欢迎访问《金属矿山》杂志官方网站,今天是 分享到:

金属矿山 ›› 2016, Vol. 45 ›› Issue (10): 193-196.

• 综合利用 • 上一篇    

偏高岭土制备外墙保温材料试验

赵英良1,邢军1,刘辉2,邱景平1,孙晓刚1,胡世强1   

  1. 1.东北大学资源与土木工程学院,辽宁 沈阳 110819;2.招金矿业股份有限公司蚕庄金矿,山东 招远 265400
  • 出版日期:2016-10-15 发布日期:2016-11-04
  • 基金资助:

    基金项目:“十二五”国家科技支撑计划(编号:2012BAJ17B01,2012BAJ17B02)。

Experiment on Preparation of Exterior Thermal Insulation Materials Using Metakaolin

Zhao Yingliang1,Xing Jun1,Liu Hui2,Qiu Jingping1,Sun Xiaogang1,Hu Shiqiang1   

  1. 1.College of Resources and Civil Engineering,Northeastern University,Shenyang 110819,China;2.Canzhuang Gold Mine,Zhaojin Mining Industry Co.,Ltd.,Zhaoyuan 265400,China
  • Online:2016-10-15 Published:2016-11-04

摘要: 市场上现有无机保温材料导热系数低、保温性能差,为此,以偏高岭土为主要原料、水玻璃为碱激发剂、双氧水为发泡剂,通过聚合反应制备新型外墙保温材料,考察水玻璃用量、发泡剂用量和养护温度对保温材料密度、抗压强度和导热系数的影响。结果表明:当水玻璃与偏高岭土质量比为1.0、双氧水用量为偏高岭土质量的2%、养护温度为60 ℃时,获得的保温材料导热系数为0.115 W/(m·℃)、密度为356 kg/m3、抗压强度为0.821 MPa。试验结果可以为偏高岭土制备外墙保温材料工艺提供技术支持。

关键词: 保温材料, 偏高岭土, 聚合反应

Abstract: Existing inorganic thermal insulation materials in market has low thermal conductivity,heat preservation performance is poor,therefore,using metakaolin as the main raw material,sodium silicate as alkali excitation agent,aquae hydrogenii dioxidi as foaming agent,through polymerization preparation new exterior wall thermal insulation material.Influence of dosage of sodium silicate,dosage of foaming agent and curing temperature on the thermal insulation material density,compressive strength and coefficient of thermal conductivity were investigated.Results show that when mass ratio of sodium silicate to metakaolin is 1.0,aquae hydrogenii dioxidi dosage of 2% mass of metakaolin,curing temperature was 60 ℃,the thermal insulation materials coefficient of thermal conductivity is 0.115 W/(m ℃),density of 356 kg/m3,the compressive strength of 0.821 MPa.Experimental results can provide technical support for preparation of exterior wall thermal insulation material using metakaolin.

Key words: Thermal insulation material, Metakaolin, Geopolymerization