摘要
以粉煤灰漂珠、硅灰为主要原料 ,采用溶胶—凝胶工艺制备的HG型复合绝热材料最高使用温度1000℃ ,平均温度632.7℃时导热系数为0.03558W/(m·K),耐水性好。文中对硅酸凝胶制备中溶液的pH值、硅灰加入量。
The HG model compound thermal insulation material which uses fly ash pearl and volatilized silica as main raw material and sol-gel process,has max.using temperature of 1000 ℃,heat conductivity of 0.03558 W/(m·K) at average temperature of 632.7 ℃ and good resistance to water .The influence factors to microstructure of the material,such as solusion pH value,adding quantity of volatilized silica,gel ageing and draft filtering time during preparation of silicate gel have been analyzed in this paper.
出处
《新型建筑材料》
北大核心
2001年第10期27-28,共2页
New Building Materials
关键词
绝热材料
溶胶
凝胶工艺
微观结构
耐水性
thermal insulation material,sol-gel process,process parameter
