桥梁加固用EP结构胶/低温固化剂体系固化动力学研究  

Study on curing kinetics of EP structure adhesive/low temperature curing agent system for reinforcing bridge

作　　者：杜素军[1,2] 

机构地区：[1]山西省交通科学研究院,山西太原030006 [2]重交通公路养护材料协同创新平台,山西太原030006

出　　处：《中国胶粘剂》2016年第1期1-4,共4页China Adhesives

基　　金：山西省交通运输厅科研计划项目(2014-1-7)

摘　　要：制备了环氧树脂（EP）结构胶用低温（5℃）固化剂。采用固定E（表观活化能）值和可变E直法对EP／低温固化剂体系进行非等温固化动力学研究。研究结果表明：采用固定E值法和可变E值法计算出该体系的E值（分别为59．78kJ／mol和55．98～64．39kJ／mol）明显低于其他常温固化体系，说明其反应活性较高。固定E值法计算简单，可快速对体系的反应活性进行判定；可变E值法可真实反映体系的E值随反应进程的变化情况，但计算较为复杂，不利于快速筛选。The low temperature （5 ℃ ） curing agent for epoxy resin （EP） structure adhesive was prepared. The non-isothermal curing kinetics of the EP/low temperature curing agent system was investigated by fixed or variable E（apparent activation energy） values methods. The research results showed that the above system had the higher reactivity because the E values （59.78, 55.98- 64.39 kJ/mol respectively） of the above system, which were calculated by fixed or variable E values methods, were obviously lower than those of other room temperature curing systems. The fixed E value method, which calculate was simple, could quick identify the reactivity of system. The variable E values could really reflect the change between the E value of system and reaction process ,but it was not conducive to rapid screening because its calculation was more complex.

关 键 词：结构胶 环氧树脂 低温固化剂 动力学 固定表观活化能 可变表观活化能 

分 类 号：TQ436.2[化学工程] TQ433.437