双马来酰亚胺改性酚醛树脂的制备及其性能研究  

Study on preparation and properties for PF modified by BMI

作　　者：曹鹏[1] 齐暑华[1] 理莎莎[1] 刘乃亮[1] 

机构地区：[1]西北工业大学理学院应用化学系,陕西西安710129

出　　处：《中国胶粘剂》2011年第12期16-19,共4页China Adhesives

摘　　要：采用烯丙基氯对PF(酚醛树脂)进行醚化,得到AEN(烯丙基化酚醛树脂);然后将其与BMI(双马来酰亚胺)共聚,制备BMAEN(BMI改性AEN)。采用红外光谱(FT-IR)法、差示扫描量热(DSC)法和热失重分析(TGA)法等手段对其结构和耐热性等进行了表征与分析。结果表明:BMAEN的耐热性能良好,其5%失重温度提高了47.5℃、最快热分解温度为462.0℃且800℃时残炭率为47.48%;BMAEN基玻璃纤维增强型复合材料的力学性能明显优于未改性PF基玻璃纤维增强型复合材料。The AEN[PF（phenol formaldehyde resin） etherified by allyl chloride] was prepared,then the BMAEN[AEN modified by BMI（bismaleimide）] was prepared by copolymerization between AEN and BMI. Its structure and heat resistance were characterized and analyzed by infrared spectrum（FT-IR）,differential scanning calorimetry（DSC） and thermogravimetry（TGA）. The results showed that the BMAEN had good heat resistance because temperature at 5% weight loss of BMAEN was 47.5 ℃ more than that of unmodified PF,the former fastest thermal decomposition temperature and carbon residue rate at 800 ℃ were 462.0 ℃ and 47.48% respectively. The mechanical properties of BMAEN-based composite enhanced by glass fiber were obviously better than those of unmodified PF-based composite enhanced by glass fiber

关 键 词：酚醛树脂 双马来酰亚胺 改性 共聚物 耐热性 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]