Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultrathin glass fiber paper-silicon-aluminum-yttrium aerogel composite material and preparation method thereof
The invention provides an ultrathin glass fiber paper-silicon aluminum yttrium aerogel composite material and a preparation method thereof, and belongs to the field of aerogel composite material preparation processes. The method comprises the following steps: firstly, preparing silicon-aluminum-yttrium aerogel: weighing a silicon source precursor, ethanol, water and an acid catalyst, pouring into a container, and stirring in a water bath to obtain silica sol; the preparation method comprises the following steps: weighing an aluminum source precursor, a yttrium source precursor, ethanol and water, pouring into a container, and stirring in a water bath to obtain Al-Y binary sol; dropwise adding silica sol into the Al-Y binary sol, and continuously stirring to finally form silicon-aluminum-yttrium aerogel; adding a proper amount of epoxypropane into the prepared silicon-aluminum-yttrium aerogel, stirring for a period of time, finally pouring into a mold with ultrathin glass fibers, sealing, standing, and waiting for gelling, so as to obtain the ultrathin glass fiber paper-silicon-aluminum-yttrium aerogel composite material. And finally, carrying out replacement aging and drying. According to the invention, the overall temperature resistance of the material is improved, and the problems of poor mechanical properties and powder falling of the traditional heat insulation material are solved.
本发明提供一种超薄玻璃纤维纸‑硅铝钇气凝胶复合材料及制备方法，属于气凝胶复合材料制备工艺领域。本发明的方法首先制备硅铝钇气凝胶：量取硅源前驱体、乙醇、水和酸催化剂倒入容器中，水浴搅拌得到硅溶胶；称取铝源前驱体、钇源前驱体、乙醇、水倒入容器中，水浴搅拌得到Al‑Y二元溶胶；将硅溶胶滴加到Al‑Y二元溶胶中，继续搅拌，最终形成硅铝钇气凝胶；然后在制得的硅铝钇气凝胶中加入适量的环氧丙烷，搅拌一段时间，最后倒入放有超薄玻璃纤维的模具密封静置，等待凝胶，得到超薄玻璃纤维纸‑硅铝钇气凝胶复合材料；最后进行置换老化和干燥即可。本发明既提高了材料整体的耐温性，又解决了传统隔热保温材料力学性能差、掉粉的问题。
Ultrathin glass fiber paper-silicon-aluminum-yttrium aerogel composite material and preparation method thereof
The invention provides an ultrathin glass fiber paper-silicon aluminum yttrium aerogel composite material and a preparation method thereof, and belongs to the field of aerogel composite material preparation processes. The method comprises the following steps: firstly, preparing silicon-aluminum-yttrium aerogel: weighing a silicon source precursor, ethanol, water and an acid catalyst, pouring into a container, and stirring in a water bath to obtain silica sol; the preparation method comprises the following steps: weighing an aluminum source precursor, a yttrium source precursor, ethanol and water, pouring into a container, and stirring in a water bath to obtain Al-Y binary sol; dropwise adding silica sol into the Al-Y binary sol, and continuously stirring to finally form silicon-aluminum-yttrium aerogel; adding a proper amount of epoxypropane into the prepared silicon-aluminum-yttrium aerogel, stirring for a period of time, finally pouring into a mold with ultrathin glass fibers, sealing, standing, and waiting for gelling, so as to obtain the ultrathin glass fiber paper-silicon-aluminum-yttrium aerogel composite material. And finally, carrying out replacement aging and drying. According to the invention, the overall temperature resistance of the material is improved, and the problems of poor mechanical properties and powder falling of the traditional heat insulation material are solved.
本发明提供一种超薄玻璃纤维纸‑硅铝钇气凝胶复合材料及制备方法，属于气凝胶复合材料制备工艺领域。本发明的方法首先制备硅铝钇气凝胶：量取硅源前驱体、乙醇、水和酸催化剂倒入容器中，水浴搅拌得到硅溶胶；称取铝源前驱体、钇源前驱体、乙醇、水倒入容器中，水浴搅拌得到Al‑Y二元溶胶；将硅溶胶滴加到Al‑Y二元溶胶中，继续搅拌，最终形成硅铝钇气凝胶；然后在制得的硅铝钇气凝胶中加入适量的环氧丙烷，搅拌一段时间，最后倒入放有超薄玻璃纤维的模具密封静置，等待凝胶，得到超薄玻璃纤维纸‑硅铝钇气凝胶复合材料；最后进行置换老化和干燥即可。本发明既提高了材料整体的耐温性，又解决了传统隔热保温材料力学性能差、掉粉的问题。
Ultrathin glass fiber paper-silicon-aluminum-yttrium aerogel composite material and preparation method thereof
一种超薄玻璃纤维纸-硅铝钇气凝胶复合材料及制备方法
YAO NINGQIU (Autor:in) / CUI SHENG (Autor:in) / WANG JIE (Autor:in) / SU CONGXUAN (Autor:in) / SHI LINGYAN (Autor:in) / ZHANG CHAOQUN (Autor:in)
07.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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