工程科学学报2016，Vol.38Issue(2)：270-275,6.DOI:10.13374/j.issn2095-9389.2016.02.017
介孔SBA-15/SiO2气凝胶硅-硅复合材料的制备和性能
Preparation and properties of a mesoporous SBA--15/silica composited aerogel
摘要
Abstract
A mesoporous SBA-15/silica composited aerogel was prepared by a two-step acid-alkali method with SBA-15 as an additive. The effects of the amount of SBA-15 on the formation process and the performance of the composited aerogel were investiga-ted. The microstructure of the composited aerogel was characterized by scanning electron microscopy and N2 adsorption- desorption isotherms, and the mechanical properties and thermal conductivity were tested. It is found that as a small amount of SBA-15 is added, the gelation time of silica greatly shortens, the mechanical properties improves, the thermal conductivity still keeps small, while the specific surface area slightly decreases.关键词
气凝胶/二氧化硅/介孔材料/制备方法/力学性能/热导率Key words
aerogels/silica/mesoporous materials/preparation methods/mechanical properties/thermal conductivity分类
化学化工引用本文复制引用
彭超豪,杨穆,栾奕,金召奎,谭僖..介孔SBA-15/SiO2气凝胶硅-硅复合材料的制备和性能[J].工程科学学报,2016,38(2):270-275,6.基金项目
国家科技支撑计划资助项目(2013BAJ01B03),中央高校基本科研业务费资助项目(FRF-SD-12-004B) （2013BAJ01B03）
