超支化三嗪化合物接枝碳纳米管及其对BOZ/BMI树脂固化动力学的影响  

Synthesis of HPTC-CNTs and their influence on curing kinetics of BOZ/BMI

作　　者：李婷婷[1] 颜红侠[1] 冯书耀 刘天野[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：《粘接》2015年第5期51-55,60,共6页Adhesion

基　　金：西北工业大学研究生创业种子基金(Z2014025)P;高等学校博士学科点专项科研基金资助课题(博导类)(20136102110049)

摘　　要：为了提高碳纳米管(CNTs)在苯并噁嗪(BOZ)/双马来酰亚胺(BMI)树脂中的分散性,采用三聚氯氰(TCT)接枝修饰CNTs制得超支化三嗪化合物接枝碳纳米管(HPTC-CNTs)。利用非等温差示扫描量热法(DSC)研究了HPTC-CNTs/BOZ/BMI和BOZ/BMI的固化动力学,求得其固化工艺参数为:HPTCCNTs/BOZ/BMI体系的凝胶温度为145.55℃,固化温度为183.67℃,后处理温度为264.50℃;BOZ/BMI体系的固化工艺条件:凝胶温度为144.47℃,固化温度为187.94℃,后处理温度为264.70℃。HPTC-CNTs/BOZ/BMI体系的表观活化能为79.45 kJ/mol,反应级数为0.935;BOZ/BMI体系的表观活化能为87.28 kJ/mol,反应级数为0.930。In order to improve the dispersity of carbon nanotubes （CNTs） in the resins matrix of benzoxazine （BOZ）/bismaleimide （BMI）, the CNTs grafted with hyperbranched triazine compounds （HPTC-CNTs） were prepared by grafting CNTs using cyanuric chloride. The curing kinetics analysis of the HPTC-CNTs/BOZ/BMI and BOZ/BMI systems was carried out via differential scanning calorimetry （DSC）. The curing parameters were obtained as follows： for of HPTC-CNTs/BOZ/BMI system, gelling temperature 145.55T3, curing temperature 183.67℃, post-treating temperature 264.50℃; for BOZ/BMI system, gelling temperature 144.47℃, curing temperature 187.94℃, post-treating temperature 264.70℃, The reaction activation energies of HPTC-CNTs/BOZ/BMI and BOZ/BMI systems were 79.45KJ/mol and 87.28 KJ/mol, respectively. The reaction orders of HPTC-CNTs/BOZ/BMI and BOZ/BMI systems were 0.935 and 0.930, respectively.

关 键 词：超支化三嗪化合物 碳纳米管 苯并噁嗪/双马来酰亚胺树脂(BOZ/BMI) 固化反应动力学 

分 类 号：TQ430.4[化学工程]