仪纶共聚酯热降解动力学研究

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英文篇名：Kinetics of thermal degradation for polyamide ester 作者：潘小虎 ; 李乃祥 ; 庞道双 ; 戴钧明 英文作者：Pan Xiaohu;Li Naixiang;Pang Daoshuang;Dai Junming;Research Institute of Sinopec Yizheng Chemical Fibre Co., Ltd.;Jiangsu Key Laboratory of High Performance Fiber; 关键词：聚酰胺酯 ; 热降解 ; 降解机理 英文关键词：polyamide ester;;thermal degradation;;degradation mechanism 中文刊名：HCSY 英文刊名：Synthetic Technology & Application 机构：中国石化仪征化纤有限责任公司研究院;江苏省高性能纤维重点实验室; 出版日期：2019-03-28 出版单位：合成技术及应用 年：2019 期：v.34;No.125 语种：中文; 页：HCSY201901001 页数：5 CN：01 ISSN：32-1414/TQ 分类号：4-8

摘要

使用热失重分析法(TGA)研究了聚酰胺酯(仪纶共聚酯)的热降解动力学。结果表明:仪纶共聚酯与常规半消光聚酯(PET)和聚己内酰胺(PA6)相比,其降解行为更接近PA6:在热降解反应初期其降解活化能略低,但在反应后期降解活化能较高;仪纶共聚酯中少量聚酰胺组分的引入,很大程度上改变了聚酯的分子结构,导致其降解机理与PET差异较大,表现为单核粒子随机成核机理。
        The degradation kinetics of the polyamide ester was studied by means of the TGA method. Results showed that the copolymer had a simile degradation behavior with the PA6, and their activation energy of the degradation reaction were slightly lower in the early state while higher in the late reaction stage compared with that of the semi-dull PET. Moreover the introduction of a small amount of polyamide component into the copolymer had changed the molecular structure to a large extent, resulting in a large difference between its degradation mechanisms with the PET, which was characterized by random nucleation mechanism of mononuclear particles.

引文

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