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钼矿尾矿制备低导热系数保温陶瓷板
作者:    卢庆阳 
单位:(咸阳陶瓷研究设计院有限公司 陕西 咸阳 712000) 
关键词:钼矿尾矿 导热系数 保温陶瓷板 发泡剂 
分类号:TQ174.76
出版年,卷(期):页码:2020,48(3):0-0
DOI:
摘要:

 以钼矿尾矿为主要原料(55%),结合高岭土、红泥、长石、玻璃粉及发泡剂,烧结制备了保温陶瓷板,并对其进行了表面装饰。测定了保温陶瓷板的吸水率、体积密度、抗压强度、导热系数,观测了其显微结构并对气孔孔径进行了统计。研究了烧成温度、泥浆细度以及发泡剂添加量对保温陶瓷板的孔径影响规律。结果表明:发泡剂添加量对保温陶瓷板的孔结构、孔径大小及分布影响最为显著,是获得低导热系数保温陶瓷板的关键。钼矿尾矿基隔热保温板固废含量高、隔热保温性能优异且质轻,是一种具有广阔市场前景的新型建筑保温材料。

 The insulating ceramic plate was sintered and surface-decorated using molybdenum tailings as the main raw material (55%) with kaolin, red sludge, feldspar, glass powder and blowing agent incorporated. The water absorption, bulk density, compressive strength and thermal conductivity of the insulating ceramic plate were measured, and the microstructure was observed and the pore diameter was counted. The effects of firing temperature, slurry fineness and addition of blowing agent on the pore size of insulating ceramic plates were studied. The results show that the addition of blowing agent has the most significant influence on the pore structure, pore size and distribution of the insulating ceramic plate, and is the key to obtain low thermal conductivity. In this study, the prepared molybdenum mine tailings-based insulating ceramic plate has high solid content, excellent thermal insulation performance and light weight, and is surely a new building insulation material with broad market prospects.

基金项目:
陕西省“13115”科技创新工程计划(2017ZDXM-SF-106)资助。
作者简介:
参考文献:

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