气凝胶材料的研究进展  

Research Progress of Aerogel Materials

作　　者：方赟 李斌 FANG Yun;LI Bin(China International Marine Containers(Group)Ltd.,Shenzhen 518067,Guangdong Province,China)

机构地区：[1]中国国际海运集装箱(集团)股份有限公司,广东深圳518067

出　　处：《上海塑料》2022年第6期14-20,共7页Shanghai Plastics

摘　　要：介绍了气凝胶材料的技术研究和产业应用的进展。气凝胶是一种具有纳米多孔网络结构、孔隙中充满气态分散介质的固体材料,气凝胶独特的微观结构使其拥有导热系数最低(0.012~0.016 W/(m·K))、密度最低(0.16 mg/cm^(3))、介电常数最低(<1.003)、声阻抗最高(106 kg/(m^(2)·s))、孔洞率最高(>99.9%)等15项固体材料的吉尼斯纪录,在隔热保温、吸附分离、生物医用、光电催化、储能转化、吸声隔音等多个领域广泛应用。The progress of technical research and industrial application of aerogel materials is introduced.Aerogel is a solid material with nano porous network structure and filled with gaseous dispersion medium in the pores.Because of its unique microstructure,aerogel has 15 Guinness records of solid materials,including the lowest thermal conductivity(0.012-0.016 W/(m·K)),the lowest density(0.16 mg/cm 3),the lowest dielectric constant(<1.003),the highest acoustic impedance(106 kg/(m 2·s)),the highest porosity(>99.9%)and other characteristics.It is widely used in thermal insulation,adsorption separation,biomedicine,photocatalysis,energy storage and conversion,sound absorption and sound insulation and other fields.

关 键 词：气凝胶 导热系数 隔热保温 

分 类 号：O648.17[理学—物理化学]