摘要
采用示差扫描量热法(DSC)在动态条件下研究了钢质管道防腐用熔结环氧粉末的反应特性,根据不同升温速率下测得的动态DSC曲线图谱,运用温度-升温速率(T-β)图外推法获得了基础的固化工艺参数,即凝胶温度(Tg)92.76℃、固化温度(Tc)133.94℃和后处理温度(Tt)160.58℃。并采用Kissinger方程和Crane公式计算确定了体系的固化反应动力学模型方程式,在此基础上,预测了等温条件下该种管道用熔结环氧粉末涂料的固化反应特性,对今后的管道防腐涂层施工提供了理论参考。
The kinetics of the curing reaction of fusion bonded epoxy powder coating (FBE) for anticorrosion of steel pipeline was studied by differential scanning calorimetry(DSC)under dynamic condition. According to the DSC curves at different beating rates and using T - β graph extrapolation the basic curing process parameters were obtained as follows: gel temperature Tg 92.76℃, curing temperature Tc 133.94℃, post treatment temperature Tt 150.58 ℃. The kinetic model of the curing process was set up using Kissinger equation and Crane equation. Base on this kinetic model, the characteristic of the curing reaction under isothermal condition was described which would provide the theory reference for the constuction of the anticorrosion coatings.
出处
《热固性树脂》
CAS
CSCD
2008年第5期40-41,44,共3页
Thermosetting Resin
关键词
钢质管道
防腐
熔结环氧粉末
固化反应动力学
steel pipeline
anticorrosion
fusion bonded epoxy powder coating
curing kinetics