SiO2气凝胶常压干燥工艺与隔热应用进展  

Progress of Preparation of Silica Aerogel at Ambient Pressure Drying and Its Application in Thermal Insulation

作　　者：陈晓红[1] 胡子君[2] 宋怀河[1] 王非[1] 

机构地区：[1]北京化工大学,化工资源有效利用国家重点实验室,北京100029 [2]航天材料及工艺研究所先进功能复合材料技术国防科技重点实验室,北京100076

出　　处：《宇航材料工艺》2010年第6期10-15,共6页Aerospace Materials & Technology

基　　金：国家973课题资助(6135302.2.1)

摘　　要：综述了SiO2气凝胶常压制备技术及其复合隔热材料的最新研究进展。着重介绍了提高凝胶网络基架强度、添加干燥控制化学添加剂、表面改性、降低毛细管力等几种SiO2气凝胶常压干燥工艺,并回顾了几种SiO2气凝胶复合隔热材料的应用现状。In this article,the progress of the drying technology at ambient pressure of silica aerogels and of the application of silica aerogel composite as the insulating material were reviewed.Several drying processes of silica aerogel such as improving the strength of gel network framework,adding chemical additives,surface modification,reducing the capillary force and so on are summerized.In addition,the application of silica aerogels composites have been introduced as well.

关 键 词：SIO2气凝胶 常压 干燥工艺 复合隔热材料 应用进展 THERMAL INSULATION Application AMBIENT PRESSURE SILICA 干燥控制化学添加剂 制备技术 应用现状 研究进展 凝胶网络 毛细管力 表面改性 强度 

分 类 号：V25[一般工业技术—材料科学与工程]