季戊四醇丙烯醛树脂体系固化动力学及流变特性  

Curing Kinetics and Rheology Property of Acrolein-pentaerythritol Resin System

作　　者：蔡贾林[1] 高登攀[1] 郑申声[1] 池钰[1] 

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621999

出　　处：《含能材料》2015年第6期558-562,共5页Chinese Journal of Energetic Materials

基　　金：中物院化材所青年人才培养基金(QNRC-201305)

摘　　要：采用动态差示扫描量热法(DSC)对季戊四醇丙烯醛树脂体系的非等温固化反应动力学进行了研究。通过Kissinger方程和Crane方程对DSC数据进行了分析,得到固化反应的平均表观活化能为14.32kJ·mol-1,指前因子3.84×103 K,反应级数0.95,建立了该树脂体系的固化动力学模型,发现体系在10,15,20℃·min-1和30℃·min-1升温速率下的固化度分别为0.9503,0.9147,0.8871,0.8695,表明固化反应速率越慢,所得产物的固化度越高。采用粘度实验研究了季戊四醇丙烯醛树脂体系在341,347,353K和359K下固化过程的流变特性,并获得了该树脂体系的粘度模型。The non-isothermal curing kinetics of acrolein-pentaerythritol resin system were studied by dynamic differential scanning calorimetry（DSC）.The DSC data were analyzed by the Kissinger and Crane equations.The kinetic parameters were calculated and the curing kinetic model for acrolein-pentaerythritol resin system was also established.Based on the viscosity experiments at 341,347,353 K and 359 K,the rheological model on the foundation of Arrhenius equation was built.Results show that the apparent activation energy,reaction order and frequency factor of curing reaction are 14.32 kJ·mol-1,0.95,3.84×103 K,respectively.The curing degree are 0.9503,0.9147,0.8871 and 0.8695 at the heating rates of 10,15,20 ℃·min^-1and 30 ℃·min^-1,which indicates that with the decreasing of heating rate,the curing degree increases.

关 键 词：季戊四醇丙烯醛树脂 固化动力学 流变特性 粘度模型 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]