密封胶在装配式混凝土基材上的粘结性能及界面微观结构的表征  

Adhesion Performance and Interface Microstructure Characterization of Sealant on Prefabricated Concrete Substrates

作　　者：赖振峰[1,2] 王万金[1,2] 朱宁[1,2] 夏义兵[1] 王靖[1,2] 吴敬朋[1] 刘俊元[1] 郭现龙[1] 

机构地区：[1]北京市建筑工程研究院有限责任公司,100039 [2]北京市功能性高分子建筑材料工程技术研究中心,100039

出　　处：《化工设计通讯》2016年第5期71-72,84,共3页Chemical Engineering Design Communications

基　　金：2002.北京市科委课题,课题名称:装配式住宅用耐候密封材料关键技术研究与应用(Z141100000714004)

摘　　要：为进一步提高装配式建筑用密封胶与预制混凝土构件之间的粘结性,防止边缘开裂而密封失效,研究了不同种类的混凝土脱模剂对MSPU-50耐候密封胶与混凝土粘结性的影响。同时研究了MSPU-50密封胶与PU-01底涂剂、混凝土的匹配性。通过扫描电镜(SEM)和能谱(EDX)测试分析,表明MSPU-50密封胶能够良好渗入混凝土内部孔隙,与混凝土具有良好相容性。涂刷PU-01底涂剂后再填充MSPU-50密封胶,几乎完全封闭混凝土表面孔隙,固化后与混凝土接合表面互相咬合和镶嵌,从而产生良好的粘接强度。To further enhance the prefabricated construction adhesive and sealant between the precast concrete to prevent cracking and edge seal failure,we study different types of concrete release agent for MSPU-50 weather sealant and adhesive properties of concrete influences.Also studied MSPU-50 sealant and PU-01 primer,concrete matching.By scanning electron microscopy（SEM）and spectroscopy（EDX）analysis of the test,indicating MSPU-50 good sealant can penetrate inside the pores in concrete,and concrete has good compatibility.Varnish after filling squeegee PU-01 bottom MSPU-50 sealant,almost completely closed surface pores of concrete,with the concrete after curing and mosaic mutually intermeshing engagement surface,resulting in excellent bond strength.

关 键 词：密封胶 底涂剂 混凝土 粘结性 

分 类 号：TQ433.438[化学工程]