聚乙烯醇缩甲乙醛改性酚醛树脂的热稳定性研究  

Thermal-stability of phenolic resin modified with poly(vinyl formalacetal)

作　　者：朱春山[1] 孙保帅[1] 

机构地区：[1]河南工业大学化学化工学院,河南郑州450001

出　　处：《热固性树脂》2010年第1期23-25,共3页Thermosetting Resin

摘　　要：以苯酚、甲醛、聚乙烯醇缩甲乙醛为原料,合成了改性酚醛树脂,通过红外光谱表征了聚乙烯醇缩甲乙醛改性酚醛树脂的结构,并通过TGA分析了聚乙烯醇缩甲乙醛改性酚醛树脂的热性能。结果表明:聚乙烯醇缩甲乙醛改性的酚醛树脂初始热分解温度为271.8℃,796℃时失重76.43%,与聚乙烯醇缩丁醛改性的酚醛树脂相比,由于缩短了酚醛树脂的碳链,热稳定性增加。The modified phenolic resin was synthesized with phenol , formaldehyde and poly（ vinyl formalacetal）. The structure of modified phenolic resin was characterized by infrared spectroscopy and the thermo - property of modified resin was analyzed by thermogravimetric analyzer. The result showed that the initial thermal decomposition and the the weight loss at 796 ℃ of poly（ vinyl formalacetal） modified phenolic resin was 271.8℃ and 76.43% respectively. The carbon chain of poly （ vinyl formalacetal） modified phenolic resin was shorted compared with that of poly （ vinyl butyral） modified, therefore the thermo - stability was better than the latter.

关 键 词：聚乙烯醇缩甲乙醛 酚醛树脂 热稳定性 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]