脱硫石膏基轻质保温材料的制备和性能研究  

Study of Preparation and Performance of Gypsum-based Light Thermal Insulation Material

作　　者：陈勇[1] 蒋青青[2] 张毅[1] 李东旭[1] 

机构地区：[1]南京工业大学材料科学与工程学院,南京210009 [2]江苏尼高科技有限公司,常州213015

出　　处：《材料导报》2014年第8期135-138,147,共5页Materials Reports

基　　金："十二五"国家科技支撑计划课题(2011BAE14B06);江苏省新型环保重点实验室开放课题(AE201007)

摘　　要：以建筑脱硫石膏为原料,分别通过物理发泡和化学发泡两种方式制备发泡石膏制品。通过测定石膏制品的抗压强度、导热系数、干密度等性能指标,评定发泡石膏工艺。结果表明,采用物理发泡法时,影响制品因素主次顺序为泡沫掺量>水胶比>HPMC掺量;采用化学发泡法制备发泡石膏制品时,发泡剂掺量直接影响发泡脱硫石膏的干密度、强度等性能,水灰比应控制在0.7左右,双氧水发泡剂掺量以6%为宜。The gypsum product was prepared using FGD product by means of physical foaming method and chemical foaming method.Compressive strength,thermal conductivity and bulk density were tested to evaluate the performance of gypsum product.The result shows that when using physical foaming method,among the dosage of foam,W/C and dosage of HPMC,dosage of foam is the most important aspect to the performance,dosage of HPMC influences little.Performance of gypsum product such as the bulk density,strength can be influenced by dosage of foam while using chemical foaming method,the water cement ratio should be 0.7 and the best dosage of foam is 6 ％.

关 键 词：脱硫石膏 物理发泡 化学发泡 

分 类 号：TQ177.3[化学工程—硅酸盐工业]