二氧化硅气凝胶制备建筑保温隔热材料  

Preparation of thermal insulation block using in building by silica aerogel

作　　者：张明灿[1] 

机构地区：[1]福建省建筑科学研究院福建省绿色建筑技术重点实验室,福建晋江362200

出　　处：《中国建材科技》2012年第5期31-34,共4页China Building Materials Science & Technology

摘　　要：以国产二氧化硅气凝胶为基体材料,E玻纤为支撑骨架,添加白色硅酸盐水泥为粘结剂,掺少量的矿粉降低水化热,制备出低热导率的建筑保温隔热材料;分别测样品的压缩强度M、常温常压热导率λ和体积电阻率ρ。结果表明:经过600℃处理0.5h的样品,密度D为230kg.m-3,M值为2.00MPa,λ值为0.052Wm-1K-1,ρ值为1.61×1011Ω.cm。本研究对性价比高的二氧化硅气凝胶建筑保温隔热材料产业化具有现实的意义。A thermal insulation block of lower thermal conductivity used in building was prepared by silica aerogel.Silica aerogel made in china was used as a matrix,E-glass fiber as a framework,the white Portland cement clinker as a binder,mineral powder as a admixture to decrease hydration heat.Compressive strength（M）,thermal conductivity（λ） and volume resistivity（ρ） were measured,respectively.Results show the sample heated at 600℃ for 0.5h has a lower density（D） of 230kg·m-3,the R value 2.00Mpa,the λ value 0.052 Wm-1K-1,the ρ value1.61×1011Ω·cm.This research has good industrialization prospects owing to its high performance-price ratio about thermal insulation block which was prepared by silica aerogel and used in building.

关 键 词：二氧化硅气凝胶 E玻纤 白色硅酸盐水泥 矿粉 

分 类 号：TB321[一般工业技术—材料科学与工程]