可再分散乳胶粉在EPS保温砂浆中的作用机理及性能  

Mechanism and property of re-dispersible emulsion powder in EPS thermal insulation mortar

作　　者：周竹发[1] 王淑梅[1] 寇秀蓉[1] 吴铭敏[1] 

机构地区：[1]苏州大学材料工程学院,江苏苏州215021

出　　处：《新型建筑材料》2007年第10期54-57,共4页New Building Materials

摘　　要：可再分散乳胶粉是EPS颗粒保温砂浆外墙外保温体系中起胶凝作用的主要组分。实验探讨分析了可再分散乳胶粉的特性和在保温浆料中的作用机理,研究了可再分散乳胶粉添加量对保温砂浆抗拉、抗压和抗折强度等的影响及与工作性能的关系。在确定其它组份基础上加入2.5%可再分散乳胶粉时,干密度为232 kg/m3,抗拉、抗压和抗折强度分别为0.33、0.35和0.18 MPa,导热系数为0.059 W(/m.K),具有良好的工作性能。　The re-dispersible emulsion powder is a key component for playing the role of gelation in EPS thermal insulation mortar of external wall insulation system.The characteristic of re-dispersible emulsion powder and its mechanism in EPS thermal insulation mortar were analyzed and discussed by experiments,and the effect of adding amount of re-dispersible emulsion powder on properties of thermal insulation mortar such as tensile,compression and bending strength as well as its relationship with working performance were studied.On the basis of other components are ascertain,adding amount 2.5% re-dispersible emulsion powder,the EPS thermal insulation mortar has good working performance with dry density of 232 kg/m3,adhesive strength of 0.33 MPa,compression strength of 0.35 MPa,bending strength of 0.18 MPa and coefficient of thermal conductivity of 0.059 W/（m·K）.

关 键 词：可再分散乳胶粉 EPS保温砂浆 作用机理 粘结强度 

分 类 号：TQ177.6[化学工程—硅酸盐工业]