol. The results demonstrated that the colors of the obtained thermochromic coatings could be reversibly changed between green and white.

中文翻译：

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获得石英薄片表面的热致变色性能和功能化

摘要 本研究的目的是通过溶胶-凝胶技术涂覆石英薄片来获得功能特征。智能功能材料是通过在涂料中加入微囊化热致变色颜料而开发的。使用具有不同比例添加物的锐钛矿粉末氧化钛 (IV)，通过浸涂技术将涂层涂覆到石英薄片表面。溶胶配方是使用初始前体四乙氧基硅烷 (TEOS) 和 3-氨基丙基三乙氧基硅烷 (APTES) 制成的。将四乙氧基硅烷添加到涂层的结构中以增加涂层对基材的附着力。热致变色涂层是通过聚乙烯吡咯烷酮在水溶液中与四乙氧基硅烷反应合成的。系统地表征了溶胶-凝胶浸涂法制备的涂层的结构和热致变色性能，并确定了其功能。在这项研究中，研究了添加氧化钛 (IV) 对涂层的相组成、转变温度和表面形貌的影响。所得结果表明，随着钛(IV)氧化物含量的增加，形成的锐钛矿相增加。未掺杂样品的放热和吸热转变温度范围为 34.6 °C 至 26.5 °C，而 3 g 钛 (IV) 氧化物掺杂样品的这些温度范围为 34.6 °C 至 26.7 °C。使用聚乙二醇制备光滑表面涂层。结果表明，所得热致变色涂层的颜色可以在绿色和白色之间可逆地变化。