Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature-resistant composite component aerogel material and preparation method thereof
The invention relates to a high-temperature-resistant composite component aerogel material and a preparation method thereof. The method comprises the following steps: preparing a nano oxide dispersion liquid; uniformly mixing the oxide dispersion liquid and an adsorbent through high-speed shear stirring and ultrasonic treatment to obtain a mixed solution; placing the solution in a closed container for high-temperature hydrothermal reaction to obtain a semi-solid gel block; the high-temperature-resistant composite component aerogel material is prepared by the following steps: firstly, carrying out low-density silica sol precursor dipping treatment, aging and drying, then carrying out a heat treatment process, then carrying out a chemical vapor deposition process and carrying out high-temperature cracking, thereby obtaining the high-temperature-resistant composite component aerogel material. According to the preparation method, the high-temperature-resistant composite component aerogel material which can resist the temperature exceeding 1600 DEG C and is high in toughness can be obtained.
本发明涉及一种耐高温复合组分气凝胶材料及其制备方法。所述方法为：制备纳米氧化物分散液；将氧化物分散液、吸附剂通过高速剪切搅拌和超声处理混合均匀，得到混合溶液；将上述溶液置于密闭容器中进行高温水热反应，得到半固体状的凝胶块；再进行低密度硅溶胶前驱体浸渍处理、老化及干燥步骤、然后进行热处理过程，随后进行化学气相沉积过程并进行高温裂解，制得耐高温复合组分气凝胶材料。本制备方法可得到一种耐温超过1600℃、高强韧的耐高温复合组分气凝胶材料。
High-temperature-resistant composite component aerogel material and preparation method thereof
The invention relates to a high-temperature-resistant composite component aerogel material and a preparation method thereof. The method comprises the following steps: preparing a nano oxide dispersion liquid; uniformly mixing the oxide dispersion liquid and an adsorbent through high-speed shear stirring and ultrasonic treatment to obtain a mixed solution; placing the solution in a closed container for high-temperature hydrothermal reaction to obtain a semi-solid gel block; the high-temperature-resistant composite component aerogel material is prepared by the following steps: firstly, carrying out low-density silica sol precursor dipping treatment, aging and drying, then carrying out a heat treatment process, then carrying out a chemical vapor deposition process and carrying out high-temperature cracking, thereby obtaining the high-temperature-resistant composite component aerogel material. According to the preparation method, the high-temperature-resistant composite component aerogel material which can resist the temperature exceeding 1600 DEG C and is high in toughness can be obtained.
本发明涉及一种耐高温复合组分气凝胶材料及其制备方法。所述方法为：制备纳米氧化物分散液；将氧化物分散液、吸附剂通过高速剪切搅拌和超声处理混合均匀，得到混合溶液；将上述溶液置于密闭容器中进行高温水热反应，得到半固体状的凝胶块；再进行低密度硅溶胶前驱体浸渍处理、老化及干燥步骤、然后进行热处理过程，随后进行化学气相沉积过程并进行高温裂解，制得耐高温复合组分气凝胶材料。本制备方法可得到一种耐温超过1600℃、高强韧的耐高温复合组分气凝胶材料。
High-temperature-resistant composite component aerogel material and preparation method thereof
一种耐高温复合组分气凝胶材料及其制备方法
LI WENJING (Autor:in) / ZHANG HAO (Autor:in) / ZHANG ENSHUANG (Autor:in) / LIU YUANYUAN (Autor:in) / ZHANG WANLIN (Autor:in)
28.10.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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