气凝胶的绝热特性及应用进展  

Progress on adiabatic characteristics and application of aerogel

作　　者：刘超[1] 张颖 朱照琪[1] 孙寒雪[1] 魏慧娟[1] 李安 Liu Chao;Zhang Ying;Zhu Zhaoqi;Sun Hanxue;Wei Huijuan;Li An(College of Petrochemical Technology,Lanzhou University of Technology,Lanzhou 730050)

机构地区：[1]兰州理工大学石油化工学院

出　　处：《化工新型材料》2019年第11期241-244,共4页New Chemical Materials

基　　金：国家自然科学基金项目(51663012,51462021)

摘　　要：纳米材料是由粒径1~100nm超微粒子凝聚而成的块状、薄膜状和多层膜状的一类新型材料,近年来被广泛研究和使用。气凝胶是具有大比表面积、低密度、低热导率、高孔隙率的一种新型纳米绝热材料。介绍了气凝胶的种类、性能以及在建筑绝热领域的特性,指出生产质量更轻、成本更低、工艺更简单、吸附性更强的气凝胶是未来主要的研究方向。Nanomaterials are a new type of block-like,film-like and multi-layered film which is formed by the aggregation of ultrafine particles with a particle size of 1 nm to 100 nm. It has been widely studied and used in recent years.Aerogel is a new type of nano-insulation material with large specific surface area,low density,low thermal conductivity and high porosity. The types and properties of aerogels and their characteristics in the field of building insulation were mainly introduced. It was pointed out that aerogels with lighter production quality,lower cost,simpler process and stronger adsorption were the main research directions of scientists in the future.

关 键 词：纳米材料 气凝胶 低热导率 高孔隙率 建筑领域 

分 类 号：TB3[一般工业技术—材料科学与工程]