双酚A-苯胺型苯并恶嗪/酸酐体系固化反应动力学  

Curing kinetics of bisphenol A-aniline based-benzoxazine/anhydride system

作　　者：周倩[1] 杨坡[1] 凌红[1] 顾宜[1] 

机构地区：[1]四川大学高分子科学与工程学院,高分子材料工程国家重点实验室,四川成都610065

出　　处：《热固性树脂》2014年第5期1-5,9,共6页Thermosetting Resin

基　　金：国家自然科学基金项目(51273119)资助

摘　　要：通过非等温示差扫描量热法对双酚A-苯胺型苯并恶嗪(BA-a)/十二烯基丁二酸酐(DDSA)体系及BA-a的固化反应进行了研究。采用Kissinger和Ozawa法计算了BA-a与BA-a/DDSA两体系的表观反应活化能,并测试了BA-a/DDSA体系的冲击性能结果表明,DDSA的引入可明显降低BA-a的固化反应温度及反应活化能,改善苯并恶嗪的韧性。采用Málek法对两体系进行模型拟合及动力学分析发现SB(m,n)模型拟合曲线可与实验曲线较好地吻合,并以此确定出了体系的固化反应动力学参数和方程,为工艺参数的选择提供了参考。The curing reactions of bisphenol A-aniline type benzoxazine（BA-a）/dodecenylsuccinic anhydride（DDSA）system and BA-a were studied by non-isothermal differential scanning calorimetry. The apparent activation energies of BA-a/DDSA and BA-a systems were calculated using Kissinger and Ozawa methods. The impact properties BA-a/DDSA system were tested. The results showed that the curing reaction temperature and activation energy of BA-a could be significantly reduced and the impact stiength of benzoxazine was improved by the introduction of DDSA. The model fitting using Málek method and dynamics analysis of the two systems showed that the SB（m,n）model fitting curves were in good agreement with the experimental curves. Thus the curing kinetics parameters and equations were confirmed and a reference could be provided for selecting the process parameters.

关 键 词：苯并恶嗪 酸酐 固化动力学 Málek法 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]