装配式建筑外墙防水用改性聚醚密封胶粘接性能研究  

Study on adhesive properties of modified polyether sealant for waterproofing of prefabricated building exterior wall

作　　者：王颖辉 WANG Yinghui(Architecture Zabor University of Shaanxi Province,Xi’an 710068,China)

机构地区：[1]陕西省建筑职工大学,陕西西安710068

出　　处：《粘接》2023年第4期46-49,共4页Adhesion

摘　　要：为了提高装配式建筑外墙的综合性能,将硅烷改性聚醚密封胶作为研究对象,通过对密封胶的固化机理进行分析可知,该密封胶的性能易受原材料含水率的影响,为解决该问题,对密封胶进行高温除水操作。采用性能试验的方式对密封胶的性能进行分析,结果表明:硅烷改性聚醚密封胶的耐候性能较好,在老化试验下仍可维持自身优异的性能。试件的各项指标均可满足装配式外墙拼接缝防水密封胶的指标要求。In order to improve the comprehensive performance of assembled building exterior walls,silane modified polyether sealant was taken as the research object.Through the analysis of curing mechanism of sealant,the performance of the sealant is easily affected by the moisture content of raw materials.In order to solve this problem,high temperature water removal operation was carried out on the sealant.The properties of the sealant were analyzed by performance test.The results show that the silicone modified polyether sealant has good weather resistance and could maintain its excellent properties under aging test.All the indexes of the specimen can meet the indexes of assembled wall joint waterproof sealant.

关 键 词：装配式建筑 外墙拼接缝 防水密封胶 性能测试 

分 类 号：TU745[建筑科学—建筑技术科学] TQ437[化学工程]