溶胶-凝胶法制备干凝胶的干燥技术探讨  

Discussion of Drying Technology of Xerogels Prepared by Sol-Gel Method

作　　者：陈明华[1] 王黔平[1] 

机构地区：[1]河北理工大学,河北唐山063009

出　　处：《陶瓷》2008年第3期31-33,共3页Ceramics

基　　金：河北省引进留学人员经费资助

摘　　要：干凝胶作为一种新型的轻质多孔材料在工业生产中具有广泛的应用。简单介绍了以金属醇盐为原料采用溶胶-凝胶法制备湿凝胶的过程,分析了湿凝胶干燥过程中的破坏凝胶结构的原因,同时探讨了解决问题的途径,最后详细讨论了干凝胶干燥技术,并指出了干凝胶的发展前景。Xerogels are widely used in industry producing as a new low-density and porous material.In this paper,first,process of preparing xerogels by sol-gel method with the original of alkoxide has been introduced shortly,and the reason of the structural damage in drying process has been analysed and the way to solve this problem is also given.Technology of drying xerogel has been discussed in detail,and developing prospect of xerogels is also pointed out at last.

关 键 词：干凝胶 溶胶-凝胶 常压干燥 

分 类 号：TS652[轻工技术与工程] TB383[一般工业技术—材料科学与工程]