轻质刚性纳米隔热材料的制备与性能

针对高马赫数飞行器局部位置对刚性隔热材料的迫切需求,开展了轻质刚性纳米孔隔热材料的制备和性能研究。通过纤维分散、模压成型和纳米颗粒复合技术,成功制备出力学性能优良的刚性纳米孔隔热材料。研究了材料组成与力学性能、隔热性能和微观结构的关系。结果表明,采用刚性骨架增强的纳米孔隔热材料是相同密度下纤维毡增强隔热材料压缩强度的两倍;温度越高,隔热材料的压缩强度变化就越大。

Preparation and Performance of Lightweight Rigid Nanoporous Thermal Insulation Material

To meet the need of thermal protection and high strength for high Ma vehicles, lightweight rigid nanoporous thermal insulation material has been prepared by fiber dispersion, molding pressing and nano-particle composite technology. The relationship between material composition and properties of insulating materials was investigated. The results show that the compressive properties of composites strength with rigid tile is twice than with fiber mat. The compressive properties became large with increasing temperature.