摘要
用差热扫描分析四甲基双酚F型氰酸酯树脂的固化反应特性,用红外光谱跟踪其聚合反应过程,用阿贝折射仪监控氰酸酯树脂聚合反应过程中折光系数的变化情况。结果表明,四甲基双酚F型氰酸酯树脂的热均聚过程在160～200℃环境下反应过程缓慢,便于制作预聚体的工艺操作;常温状态呈琥珀状透明胶体的预聚体适宜的氰基转化率为36～38%;预聚体制作过程可以用树脂折光指数的变化情况进行控制,适宜的折光指数范围为1.5760～1.5820。
The curing characteristics of bisphenol F cyanate resin is analysised by differential scanning calorimetry analysis. The polymerization reaction process is tracked with infraredspectrum. And the evolution of refraction coefficient is monitored by Abbe Refractometer. The results show that thermal polymerization process of tetramethyl bisphenol F-cyanate ester resin reacts slowly under 160 -200 ℃ environment,which is convenient for process operation. The conversion rate of cyano is 36 - 38%. Prepolymer resin production process can be controlled by refraction coefficient, the appropriate refraction coefficient range of 1. 5760 to 1. 5820.
出处
《玻璃钢／复合材料》
CAS
CSCD
北大核心
2008年第6期28-32,共5页
Fiber Reinforced Plastics/Composites
关键词
氰酸酯
聚合反应
折光指数
cyanate ester resin
polymerization reaction
refraction coefficient
