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首页> 外文期刊>JCT research >Characterization of titanium alkoxide sol-gel systems designed for anti-icing coatings: I. Chemistry
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Characterization of titanium alkoxide sol-gel systems designed for anti-icing coatings: I. Chemistry

机译：用于防冰涂料的烷氧基钛溶胶-凝胶体系的表征：I.化学

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摘要

Recent interest in sol-gel chemistry involving titanium alkoxide precursors has been prompted by the ability to control the morphology of the final TiO_2 structure. The ligands used in these processes are typically sacrificial and are removed once the process is complete. In contrast, the sol-gel chemistry presented here is used to facilitate the slow release of the attached alkoxide ligands: tripropylene glycol (TPG) and glycerol. These compounds are first chemically reacted with titanium isopropoxide (TIP), then are slowly released through subsequent hydrolysis and condensation reactions. TPG and glycerol depress the freezing point of water and this sol-gel chemistry has been incorporated into a coating which has anti-icing properties. This article analyzes the precursor chemistry for various experimental conditions using TGA, FTIR, ~1H NMR, and model calculations.
机译：控制最终TiO_2结构形态的能力促使人们对涉及烷氧基钛前体的溶胶-凝胶化学产生了新的兴趣。这些过程中使用的配体通常是牺牲性的，一旦过程完成就将其除去。相反，此处介绍的溶胶-凝胶化学用于促进缓慢释放附着的醇盐配体：三丙二醇（TPG）和甘油。这些化合物首先与异丙醇钛（TIP）化学反应，然后通过随后的水解和缩合反应缓慢释放。 TPG和甘油降低了水的凝固点，这种溶胶-凝胶化学物质已被并入具有防冰性能的涂料中。本文使用TGA，FTIR，〜1H NMR和模型计算分析了各种实验条件下的前体化学性质。

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