半芳香族尼龙6I/6T的合成及表征
Synthesis and Characterization of Semi-Aromatic Nylon 6I/6T
刘羽玲 1马立群 2刘冰肖 2李媛 2孟佩玉 2谭善兴 1刘显勇 1王忠强1
作者信息
- 1. 广东中塑新材料股份有限公司,广东 东莞 523860
- 2. 太原工业学院,山西 太原 030051
- 折叠
摘要
本文以己二胺、间苯二甲酰氯和对苯二甲酰氯为原料,通过界面聚合预聚+固相缩聚法制备得到了聚间苯二甲酰/对苯二甲酰戊二胺的共聚物(PA6I/6T).采用傅里叶红外光谱和氢核磁共振波谱对其结构进行了确认,通过乌氏粘度计对其相对粘度进行了测试,在此基础上,利用热重分析仪对共聚物的热分解温度及降解动力学进行了分析.结果显示,共聚物相对粘度为1.429;热分解5％温度,最大热降解速率温度均随着升温速率增加而逐渐升高;其热降解机理函数类型为二维扩散(D2).
Abstract
This article uses hexamethylene diamine,meta phthaloyl chloride,and para phthaloyl chloride as raw materials to prepare poly(meta phthaloyl/para phthaloyl)pentane diamine copolymers(PA6I/6T)through interface polymerization pre polymerization+solid-phase condensation method.The structure of the copolymer was confirmed using Fourier transform infrared spectroscopy and hydrogen nuclear magnetic resonance spectroscopy,and its viscosity was tested using a Ubbelohde viscometer.Based on this,the thermal decomposition temperature and degradation kinetics of the copolymer were analyzed using a thermogravimetric analyzer.The results showed that the relative viscosity of the copolymer was 1.429;The temperature of thermal decomposition is 5％,and the maximum temperature of thermal degradation rate gradually increases with the increase of heating rate;Its thermal degradation mechanism function type is D2(Two-dimensional diffusion,valensi equation).
关键词
尼龙6I/6T/界面聚合/固相缩聚/半芳香族尼龙/半芳香族聚酰胺Key words
nylon 6i/6t/interface aggregation/solid phase polycondensation/semi-aromatic nylon/semi-aromatic polyamide引用本文复制引用
出版年
2024
NETL
NSTL
万方数据