一种新型发泡保温材料的制备研究  

Study on the preparation of a new foam heat insulating materials

作　　者：练国峰[1] 阮文娟[1] 金江[1] 张华[1] 

机构地区：[1]南京工业大学材料科学与工程学院,南京210009

出　　处：《化工新型材料》2012年第11期20-22,共3页New Chemical Materials

基　　金：江苏高校优势学科建设工程资助项目

摘　　要：以水玻璃为主要原料,硅酸铝纤维和绿色碳化硅为添加剂,通过微波加热的方法制得轻质发泡材料;再经过酸浸改性提高材料的耐温性,制备出一种新型轻质保温材料。实验结果表明,水玻璃中加入1.3%的硅酸铝纤维和7.5%的碳化硅制备出的保温材料具有优异的性能,该材料密度仅为0.161g/cm3,800℃下导热系数仅为0.113w/(m.k)。The new type of lightweight heat insulating material was prepared by microwave heating method,using the sodium silicate as raw material,aluminum silicate fiber and SiC as additives.Improved the spalling resistance of the material by acid leaching method.The results showed that sodium silicate were added 1.3% aluminum silicate fiber and 7.5% SiC,the material had excellent performance,the density of material was only 0.161g/cm3,thermal conductivity coefficient was 0.113w/（m · k）at 800℃

关 键 词：微波加热 轻质 水玻璃 保温材料 

分 类 号：TU551[建筑科学—建筑技术科学]