摘要
以自制的松香改性酚醛环氧树脂(RPAE)为对象,采用差示扫描量热法研究了其与4,4-二氨基二苯砜组成的体系(RPAE/DDS)的固化动力学,利用Kissinger方程计算得到体系的固化热约为109.29J/g,表观活化能为51.56kJ/mol,该体系反应级数为0.85,近似为1级反应,反应速率常数为2.69×104/s。采用Ozawa-Flynn-Wall方程分析,得到体系的表观活化能为70.1kJ/mol。
Kinetics of curing reaction of rosin modified phenol-aldehyde epoxy resins （RPAE） with 4,4＇-diamino diphenyl sulphone （DDS） was investigated by DSC. The curing kinetics equations were deduced from Kissinger equation and Ozawa-Flynn-Wall equation. The parameters obtained by Kissinger are as following： the curing reaction .heat is 109.29 J/g, the apparent activation energy is 51.56 kJ/mol, the curing reaction order is 0.85, near 1, the reaction rate constant is 2.69× 10^4/s. The apparent activation energy obtained by Ozawa-Flynn-Wall is 70.1 kJ/mol.
出处
《广州化学》
CAS
2009年第1期7-13,共7页
Guangzhou Chemistry
基金
福建省科技计划重点项目(2002N029)
关键词
松香改性酚醛环氧树脂
DDS
动力学
反应热
表观活化能
rosin modified phenol-aldehyde epoxy resin, DDS, curing kinetics, reaction heat, apparent activation energy
