不饱和聚酯树脂/CaCO_3体系固化动力学非等温DSC研究  

Establishment of the Kinetics Equation of the Curing Reaction Between CaCO_3 Particles and UP Resin by Dynamic DSC

作　　者：雷文[1] 凌志达[2] 鞠昭年[1] 朱丽珺[1] 宰德欣[1] 

机构地区：[1]南京林业大学,江苏南京210037 [2]南京工业大学,江苏南京210009

出　　处：《南京林业大学学报（自然科学版）》2003年第6期48-50,共3页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：南京林业大学引进高层次人才和高层次留学回国人员科研基金资助项目(G2002-21)

摘　　要：采用示差扫描量热(DSC)法对不饱和聚酯树脂(UP树脂)/CaCO3复合体系的固化过程进行研究,得出不同升温速率下UP树脂/CaCO3复合体系固化过程中的DSC曲线,并由动态DSC曲线求出固化反应的活化能、固化反应级数及动力学方程中的指前因子等参数,建立了复合体系固化反应动力学的数学模型。The curing reactions of UP/CaCO3 composite is studied by DSC at different temperature raising rates.The apparent activation energy,reaction orders and the preexponential factor for the kinetic equation of the reaction are calculated based on the results of the dynamic DSC curves,and finally the kinetic equation of the curing reaction of the CaCO3/UP resin composite is established.The results show that the DSC curves of UP/CaCO3 composite will give an single peak respectively,but the temperature of the peak gets,higher when the heating rate of the composite is raised.And the reaction order of the composite will also vary with the heating rate,the greater the rate is,the smaller the reaction order is.In addition,the mathematic model can be applied to stand for the curing reaction of UP/CaCO3 composite approximately under the experimental situations.

关 键 词：不饱和聚酯树脂/CaCO3体系 固化反应 UP树脂 示差扫描量热法 DSC 活化能 反应级数 动力学方程 数学模型 塑料制品 指前因子 

分 类 号：TQ320.2[化学工程—合成树脂塑料工业] TQ323.42