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Mullite whisker/fiber synergistically reinforced silicon dioxide aerogel multi-scale composite structure, preparation method and application thereof
The invention discloses a mullite whisker/fiber synergistically reinforced SiO2 aerogel multi-scale composite structure, a preparation method and application thereof. According to the method, a mullite whisker/fiber reinforcement and a SiO2 aerogel are combined through physical and chemical methods, and a multi-scale composite structure with certain resilience, mechanical strength and low heat conductivity coefficient can be prepared through micron and submicron scale synergistic reinforcement. According to the invention, the conditions that single-scale fiber reinforcement has defects and theactual application requirements cannot be met due to poor mechanical properties of pure SiO2 aerogel are avoided, and the preparation conditions of the SiO2 aerogel composite material are reduced.
本发明公开了一种莫来石晶须/纤维协同增强SiO2气凝胶多尺度复合结构及其制备方法和应用，通过物理和化学方法将莫来石晶须/纤维增强体和SiO气凝胶结合，通过微米和亚微米尺度协同增强可以制备出具有一定回弹性能、机械强度和低导热系数的多尺度复合结构。避免了单一尺度纤维增强存在的缺陷、纯SiO气凝胶机械性能不佳无法满足实际应用需求，降低了SiO气凝胶复合材料的制备条件。
Mullite whisker/fiber synergistically reinforced silicon dioxide aerogel multi-scale composite structure, preparation method and application thereof
The invention discloses a mullite whisker/fiber synergistically reinforced SiO2 aerogel multi-scale composite structure, a preparation method and application thereof. According to the method, a mullite whisker/fiber reinforcement and a SiO2 aerogel are combined through physical and chemical methods, and a multi-scale composite structure with certain resilience, mechanical strength and low heat conductivity coefficient can be prepared through micron and submicron scale synergistic reinforcement. According to the invention, the conditions that single-scale fiber reinforcement has defects and theactual application requirements cannot be met due to poor mechanical properties of pure SiO2 aerogel are avoided, and the preparation conditions of the SiO2 aerogel composite material are reduced.
本发明公开了一种莫来石晶须/纤维协同增强SiO2气凝胶多尺度复合结构及其制备方法和应用，通过物理和化学方法将莫来石晶须/纤维增强体和SiO气凝胶结合，通过微米和亚微米尺度协同增强可以制备出具有一定回弹性能、机械强度和低导热系数的多尺度复合结构。避免了单一尺度纤维增强存在的缺陷、纯SiO气凝胶机械性能不佳无法满足实际应用需求，降低了SiO气凝胶复合材料的制备条件。
Mullite whisker/fiber synergistically reinforced silicon dioxide aerogel multi-scale composite structure, preparation method and application thereof
莫来石晶须/纤维协同增强二氧化硅气凝胶多尺度复合结构及其制备方法和应用
HOU FENG (Autor:in) / ZHANG TAO (Autor:in) / YI ZHEHAN (Autor:in) / LIU JIAPENG (Autor:in)
19.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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