半芳香族耐高温PA10T/1010的非等温结晶动力学研究  

Study on Non-isothermal Crystallization Kinetics of Heat-resistant PA10T/1010 Copolyamide

作　　者：师文博[1] 胡国胜[1] 张静婷[1] 王忠强[1,2] 刘冰肖 

机构地区：[1]中北大学高分子与生物工程研究所,太原030051 [2]东莞市信诺橡塑工业有限公司,广东东莞523860

出　　处：《工程塑料应用》2016年第3期100-104,共5页Engineering Plastics Application

基　　金：广东省2013年度省部(院)产学研结合项目(2013B090500003)

摘　　要：利用对苯二甲酸、癸二胺、癸二酸合成了聚对苯二甲酰癸二胺(PA10T)和聚酰胺(PA)1010的共聚物PA10T/1010,通过差示扫描量热法研究了PA10T/1010的非等温结晶动力学,结果表明随着降温速率的增加,结晶温度和熔点不断降低,同时结晶温度的范围变宽,结晶所需时间减少。用Jeziorny法描述了PA10T/1010的非等温结晶过程,发现其结晶过程分为两段,晶体生长方式在前期为二维盘状生长,后期为多维生长。通过Mo法描述了PA10T/1010的非等温结晶动力学,发现降温速率越大,在单位时间内PA10T/1010所能达到的相对结晶度越高。最后通过Kissinger方法计算得到PA10T/1010非等温结晶活化能为–171.47 k J/mol。The copolyamide PA10T/1010 was synthesized with monomers including terephthalic acid,decamethylene di-amine and decanedioic acid,the non-isothermal crystallization kinetics of PA10T/1010 was studied by means of differential scan-ning calorimetry method (DSC). According to the DSC results,with the increasing of the cooling rate,thecrystallization temperature and melting decrease continually,while the range of crystallization temperature is widened,and the crystallization rate was acceler-ated significantly. The non-isothermal crystallization process of PA10T/1010 was studied by Jeziorny method,and it is found that the crystallization process is divided into two stages,the crystal grows in accordance with the model of two-dimensional discoid growth during the early stage and multi-dimensional growth during the late stage. The non-isothermal crystallization kinetics of PA10T/1010 was studied by Mo method,and it is found that the higher the cooling rate is,the higher relative crystallinity PA10T/1010 can reach in unit time. Lastly,the activation energy of non-isothermal crystallization of PA10T/1010 was calculated to be –171.47 kJ/mol through Kissinger method.

关 键 词：差示扫描量热法 非等温结晶动力学 聚对苯二甲酰癸二胺 共聚酰胺 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]