酚改性二甲苯甲醛树脂的热分解动力学  

Kinetics of Thermal Decomposition of Phenol-Modifying Xylene-Formaldehyde Resin

作　　者：赵春秋[1] 刘胜平[1] 刘敏[1] 马源[1] 

机构地区：[1]华东理工大学材料科学与工程学院,上海201512

出　　处：《高分子材料科学与工程》2008年第11期107-110,共4页Polymer Materials Science & Engineering

摘　　要：用热重法(TGA)分析了酚改性二甲苯甲醛(XF)树脂的热分解过程。运用Ozawa和Kissinger法进行动力学研究,得到其热分解活化能。结果表明:与普通线性酚醛树脂相比,苯酚改性XF树脂和双酚A改性XF树脂这两种改性树脂在热分解过程中的活化能都高,热分解温度也较高,热失重率降低;其中双酚A改性XF树脂的热分解活化能和热分解温度最高,热失重率最低;这说明双酚A改性XF树脂具有优异的耐热性能。The behavior of thermal decomposition of phenol-modifying xylene-forrnaldehyde（XF） resin was investigated by TGA in this paper. The kenetic analysis was performed by means of Kissinger and Ozawa method. The results show that both phenol-modifying XF resin and BPA- modifying XF resin can improve the heat-resistant performance. The results also show that the activation energy and the decomposition temperature of the BPA-modifying XF resin are the highest and the mass losses percent is the lowest of the three resins in thermal decomposition. So BPA- modifying XF resin has the exeellent property of heat-resistant.

关 键 词：酚醛树脂 改性 热分解 动力学 

分 类 号：O631.22[理学—高分子化学]