不饱和聚酯树脂/复合引发体系固化反应动力学研究  

Curing Kinetics of Unsaturated Polyester Resin and Complex Initiation System

作　　者：刘春林[1] 张兰芬[1] 陶国良[1] 龚方红[1] 

机构地区：[1]江苏工业学院材料科学与工程学院,江苏常州213164

出　　处：《中国塑料》2009年第5期61-65,共5页China Plastics

摘　　要：采用差示扫描量热法(DSC)研究不饱和聚酯树脂/复合引发体系的等温固化反应动力学。选择修正的自催化模型对等温固化DSC数据进行处理,用最小二乘法进行非线性回归,确定等温反应速率常数k0和反应级数m、n,得到动力学方程。结果表明,不同温度下该模型拟合曲线的相关系数均在98%以上,与实验数据点相吻合,因此所选模型对该体系适用。In this paper, the isothermal curing kinetics of unsaturated polyester resin with complex initiation system was studied using differential scanning calorimetry （DSC）. The modified autocatalytic kinetic model was chosen to deal with the isothermally curing DSC data, the reaction rate constant k0 and reaction order m, n were acquired by nonlinear regression with least-squares method. The obtained correlation coefficients at different temperatures were above 98 %. This indicated that the chosen model was suitable for the system.

关 键 词：不饱和聚酯树脂 差示扫描量热法 固化动力学 自催化模型 动力学方程 

分 类 号：TQ323.42[化学工程—合成树脂塑料工业]