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《工程塑料应用》 2019年第09期
DOI:10.3969/j.issn.1001-3539.2019.09.001
聚酰胺62共聚物的制备及性能
李淑秀1,杨婷婷1,高远博1,何勇2
1. 东华大学材料科学与工程学院,上海 201620; 2.东华大学纺织科技创新中心,上海 201620 
The Preparation and Performance of Polyamide 62 Copolymers
Li Shuxiu1, Yang Tingting1, Gao Yuanbo1, He Yong2
1. College of Materials Science and Engineering, Donghua University, Shanghai 201620, China; 2. Innovation Center for Textile Science and Technology of DHU, Donghua University, Shanghai 201620, China 
摘要:为了适当降低聚酰胺62 (PA62)的熔点,改善其熔融加工性能,采用胺酯缩合聚合法将1,2-双(2-氨基乙氧基)乙烷(BAE)作为二胺共聚单元导入PA62主链,制备PA62/BAE2共聚物。使用核磁共振、傅立叶变换红外光谱、动态扫描量热、热重分析、广角X射线衍射等测试方法,对PA62/BAE2共聚物的结构、热性能、结晶性能、吸水性能进行了表征。结果表明,成功合成了PA62/BAE2系列共聚物,通过引入BAE链段有效降低PA62熔点、改善加工性能,同时共聚物整体呈现优异的热稳定性(T5≥385℃)和结晶性(XC≥26%)。此外,PA62/BAE2饱和吸水率随BAE含量增加而逐渐增大,最高为7.9%,但仍低于PA6(10%)。PA62/BAE2共聚物的综合性能良好,有望在汽车零部件等耐高温领域应用。 
Abstract:1,2-bis(2-aminoethoxy)ethane (BAE) comonomer was introduced into the main chain of PA62 as the flexible segment by amine ester polycondensation to prepare a series of PA62 copolymer. It was expected to reduce the melting point as well as providing better toughness by copolymeration. The structure, thermal stability, crystallization and hydroscopicity were characterized by FTIR, 1H-NMR, DSC, TG and WAXD. The results show that a series of PA62/BAE2 copolymers are successfully prepared, and the introducing of BAE effectively reduce the melting point and improve the processing performance while maintaining good thermostability(T5≥385℃) and crystallinity(XC≥26%). In addition, the saturated water absorption of PA62/BAE2 polyoxamides increases with the add of BAE, which can up to 7.9%, but is still lower than PA6(10%). PA62/BAE2 copolymers can be used widely for high temperature resistant areas such as automotive parts with excellent comprehensive properties. 
关键词:聚酰胺62;1,2-双(2-氨基乙氧基)乙烷;聚草酰胺;胺酯缩合 
Keywords:poly(hexamethylene oxamide); 1,2-bis(2-aminoethoxy)ethane; polyoxamide; amino ester condensation 
基金:国家重点研发计划项目(2017YFB0309400) 
本文引用格式:
李淑秀,杨婷婷,高远博,等.聚酰胺62共聚物的制备及性能[J].工程塑料应用,2019,47(9):1-6.
Li Shuxiu,Yang Tingting,Gao Yuanbo,et al. The preparation and performance of polyamide 62 copolymers[J]. Engineering Plastics Application,2019,47(9):1-6. 

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