High temperature ceramic thermal insulation material  

作　　者：Lu An Jason N.Armstrong Yong Hu Yulong Huang Zheng Li Donghui Zhao Jesse Sokolow Zipeng Guo Chi Zhou Shenqiang Ren 

机构地区：[1]Department of Mechanical and Aerospace Engineering,University at Buffalo,The State University of New York,Buffalo,NY 14260,USA [2]Unifrax Inc.,Tonawanda,NY 14150,USA [3]Department of Industrial and Systems Engineering,University at Buffalo,The State University of New York,Buffalo,NY 14260,USA [4]RENEW Institute,University at Buffalo,The State University of New York,Buffalo,NY 14260,USA [5]Department of Chemistry,University at Buffalo,The State University of New York,Buffalo,NY 14260,USA

出　　处：《Nano Research》2022年第7期6662-6669,共8页纳米研究（英文版）

基　　金：We gratefully acknowledge support from the U.S.Department of Energy(DOE),Office of Energy Efficiency and Renewable Energy(EERE)under the Building Technology Office(BTO)Award(No.DE-EE0008675).

摘　　要：Flexible and lightweight thermal insulation materials with hierarchical microstructures are ubiquitous in thermal management and protection systems.Ceramic aerogels promise high-temperature thermal insulation but lack mechanical robustness,while the fibrous materials with excellent mechanical elasticity display modest thermal insulation.Here we describe flexible hierarchical superhydrophobic ceramic insulation nanocomposites through the densified architectured hierarchical nanostructures,radiative insulation coating,and interfacial cross-linking among composites.The lightweight flexible ceramic nanocomposites exhibit a density of 0.13 g/cm^(3),high-temperature fire resistance with thermal conductivity of 0.024 W/(m·K),and super-hydrophobicity with the water contact angle of 152°.The mechanical robustness and high-temperature thermal insulation of ceramic nanocomposites,together with its soundproof performance,shed light on the low-cost flexible insulation materials manufacturing with scalability for high-temperature thermal insulation applications under high mechanical loading conditions.

关 键 词：thermal insulation mechanical robustness SUPER-HYDROPHOBICITY NANOCOMPOSITES 

分 类 号：TB3[一般工业技术—材料科学与工程]