共聚尼龙66/1212树脂的非等温结晶动力学分析  

Kinetics of Non-Isothermal Crystallization of Copolymerized Nylon 66/1212

作　　者：崔晶[1] 李应成[1] 林程 刘京妮 沈超 CUI Jing;LI Yingcheng;LIN Cheng;LIU Jingni;SHEN Chao(Shanghai Research Institute of Petrochemical Technology,SINOPEC,Shanghai 201208,China)

机构地区：[1]中国石油化工股份有限公司上海石油化工研究院,上海201208

出　　处：《化学反应工程与工艺》2022年第3期248-253,共6页Chemical Reaction Engineering and Technology

摘　　要：为了得到高性能的尼龙材料,通过将尼龙66(PA66)与尼龙1212(PA1212)共聚合成了共聚尼龙66/1212(PA66/1212),并采用差示扫描量热仪(DSC)对其非等温结晶动力学过程进行分析。结果表明:与PA66和PA1212相比,PA66/1212的结晶温度最低,结晶速率最慢。在非等温结晶过程中PA66/1212的结晶生长方式更倾向于二维生长,而PA66与PA1212的结晶生长方式更倾向于三维球状晶体。PA66/1212的非等温结晶活化能为-76.9 kJ/mol,小于PA66(-127.1 kJ/mol)和PA1212(-155.4 kJ/mol)的值。In order to obtain high-performance nylon materials, nylon 66/1212(PA66/1212) was synthesized by copolymerizing nylon 66(PA66) with nylon 1212(PA1212). Then its process of non-isothermal crystallization kinetics was analyzed by differential scanning calorimeter(DSC). The results showed that PA66/1212 had the lowest crystallization temperature and the slowest crystallization rate compared with PA66 and PA1212. It also showed that the crystal growth mode of PA66/1212 was more likely to two-dimensional growth while the crystal growth mode of PA66 and PA1212 were tend to three-dimensional spherical crystal in the non-isothermal crystallization process. The non-isothermal crystallization activation energy of PA66/1212 was-76.9 kJ/mol, which is lower than that of PA66(-127.1 kJ/mol) and PA1212(-155.4 kJ/mol) respectively.

关 键 词：尼龙 聚酰胺 结晶动力学 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]