Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fiber composite aerogel material as well as preparation method and application thereof
The invention relates to a fiber composite aerogel material as well as a preparation method and application thereof. The preparation method of the fiber composite aerogel material comprises the following steps: hydrolyzing part of a silicon source to prepare a silicon hydrolysate, mixing the silicon hydrolysate with a polymer, and carrying out electrostatic spinning to prepare a nanofiber membrane; thermally treating the nanofiber membrane to remove the polymer; mixing the remaining silicon source with water and an alcohol solvent to prepare silica sol; soaking the nanofiber membrane subjected to heat treatment in silica sol, and mixing under a negative pressure condition to prepare nanofiber sol; and carrying out gel aging treatment on the nanofiber sol, and then drying to prepare the fiber composite aerogel material. According to the preparation method of the fiber composite aerogel material, the thermal insulation property and the flexibility of the fiber composite aerogel material can be improved at the same time, and powder does not fall off.
本发明涉及一种纤维复合气凝胶材料及其制备方法和应用。上述纤维复合气凝胶材料的制备方法包括如下步骤：使部分硅源水解，制备硅水解液，将硅水解液与聚合物混合，进行静电纺丝，制备纳米纤维膜；将纳米纤维膜进行热处理以除去聚合物；将剩余的硅源与水和醇类溶剂混合，制备硅溶胶；将热处理后的纳米纤维膜浸渍在硅溶胶中，在负压条件下混合，制备纳米纤维溶胶；将纳米纤维溶胶进行凝胶老化处理，然后干燥，制备纤维复合气凝胶材料。上述纤维复合气凝胶材料的制备方法能够同时提高纤维复合气凝胶材料的保温性能、柔韧性且不掉粉。
Fiber composite aerogel material as well as preparation method and application thereof
The invention relates to a fiber composite aerogel material as well as a preparation method and application thereof. The preparation method of the fiber composite aerogel material comprises the following steps: hydrolyzing part of a silicon source to prepare a silicon hydrolysate, mixing the silicon hydrolysate with a polymer, and carrying out electrostatic spinning to prepare a nanofiber membrane; thermally treating the nanofiber membrane to remove the polymer; mixing the remaining silicon source with water and an alcohol solvent to prepare silica sol; soaking the nanofiber membrane subjected to heat treatment in silica sol, and mixing under a negative pressure condition to prepare nanofiber sol; and carrying out gel aging treatment on the nanofiber sol, and then drying to prepare the fiber composite aerogel material. According to the preparation method of the fiber composite aerogel material, the thermal insulation property and the flexibility of the fiber composite aerogel material can be improved at the same time, and powder does not fall off.
本发明涉及一种纤维复合气凝胶材料及其制备方法和应用。上述纤维复合气凝胶材料的制备方法包括如下步骤：使部分硅源水解，制备硅水解液，将硅水解液与聚合物混合，进行静电纺丝，制备纳米纤维膜；将纳米纤维膜进行热处理以除去聚合物；将剩余的硅源与水和醇类溶剂混合，制备硅溶胶；将热处理后的纳米纤维膜浸渍在硅溶胶中，在负压条件下混合，制备纳米纤维溶胶；将纳米纤维溶胶进行凝胶老化处理，然后干燥，制备纤维复合气凝胶材料。上述纤维复合气凝胶材料的制备方法能够同时提高纤维复合气凝胶材料的保温性能、柔韧性且不掉粉。
Fiber composite aerogel material as well as preparation method and application thereof
纤维复合气凝胶材料及其制备方法和应用
LIN JIMING (Autor:in) / ZHAO YUAN (Autor:in) / QIU RUOXIANG (Autor:in) / WEI HUANYI (Autor:in) / ZENG XIAN (Autor:in) / ZOU QING (Autor:in) / DUAN CHENGJIE (Autor:in)
16.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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