沥青-环氧树脂复合材料体系的固化反应动力学研究  

Curing kinetics of asphalt-epoxy resin composite system

作　　者：王熙[1] 张璐璐[1] 

机构地区：[1]西安建筑科技大学材料与矿资学院,西安710055

出　　处：《化工新型材料》2017年第6期128-130,133,共4页New Chemical Materials

基　　金：国家自然科学基金(51403170);陕西省自然基金(2014JQ2-5025)

摘　　要：采用非等温差示扫描量热法(DSC)研究沥青-环氧树脂复合材料(EA)的固化反应动力学。分别采用n级反应模型和自催化反应模型对其固化反应动力学参数进行求解,并得到固化反应动力学方程,通过T~β外推法确定EA的固化工艺和最佳固化温度。分析结果表明,自催化反应模型在5~25℃/min升温范围内更适合描述EA体系的反应动力学;该体系的最佳固化条件应为:在130℃固化2h,在160℃固化3h。The curing kinetics of asphalt-epoxy resin composite system was studied by non-isothermal differential scanning calorimetry（DSC）at different heating rates.The curing kinetics parameters were calculated using an order reaction model and the autocatalytic model,respectively and then the curing kinetics model was determined.The curing processing was optimized by T~βextrapolation method to determine the optimum curing temperature.The results indicated that the model established could describe the curing reaction process of composite system when determined with 5~25℃/min.The curing processing was determined as cured at 130℃for two hours,then cured at 160℃for three hours.

关 键 词：非等温差示扫描量法 沥青-环氧树脂 固化动力学 固化工艺 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ323.5[化学工程—合成树脂塑料工业]