适用于低温固化环境的环氧树脂体系的选择  

Selection of Epoxy Resin System for Low Temperature Cure Environment

作　　者：刘琳[1,2] 俞豪[2,3] 

机构地区：[1]先进土木工程材料教育部重点实验室 [2]同济大学材料科学与工程学院,上海201804 [3]上海国际油漆有限公司,上海201206

出　　处：《合成材料老化与应用》2015年第3期42-46,123,共6页Synthetic Materials Aging and Application

摘　　要：环氧固化体系的干燥时间与固化促进剂用量以及固化的环境温度密切相关。随着固化促进剂用量的增加,体系的干燥性能逐步得到提升。本文解析了固化促进剂DMP-30的作用机理并用红外谱图法表征了微观反应过程,并且通过对DMP-30在-15℃到5℃的低温固化条件下对环氧固化体系干燥性能的影响,以及不同的DMP-30加入量对体系机械性能影响的研究,结合考察环氧活性稀释剂对降低环氧固化体系粘度的作用,最终得出了环氧体系中较为合适的环氧促进剂加入量和环氧稀释剂的种类。The drying time of an epoxy curing system is very depending on the amount of the accelerant in it. As the amount increases in the system, the drying property gets better gradually. This article explains how the curing accelerator DMP-30 works, using infrared spectrum method for characterizing the microscopic reaction process. This article focuses on the investigation on how DMP-30 affects the drying property of an epoxy system at temperature between -15~C and 5~C and how it affects the mechanical property of the system. Combining the research of how the existing of reactive diluent in the system reduces the system viscosity, conclusion has been made to indicate the proper amount of accelerant and the proper type of reactive diluent to be added into the system.

关 键 词：环氧体系 DMP-30 硬干时间 固化促进剂 环氧活性稀释剂 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]