Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lightweight heat-proof and heat-insulation integrated ceramic composite material and preparation method thereof
The invention relates to the technical field of ceramic composite materials, and discloses a lightweight heat protection and insulation integrated ceramic composite material and a preparation method thereof.The preparation method comprises the following steps that the thickness of a core layer, the thickness of an upper surface layer, the thickness of a lower surface layer and a material system are designed, and the thickness of the upper surface layer is larger than that of the lower surface layer; preparing a ceramic composite material preform; preparing an aerogel composite material, namely carrying out supercritical drying on the ceramic composite material preform; carrying out hydrophobization treatment on the treated ceramic composite material preform, dipping the ceramic composite material preform in a tetraethoxysilane solution, taking out the ceramic composite material preform, and carrying out high-temperature treatment; clamping the treated ceramic composite material preform by using a mold, dipping in the modified silica sol, then curing, and repeatedly dipping and curing for 3-5 times; and under a vacuum condition, cracking and firing the treated preform, and cooling to room temperature to obtain the lightweight heat-proof and heat-insulation integrated ceramic composite material. The preparation period is shortened, and the preparation efficiency is improved.
本发明涉及陶瓷复合材料技术领域，公开了一种轻质防热隔热一体化陶瓷复合材料及制备方法，包括以下步骤：设计芯层厚度、上表面层厚度和下表面层厚度，以及材料体系，上表面层的厚度大于下表面层的厚度；制备陶瓷复合材料预制体；气凝胶复合材料制备，将陶瓷复合材料预制体采用超临界干燥；将处理后的陶瓷复合材料预制体进行疏水化处理，将陶瓷复合材料预制体浸渍在正硅酸乙酯溶液中，取出后高温处理；将处理后的陶瓷复合材料预制体用模具夹紧，浸渍于改性后的硅溶胶中，然后固化，反复浸渍和固化3～5次；在真空条件下，对处理后的预制体进行裂解烧成，冷却至室温，得到轻质防热隔热一体化陶瓷复合材料。缩短了制备周期，提高了制备效率。
Lightweight heat-proof and heat-insulation integrated ceramic composite material and preparation method thereof
The invention relates to the technical field of ceramic composite materials, and discloses a lightweight heat protection and insulation integrated ceramic composite material and a preparation method thereof.The preparation method comprises the following steps that the thickness of a core layer, the thickness of an upper surface layer, the thickness of a lower surface layer and a material system are designed, and the thickness of the upper surface layer is larger than that of the lower surface layer; preparing a ceramic composite material preform; preparing an aerogel composite material, namely carrying out supercritical drying on the ceramic composite material preform; carrying out hydrophobization treatment on the treated ceramic composite material preform, dipping the ceramic composite material preform in a tetraethoxysilane solution, taking out the ceramic composite material preform, and carrying out high-temperature treatment; clamping the treated ceramic composite material preform by using a mold, dipping in the modified silica sol, then curing, and repeatedly dipping and curing for 3-5 times; and under a vacuum condition, cracking and firing the treated preform, and cooling to room temperature to obtain the lightweight heat-proof and heat-insulation integrated ceramic composite material. The preparation period is shortened, and the preparation efficiency is improved.
本发明涉及陶瓷复合材料技术领域，公开了一种轻质防热隔热一体化陶瓷复合材料及制备方法，包括以下步骤：设计芯层厚度、上表面层厚度和下表面层厚度，以及材料体系，上表面层的厚度大于下表面层的厚度；制备陶瓷复合材料预制体；气凝胶复合材料制备，将陶瓷复合材料预制体采用超临界干燥；将处理后的陶瓷复合材料预制体进行疏水化处理，将陶瓷复合材料预制体浸渍在正硅酸乙酯溶液中，取出后高温处理；将处理后的陶瓷复合材料预制体用模具夹紧，浸渍于改性后的硅溶胶中，然后固化，反复浸渍和固化3～5次；在真空条件下，对处理后的预制体进行裂解烧成，冷却至室温，得到轻质防热隔热一体化陶瓷复合材料。缩短了制备周期，提高了制备效率。
Lightweight heat-proof and heat-insulation integrated ceramic composite material and preparation method thereof
一种轻质防热隔热一体化陶瓷复合材料及制备方法
XIANG YANG (Autor:in) / PENG ZHIHANG (Autor:in) / GUO FEI (Autor:in) / LI LIANGJUN (Autor:in)
19.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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