摘要
制备了R2511、R2512两种RTM环氧树脂体系,研究了其工艺性能、固化性能及力学性能,分析表明:两种树脂体系均具有适宜的低粘度操作窗口,R2511树脂体系的最佳工艺区间为40~50℃,R2512树脂体系的最佳工艺区间为常温灌注;R2511树脂体系活化能为72 kJ/mol,R2512树脂体系活化能较低,为62 kJ/mol;R2512树脂体系整体力学性能优于R2511树脂体系;两种树脂适用于不同的温度体系。
Two kinds of epoxy resin systems R2511 and R2512 were prepared to obtain the appropriate system for carbon fiber reinforced composites.The processing property,curing characteristics and mechanical property of the composites by using RTM molding has been investigated thoroughly.The results show that the two kinds of systems own the good operating window with low viscosity.The optimum operating temperature of R2511 system using RTM ranged between 40 ℃ and 50 ℃,while the room temperature was more suitable for R2512.The activation energy of R2511＇s 72 kJ/mol,while R2512 have the lower value 62 kJ/mol.As to the overall mechanical property of composites,R2512 was also superior to R2511 system.Therefore,the two kinds of resin are suitable for epoxy resin systems with different operating temperature.
出处
《玻璃钢／复合材料》
CSCD
北大核心
2017年第8期97-101,47,共6页
Fiber Reinforced Plastics/Composites
关键词
RTM
环氧树脂
工艺性能
力学性能
活化能
RTM
epoxy resin
processing property
mechanical property
activation energy
