Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature-resistant and high-flame-retardant silicon-aluminum aerogel composite material and preparation method thereof
The invention relates to the technical field of aerogel materials, in particular to a high-temperature-resistant and high-flame-retardant silicon-aluminum aerogel composite material and a preparation method thereof. The preparation method of the composite material comprises the following steps: step 1, mixing aluminum dihydrogen phosphate, water, alcohol and a stabilizer, stirring until an aluminum source is completely hydrolyzed to obtain aluminum sol, and then dropwise adding a silicon source into the obtained aluminum sol to prepare silicon-aluminum sol; 2, compounding a fiber base material with the silicon-aluminum sol obtained in the step 1, and gelling to prepare a silicon-aluminum gel-fiber base material composite material; step 3, carrying out aging and solvent replacement on the silica-alumina gel-fiber base material composite material obtained in the step 2; 4, the silicon-aluminum gel-fiber base material composite material obtained after solvent replacement in the step 3 is dried, the high-temperature-resistant and high-flame-retardant silicon-aluminum aerogel composite material is obtained, and the finally prepared silicon-aluminum aerogel composite material has good high-temperature heat insulation performance, high-temperature flame retardant performance and high-temperature stability.
本发明涉及气凝胶材料技术领域，具体涉及一种耐高温、高阻燃性能的硅‑铝气凝胶复合材料及其制备方法。该复合材料的制备方法包括：步骤1、将磷酸二氢铝、水、醇、稳定剂混合，搅拌至铝源完全水解得到铝溶胶，然后向所得铝溶胶中滴加硅源，制备硅‑铝溶胶；步骤2、将纤维基材与步骤1中所得硅‑铝溶胶复合后凝胶，制得硅铝凝胶‑纤维基材复合材料；步骤3、将步骤2所得硅铝凝胶‑纤维基材复合材料进行老化及溶剂置换；步骤4、将步骤3中溶剂置换后所得硅铝凝胶‑纤维基材复合材料干燥，得到耐高温、高阻燃性能的硅‑铝气凝胶复合材料，最终制备的硅铝气凝胶复合材料具有较好的高温隔热性能、高温阻燃性能和高温稳定性。
High-temperature-resistant and high-flame-retardant silicon-aluminum aerogel composite material and preparation method thereof
The invention relates to the technical field of aerogel materials, in particular to a high-temperature-resistant and high-flame-retardant silicon-aluminum aerogel composite material and a preparation method thereof. The preparation method of the composite material comprises the following steps: step 1, mixing aluminum dihydrogen phosphate, water, alcohol and a stabilizer, stirring until an aluminum source is completely hydrolyzed to obtain aluminum sol, and then dropwise adding a silicon source into the obtained aluminum sol to prepare silicon-aluminum sol; 2, compounding a fiber base material with the silicon-aluminum sol obtained in the step 1, and gelling to prepare a silicon-aluminum gel-fiber base material composite material; step 3, carrying out aging and solvent replacement on the silica-alumina gel-fiber base material composite material obtained in the step 2; 4, the silicon-aluminum gel-fiber base material composite material obtained after solvent replacement in the step 3 is dried, the high-temperature-resistant and high-flame-retardant silicon-aluminum aerogel composite material is obtained, and the finally prepared silicon-aluminum aerogel composite material has good high-temperature heat insulation performance, high-temperature flame retardant performance and high-temperature stability.
本发明涉及气凝胶材料技术领域，具体涉及一种耐高温、高阻燃性能的硅‑铝气凝胶复合材料及其制备方法。该复合材料的制备方法包括：步骤1、将磷酸二氢铝、水、醇、稳定剂混合，搅拌至铝源完全水解得到铝溶胶，然后向所得铝溶胶中滴加硅源，制备硅‑铝溶胶；步骤2、将纤维基材与步骤1中所得硅‑铝溶胶复合后凝胶，制得硅铝凝胶‑纤维基材复合材料；步骤3、将步骤2所得硅铝凝胶‑纤维基材复合材料进行老化及溶剂置换；步骤4、将步骤3中溶剂置换后所得硅铝凝胶‑纤维基材复合材料干燥，得到耐高温、高阻燃性能的硅‑铝气凝胶复合材料，最终制备的硅铝气凝胶复合材料具有较好的高温隔热性能、高温阻燃性能和高温稳定性。
High-temperature-resistant and high-flame-retardant silicon-aluminum aerogel composite material and preparation method thereof
一种耐高温、高阻燃性能的硅-铝气凝胶复合材料及其制备方法
HE RUI (Autor:in) / SUN GANG (Autor:in) / ZHENG KE (Autor:in) / ZHANG XIN (Autor:in) / WU JIANYUN (Autor:in) / LIU TIANSHI (Autor:in) / ZHAN LU (Autor:in) / XIE XIANZHOU (Autor:in)
06.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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