Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Surface anti-scouring aerogel composite material and preparation method thereof
The invention discloses a surface anti-scouring aerogel composite material and a preparation method thereof, and relates to the field of thermal insulation materials. The preparation method comprises the following steps: firstly, preparing a fiber preform with gradient density of a sandwich structure, then carrying out dipping compounding on a sol precursor and the fiber preform, carrying out sol-gel and gel aging, demolding and normal-pressure drying to obtain a fiber-reinforced aerogel composite material, then carrying out polishing, purging and surface hydrophilization treatment, preparing a densified coating on the surface, and carrying out drying to obtain the fiber-reinforced aerogel composite material. And finally, carrying out polishing, purging and surface hydrophobization treatment to obtain the aerogel composite material with the anti-scouring surface. The surface anti-scouring capability, the surface densification degree, the panel tensile strength, the heat insulation performance and the like of the aerogel composite material can be improved.
本发明公开了一种表面抗冲刷的气凝胶复合材料及其制备方法，涉及防隔热材料领域。本发明首先制备三明治结构梯度密度的纤维预制体，再进行溶胶前驱体与纤维预制体的浸渍复合，经过溶胶凝胶及凝胶老化、脱模、常压干燥得到纤维增强的气凝胶复合材料，再经过打磨吹扫和表面亲水化处理后，在表面制备致密化涂层，最后经过打磨吹扫和表面疏水化处理，得到表面抗冲刷的气凝胶复合材料。本发明能够提高气凝胶复合材料的表面抗冲刷能力、表面致密化程度、面板拉伸强度以及隔热性能等。
Surface anti-scouring aerogel composite material and preparation method thereof
The invention discloses a surface anti-scouring aerogel composite material and a preparation method thereof, and relates to the field of thermal insulation materials. The preparation method comprises the following steps: firstly, preparing a fiber preform with gradient density of a sandwich structure, then carrying out dipping compounding on a sol precursor and the fiber preform, carrying out sol-gel and gel aging, demolding and normal-pressure drying to obtain a fiber-reinforced aerogel composite material, then carrying out polishing, purging and surface hydrophilization treatment, preparing a densified coating on the surface, and carrying out drying to obtain the fiber-reinforced aerogel composite material. And finally, carrying out polishing, purging and surface hydrophobization treatment to obtain the aerogel composite material with the anti-scouring surface. The surface anti-scouring capability, the surface densification degree, the panel tensile strength, the heat insulation performance and the like of the aerogel composite material can be improved.
本发明公开了一种表面抗冲刷的气凝胶复合材料及其制备方法，涉及防隔热材料领域。本发明首先制备三明治结构梯度密度的纤维预制体，再进行溶胶前驱体与纤维预制体的浸渍复合，经过溶胶凝胶及凝胶老化、脱模、常压干燥得到纤维增强的气凝胶复合材料，再经过打磨吹扫和表面亲水化处理后，在表面制备致密化涂层，最后经过打磨吹扫和表面疏水化处理，得到表面抗冲刷的气凝胶复合材料。本发明能够提高气凝胶复合材料的表面抗冲刷能力、表面致密化程度、面板拉伸强度以及隔热性能等。
Surface anti-scouring aerogel composite material and preparation method thereof
一种表面抗冲刷的气凝胶复合材料及其制备方法
SHENG JINHUA (Autor:in) / LEI CHAOSHUAI (Autor:in) / SONG HAN (Autor:in) / LI ZIAN (Autor:in) / LI JIANGUO (Autor:in) / MENG QINGFAN (Autor:in) / LIU XIAOBO (Autor:in) / ZHOU YUGUI (Autor:in) / LI WENJING (Autor:in) / LIU JIN (Autor:in)
05.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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