适用于低温环境的聚氨酯防水粘结材料研究进展  

Research progress on PU waterproof adhesive material suitable for low temperature environment

作　　者：闫瑾 张连振[1] 惠嘉[2] 石艳[3] 吴君[3] 刘宇 Yan Jin;Zhang Lianzhen;Hui Jia;Shi Yan;Wu Jun;Liu Yu(School of Transportation Science and Engineering,Harbin Institute of Technology,Harbin 150090;China Academy of Transport Sciences,Beijing 100029;State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical Technology,Beijing 100029)

机构地区：[1]哈尔滨工业大学交通科学与工程学院,哈尔滨150090 [2]交通运输部科学研究院,北京市100029 [3]北京化工大学化工资源有效利用国家重点实验室,北京100029

出　　处：《化工新型材料》2022年第2期229-233,239,共6页New Chemical Materials

摘　　要：我国北方地区冬季的最低温度可达-40℃以下,传统防水材料存在低温性能较差,易开裂且无法低温施工,聚氨酯防水材料具有高耐候性、固化后可形成完整涂膜防水层,提高了工程抗渗防水能力。主要概述了聚氨酯材料化学反应机理的影响因素、分子结构与性能的关系,可低温使用的聚氨酯防水粘结材料微观和宏观试验方法及结论、施工及适用情况,通过对国内外聚氨酯防水粘结材料研究现状的分析,提出对适用于低温环境的聚氨酯防水粘结材料的展望。The lowest temperature in winter in northern China can reach below -40℃,traditional waterproof materials have poor low-temperature performance, easy to crack and can not be applied at low temperature.Polyurethane(PU) waterproof materials have high weather resistance and can form a complete film waterproof layer after curing, which improves the impermeability and waterproof ability of the project.The influence factors of chemical reaction mechanism of PU,the relationship between molecular structure and properties, the micro and macro test methods and conclusions, construction and application of PU waterproof and bonding materials used at low temperature were summarized.Through the analysis of the research status of PU waterproof and bonding materials at home and abroad, the development of the materials suitable for low temperature environment was put forward.

关 键 词：聚氨酯 低温 反应机理 性能 施工 

分 类 号：U444[建筑科学—桥梁与隧道工程]