Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mesoporous inorganic fiber composite material as well as preparation method and application thereof
The invention relates to a mesoporous inorganic fiber composite material as well as a preparation method and application thereof, belonging to the technical field of inorganic composite materials. The method comprises the following steps: constructing a nano-structure on the surface of halloysite fiber by adopting a high-temperature treatment technology, enriching surface hydroxyl groups of the halloysite fiber by adopting a hydrothermal treatment method, and compounding a fiber membrane serving as a base material with silicon dioxide aerogel mother liquor to allow the gaps of the fiber membrane to be filled with the silicon aerogel mother liquor; and preparing the compact aerogel composite material by a normal-pressure drying method. According to the preparation method, the mesoporous inorganic fiber composite material as well as a compact and crack-free mesoporous aerogel/fiber membrane composite membrane without volume shrinkage can be obtained by using a normal-pressure drying method, the preparation procedures of the normal-pressure drying method can be simplified, preparation efficiency is greatly improved, cost is saved, and the mesoporous inorganic fiber composite material is expected to be widely applied to the fields of efficient adsorption, nano-catalyst loading, high-temperature gas catalysis and the like.
本发明涉及一种介孔无机纤维复合材料及其制备方法和应用，属于无机复合材料技术领域。该方法采用高温处理的技术在埃洛石纤维表面构造出纳米结构，并采用水热处理的方法丰富其表面羟基，再以此纤维膜为基材，将其与二氧化硅气凝胶母液复合，使硅气凝胶母液填充至纤维膜空隙中；通过常压干燥方法，制备出致密的气凝胶复合材料。该制备方法使用常压干燥法即可获得介孔无机纤维复合材料，无体积收缩、致密无裂纹的介孔气凝胶/纤维膜复合膜，且可简化常压干燥法的制备工序，大幅提升了制备效率，节约了成本，有望在高效吸附、纳米催化剂负载及高温气体催化等领域的广泛应用。
Mesoporous inorganic fiber composite material as well as preparation method and application thereof
The invention relates to a mesoporous inorganic fiber composite material as well as a preparation method and application thereof, belonging to the technical field of inorganic composite materials. The method comprises the following steps: constructing a nano-structure on the surface of halloysite fiber by adopting a high-temperature treatment technology, enriching surface hydroxyl groups of the halloysite fiber by adopting a hydrothermal treatment method, and compounding a fiber membrane serving as a base material with silicon dioxide aerogel mother liquor to allow the gaps of the fiber membrane to be filled with the silicon aerogel mother liquor; and preparing the compact aerogel composite material by a normal-pressure drying method. According to the preparation method, the mesoporous inorganic fiber composite material as well as a compact and crack-free mesoporous aerogel/fiber membrane composite membrane without volume shrinkage can be obtained by using a normal-pressure drying method, the preparation procedures of the normal-pressure drying method can be simplified, preparation efficiency is greatly improved, cost is saved, and the mesoporous inorganic fiber composite material is expected to be widely applied to the fields of efficient adsorption, nano-catalyst loading, high-temperature gas catalysis and the like.
本发明涉及一种介孔无机纤维复合材料及其制备方法和应用，属于无机复合材料技术领域。该方法采用高温处理的技术在埃洛石纤维表面构造出纳米结构，并采用水热处理的方法丰富其表面羟基，再以此纤维膜为基材，将其与二氧化硅气凝胶母液复合，使硅气凝胶母液填充至纤维膜空隙中；通过常压干燥方法，制备出致密的气凝胶复合材料。该制备方法使用常压干燥法即可获得介孔无机纤维复合材料，无体积收缩、致密无裂纹的介孔气凝胶/纤维膜复合膜，且可简化常压干燥法的制备工序，大幅提升了制备效率，节约了成本，有望在高效吸附、纳米催化剂负载及高温气体催化等领域的广泛应用。
Mesoporous inorganic fiber composite material as well as preparation method and application thereof
介孔无机纤维复合材料及其制备方法和应用
LYU DONG (Autor:in) / LIANG CHUJUN (Autor:in) / SHEN YUNWEN (Autor:in) / WU JINGSHEN (Autor:in)
15.02.2022
Patent
Elektronische Ressource
Chinesisch
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