气凝胶是由纳米量级超细微粒或高聚物分子构成的多孔性固态材料［１，２］，其杨氏模量、声传播速率、折射率、热导率和电导率等均与其宏观密度成标度关系．它拥有反常输运特性、动力学性质和低温热学性质，因此受到多方面研究者的重视［３７］，目前应用溶胶凝胶法和超... Airgel is a porous solid material composed of nano-scale ultrafine particles or polymer molecules [1,2], its Young’s modulus, acoustic propagation velocity, refractive index, thermal conductivity and electrical conductivity are the same as Macro density into scale relationship. It has anomalous transport properties, kinetic properties and low-temperature thermal properties, so many researchers have taken [37], the current application of sol-gel method and super ...