聚酰胺66纤维的热稳定性研究  

Study on the Thermal Stability of Polyamide 66 Fiber

作　　者：谢甲增 戴宏翔 林型跑 李文武[1] 陈海相[1] 

机构地区：[1]浙江理工大学纺织纤维材料与加工技术国家地方联合工程实验室,浙江杭州310018 [2]杭州市质量技术监督检测院,浙江杭州310019

出　　处：《合成纤维》2017年第8期7-10,33,共5页Synthetic Fiber in China

基　　金：浙江省质监系统科研项目(20150234)

摘　　要：采用热重分析(TG)和热裂解气质联用(Py-GC/MS)方法研究了聚酰胺66纤维的热稳定性和热裂解机制。结果表明:聚酰胺66纤维在氮气气氛中的热分解过程为一步反应,热分解活化能为186.4 kJ/mol,470℃以上可完全分解,热稳定性良好。聚酰胺66纤维的热裂解产物主要是环戊酮,峰面积百分比达24.27%。The methods of thermogravimetry（TG） and pyrolysis-gas chromatography/mass spectrometer （PyGC/MS） were used to research the stability and pyrolysis mechanism of polyamide（PA）66 fiber.The results showed that it only took one step during the thermal decomposition of PA66 fiber,186.4 kJ/mol activation energy would be conducted at the meantime.PA66 fiber would be completely resolved above 470 ℃C.Regardless that,it had good stability.The main thermal pyrolysis outcome of PA66 fiber was cyclopentanone,whose peak area percentage reached to 24.27%.

关 键 词：聚酰胺66纤维 热稳定性 裂解机制 

分 类 号：TQ342.12[化学工程—化纤工业]