Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel method for preparing quartz/quartz composite material from polysiloxane
The invention belongs to the technical field of inorganic materials, and particularly relates to a method for preparing a SiO2f/SiO2 composite material from novel polysiloxane. Silica sol with the concentration of 20%, BN nanometer powder and silicon dioxide precursor-polysiloxane prepared in a laboratory are used as impregnation liquid, a quartz fiber reinforced quartz ceramic preform is immersed in the impregnation liquid, the preform and the impregnation liquid are placed into a vacuum drying oven together for curing after vacuum treatment, sintering is conducted after curing is completed, and the composite material is obtained. The preparation method is green, environment-friendly, scientific, reasonable, simple and easy to implement, convenient to implement, short in test period and low in cost, and the density and bending strength of the material are remarkably improved.
本发明属于无机材料技术领域，具体涉及一种新型聚硅氧烷制备SiO2f/SiO2复合材料的方法。使用浓度为20%的硅溶胶和BN纳米粉和实验室自制的二氧化硅先驱体—聚硅氧烷作为浸渍液，把石英纤维增强石英陶瓷预制体浸入浸渍液中，真空处理后将预制体和浸渍液一同置入真空干燥箱内进行固化，固化完成后烧结即得复合材料。本发明制备方法绿色环保、科学合理，简单易行，便于实施，试验周期短、成本低，显著提高了材料的密度和弯曲强度。
Novel method for preparing quartz/quartz composite material from polysiloxane
The invention belongs to the technical field of inorganic materials, and particularly relates to a method for preparing a SiO2f/SiO2 composite material from novel polysiloxane. Silica sol with the concentration of 20%, BN nanometer powder and silicon dioxide precursor-polysiloxane prepared in a laboratory are used as impregnation liquid, a quartz fiber reinforced quartz ceramic preform is immersed in the impregnation liquid, the preform and the impregnation liquid are placed into a vacuum drying oven together for curing after vacuum treatment, sintering is conducted after curing is completed, and the composite material is obtained. The preparation method is green, environment-friendly, scientific, reasonable, simple and easy to implement, convenient to implement, short in test period and low in cost, and the density and bending strength of the material are remarkably improved.
本发明属于无机材料技术领域，具体涉及一种新型聚硅氧烷制备SiO2f/SiO2复合材料的方法。使用浓度为20%的硅溶胶和BN纳米粉和实验室自制的二氧化硅先驱体—聚硅氧烷作为浸渍液，把石英纤维增强石英陶瓷预制体浸入浸渍液中，真空处理后将预制体和浸渍液一同置入真空干燥箱内进行固化，固化完成后烧结即得复合材料。本发明制备方法绿色环保、科学合理，简单易行，便于实施，试验周期短、成本低，显著提高了材料的密度和弯曲强度。
Novel method for preparing quartz/quartz composite material from polysiloxane
一种新型聚硅氧烷制备石英/石英复合材料的方法
WEN GUANGWU (Autor:in) / HOU YONGZHAO (Autor:in) / CHEN YANG (Autor:in)
28.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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