含苯并恶嗪及联苯结构双邻苯二甲腈共聚树脂  

Study on the bisphthalonitrile copolymer with benzoxazine and diphenyl structures

作　　者：左芳[1] 雷雅杰[2] 钟家春 赵睿[2] 刘孝波[2] 

机构地区：[1]西南民族大学化学与环境保护学院,四川成都610041 [2]电子科技大学微电子与固体电子学院,四川成都610054

出　　处：《热固性树脂》2011年第4期1-4,10,共5页Thermosetting Resin

基　　金：国家自然基金项目(50903011)

摘　　要：将联苯结构的双邻苯二甲腈树脂(4,4'-二-3,4-二腈基苯氧基联苯,简称BPH)熔融后与含有苯并恶嗪单元的双邻苯二甲腈树脂(简称BZ-BPH)共混。通过示差扫描量热法(DSC)、流变测试研究了共混树脂的固化工艺性能,通过热重分析(TGA)研究了共混树脂固化物的耐热性能。此外采用SEM观察了浇注样的断面结构。结果表明,通过调节BZ-BPH的加入量可实现对固化工艺的调控。经过240℃/4 h+280℃/4 h+320℃/4 h+375℃/6 h的固化,产物在空气和氮气下5%热失重温度均高于500℃(高于BPH固化物)。BZ-BPH与BPH之间共聚形成了均相的交联网络。The bisphthalonitrile with diphenyl structure （4, 4 - bis - 3, 4 - dicyano - phenoxy biphenyl, BPH） was melted and then blended with the bisphthalonitrile with benzoxazine structue （ BZ - BPH）. The curing process performence of BZ - BPH/BPH blends were studied by DSC and rheological test. The thermal stability of the cured blends was investigated by TGA. The facture structure of the cured blend sample was analized by SEM. The results indicated that the curing process could be regulated by changing the BZ - BPH amounts. The 5% weight loss temperature （ Ts% ） in nitrogen and air of the cured products were both higher than 500℃ and higher than that of BPH. The homogeneous cross - linked network was formed for the copolymerization of BZ - BPH and BPH.

关 键 词：苯并恶嗪 联苯结构 双邻苯二甲腈 共聚 固化 耐热性 

分 类 号：TQ320.6[化学工程—合成树脂塑料工业]