双苯并噁嗪树脂的合成与固化性能研究  

Study on synthesis and curing properties of dibenzoxazine resin

作　　者：刘献伟[1] 贾德民[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510641

出　　处：《中国胶粘剂》2008年第8期9-11,共3页China Adhesives

摘　　要：采用溶液法和无溶剂法两种不同的工艺制备苯并噁嗪预聚体,利用红外光谱(FT-IR)法和核磁共振(1H NMR)法对其结构进行了表征,并使用差示扫描量热(DSC)法研究其固化过程。实验结果表明,该苯并噁嗪预聚体具有较高的成环率;其近似凝胶温度为182℃,固化温度为198℃,后处理温度为246℃。The dibenzoxazine prepolymer were synthesized by two different technology for direct-solution and solvent-free method. The structure of dibenzoxazine was characterized by infrared spectrum （FT-IR） and 1H nuclear magnetic resonance spectrum （1H NMR）, and its curing process were studied by differential scanning calorimetry （DSC）. The experiment results showed that the benzoxazine prepolymer had high ring content, and the approximate gelation temperature （Ti）was182℃, the curing temperature （Tp）was 198℃,the post treatment temperature （Tf） was 246℃.

关 键 词：双苯并嗯嗪 合成 固化 特征温度 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业] TQ433.43