界面处理方式对沥青改性聚氨酯黏结性能的影响  

Effects of Interfacial Treatment Modes on the Bonding Properties of Asphalt Modified Polyurethane

作　　者：张慧莉[1] 姚汝方[1] 雒望余 

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西杨凌712100 [2]西安市水利建筑勘测设计院,陕西西安710054

出　　处：《建筑材料学报》2009年第3期292-295,301,共5页Journal of Building Materials

基　　金：十一五国家科技支撑计划项目(2006BAD11B03)

摘　　要：就界面处理方式对沥青改性聚氨酯接缝材料和水泥砂浆黏结性能的影响进行了研究.结果表明:涂抹丙酮系列底剂界面的黏结效果最差,而涂抹甲苯系列底剂界面的黏结效果最好;水饱和面干状态下的黏结强度可达到干面黏结强度的80%以上,即沥青改性聚氨酯接缝材料可以用于潮湿带水的界面.扫描电镜分析揭示了不同黏结界面有不同的微观结构.The effects of interracial treatment modes on the bonding properties between asphalt modified polyurethane joint material and cement mortar were investigated. The results presented： （1） the interface painted with acetone series showed the worst bonding properties, while interface painted with toluene series had the best bonding properties; （2） Water saturated interface got 80% bond strength of the dry interface, which means this type of joint material can be used in the interfaces with water. The SEM images revealed that interface treated by different modes had the different microstructures.

关 键 词：沥青改性聚氨酯 接缝材料 界面处理方式 黏结强度 剥离强度 

分 类 号：O631.2[理学—高分子化学] TU528.0[理学—化学]