环氧树脂/聚酰胺体系固化动力学和TTT图绘制  

Cure kinetics and TTT-diagram of epoxy resin/ polyamide system

作　　者：李霓[1,2] 何洋洋[2] 罗欣[2] 王利平[1] 王欢[3] 

机构地区：[1]内蒙古工业大学轻工与纺织学院,内蒙古呼和浩特010080 [2]中国纺织科学研究院生物源纤维制造技术国家重点实验室,北京100025 [3]东华大学纺织学院,上海201620

出　　处：《热固性树脂》2016年第2期4-8,共5页Thermosetting Resin

摘　　要：在环氧树脂中加入自制的聚酰胺固化促进剂制得固化体系,采用动态DSC研究了该固化体系的固化动力学,建立了固化动力学的唯象模型。研究了等温条件下固化度、温度和时间的关系及固化度和玻璃化转变温度之间的关系。通过平板拉丝法研究了凝胶时间和凝胶温度之间的关系,并通过回归得到固化体系凝胶时的固化度和玻璃化转变温度,在此基础上绘制了该固化体系的温度-时间转换图(TTT图)。The curing system was prepared by adding self-made polyamide curing accelerator in the epoxy resin. The curing kinetics of the curing system was studied by dynamic DSC and the phenomenological model of curing kinetics was established. The relationship of the curing degree,temperature and time under the isothermal condition was studied. The relationship between curing degree and glass transition temperature was analyzed. The relationship between gel- time and temperature was investigated by gelation disk experiment.The curing degreee at gelation and glass transition temperature of the system were also obtained. Based on the above results the time-temperature-transition diagram was presented.

关 键 词：环氧树脂 聚酰胺 固化动力学 凝胶 温度-时间转换图 

分 类 号：TB332[一般工业技术—材料科学与工程]