热重质谱联用技术对酚醛树脂热解行为及动力学研究  

Pyrolysis and Kinetics of Phenolic Resin by TG-MS Analysis

作　　者：黄娜[1] 刘亮[1] 王晓叶[1] 

机构地区：[1]航天材料及工艺研究所,先进功能复合材料技术重点实验室,北京100076

出　　处：《宇航材料工艺》2012年第2期99-102,共4页Aerospace Materials & Technology

摘　　要：采用热重分析法和热重质谱联用技术考察了氨酚醛树脂的热解反应行为,以Coats-Redfern积分法对实验数据进行动力学解析,得到了氨酚醛树脂热解反应的动力学参数。结果表明,氨酚醛树脂的热解反应分为两种:在600℃以下的低温区,以链断裂反应为主;在600～800℃的高温区,以脱氢反应为主。氨酚醛树脂热解反应可以用两个分段一级动力学方程来描述,升温速率对两种热解反应的表观活化能影响都不大。The pyrolysis characteristic of phenolic resin has been investigated by means of thermogravimetric analysis and TG-MS analysis.Models of the pyrolysis kinetics were derived using the coats-redfern integral method.The results show that the pyrolysis reactions of phenolic resin have two types： reaction of chain breaking（600℃ in the low temperature region） and reaction of dehydrogenation（600 to 800℃ in the high temperature region）.The pyrolysis of phenolic resin can be described by first-order kinetics equations in both temperature regions.Different heating rates do not show evident influence on the active energy of two pyrolysis reactions.

关 键 词：酚醛树脂 热解 TG-MS法 动力学 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]