摘要
采用差示扫描量热仪(DSC)对以三苯基膦为促进剂的联苯型环氧-酚醛体系进行了不同温度下的恒温固化动力学研究,然后利用经典的Kamal方程进行非线性曲线拟合得到了相应的动力学参数:如反应级数(n)、活化能(Ea)和反应动力学常数(k)。并根据Kamal方程建立了转化率α对固化时间t的自加速理论模型,发现该模型能够很好的预测联苯型环氧-酚醛体系在不同温度下随恒温时间的固化行为。
The cure kinetic study at different temperatures for the biphenyl epoxy-phenol novolac resin system catalyzed by triphenylphosphine was carried out by means of isothermal experiments using a different scanning calorimeter. All kinetic parameters including the reaction orders（n）, activation energy（Eα） and kinetic rate constants（k） were evaluated by non-linear curve fit using Kamal equation as model. The suggested kinetic model achieved from Karaal equation was successfully able to describe and predict the cure reaction of epoxy resin compositions as function of time at different temperatures.
出处
《化工新型材料》
CAS
CSCD
北大核心
2008年第7期61-62,84,共3页
New Chemical Materials
关键词
联苯型环氧
线性酚醛
固化动力学
biphenyl epoxy resin, linear phenol novolac, cure kinetic
