摘要
通过测试凝胶时间与温度的关系,得到乙烯基树脂的表观活化能并进行了分析。在粘度实验的基础上,依据双阿累尼乌斯方程建立了与之相吻合的流变模型。结果表明:乙烯基树脂的凝胶时间随温度升高而缩短,其表观活化能仅有3.04 kJ/mol。乙烯基树脂低粘度状态持续时间>30 min,符合树脂传递模塑成型工艺(VAR-TM)对树脂低粘度的要求。最终建立的粘度模型,可有效预测和模拟树脂体系在不同工艺条件下的粘度行为。
The apparent activation energy of the vinyl resin was obtaind and analyzed according to the testing of relationship between gel time and temperature.Based on the viscosity experiments,the rheological model consistented with Arrhenius equation was established.The results showed that： the gel time of vinyl resin was shortened with the increasing of temperature and the apparent activation energy of vinyl resin was only 3.04 kJ/mol.The time of vinyl resin keeping low viscosity state was longer than 30 min and met the low viscosity requirement of resin transfer molding process（VARTM） to the resin.The eventual established viscosity model could effectively predict and simulate viscosity behavior of the resin system under different process conditions.
出处
《热固性树脂》
CAS
CSCD
北大核心
2012年第4期25-28,共4页
Thermosetting Resin
基金
山西省科技创新计划项目(2009101004)资助
