Aerogel product and preparation method and preparation system thereof

The invention relates to an aerogel product as well as a preparation method and a preparation system thereof. The preparation method comprises the following steps: mixing 92vol%-97vol% of an ethanol water solution and tetraethoxysilane hydrolysate according to a mass ratio of (200-400): (30-80), and...

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Bibliographische Detailangaben
Hauptverfasser: FENG WEIQIANG, RAO LIANGBO, CHEN XIANG, TAN TANGHANG, YUAN BING, ZHAO ZHENZHEN, ZHANG QIUHUA, WEI RONGHUI
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention relates to an aerogel product as well as a preparation method and a preparation system thereof. The preparation method comprises the following steps: mixing 92vol%-97vol% of an ethanol water solution and tetraethoxysilane hydrolysate according to a mass ratio of (200-400): (30-80), and sequentially adding an acidic catalyst and a basic catalyst to prepare a glue solution; performing water bath aging treatment on the glue solution to prepare wet gel; and carrying out drying treatment on the wet gel. According to the preparation method, the raw material cost of the aerogel product can be reduced, the waste of the raw materials is reduced, and the prepared aerogel product can meet the national standard. 本申请涉及一种气凝胶产品及其制备方法和制备系统。该制备方法包括如下步骤:将92vol%~97vol%的乙醇水溶液和四乙氧基硅烷水解物按质量比(200~400):(30~80)混合,依次加入酸性催化剂和碱性催化剂,制备胶液;对胶液进行水浴老化处理,制备湿凝胶;以及对湿凝胶进行干燥处理。上述制备方法能够降低气凝胶产品的原料成本,减少原料的浪费,并且制得的气凝胶产品能够满足国家标准。