水热合成废弃黏土砖为一种新型调湿材料的研究  

作　　者：范宏圆[1] 王德平[1] 

机构地区：[1]同济大学材料科学与工程学院,中国上海201804

出　　处：《科技视界》2016年第7期1-2,22,共3页Science & Technology Vision

摘　　要：为了提高废弃黏土砖回收的利用率和经济效益,通过水热技术将废弃黏土砖合成为了一种新型的调湿材料。研究表明,样品在200℃反应12h下可得到最高抗折强度23MPa;水热合成后样品具有较好的调湿性能,其24小时内放湿量可达150g/m2,吸湿量可达90g/m^2;由样品的微观孔结构分析可知,Tobermorite的生成是样品强度和调湿性能提高的原因。In order to improve the utilizatiun rate and economic benefits for recycling waste clay brick, a novel material humidity self-regulating material was synthetized from waste clay brick by hydrothermal processing. The results showed thai the flexural strength of samples reach maxinmm 23MPa in the hydrothermal condition of 200℃ and 12h. The sample possessed an excellent humidity self-regulating property with the moisture adsorption amount of 150g/m2 and desorption amount of 90g/m2. According to the analysis of pore structure, the formation of tobermorite is attributed to tire improvement of both strength and humidity self-regulating properly.

关 键 词：废弃黏土砖 水热技术 调湿材料 孔结构 

分 类 号：TU59[建筑科学—建筑技术科学]