聚酯/聚酰胺共聚纤维的结构及其理化性能  

Structure and physicochemical properties of polyester/polyamide copolymer fiber

作　　者：梁必超[1] 韩春艳[2,3] 季轩[2] 魏青[1] 赵炯心[4] 王建庆[1] LIANG Bichao HAN Chunyan JI Xuan WEI Qing ZHAO Jlongxin WANG Jianqing(National Engineering Research Center for Dyeing and Finishing of Textiles, Donghua University, Shanghai 201620, China Research Institute of Sinopec Yizheng Chemical Fiber Company Limited, Yizheng, Jiangsu 211900, China Jiangsu Key Laboratory of High Performance Fiber, Yizheng, Jiangsu 211900, China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China)

机构地区：[1]东华大学国家染整工程技术研究中心,上海201620 [2]中国石化仪征化纤有限责任公司研究院,江苏仪征211900 [3]江苏省高性能纤维重点实验室,江苏仪征211900 [4]东华大学纤维材料改性国家重点实验室,上海201620

出　　处：《纺织学报》2016年第11期1-7,共7页Journal of Textile Research

摘　　要：为探究聚酯/聚酰胺共聚纤维的结构和性能,采用傅里叶红外光谱、X射线衍射、差示扫描量热等方法对其结构和热性能进行了研究,同时考察了纤维对常见酸、碱、氧化剂、还原剂的耐受性能。结果表明:该纤维由聚酯和聚酰胺2种组分构成,结晶度为46.95%,玻璃化转变温度、结晶温度和熔融温度分别为70、150、233℃,具有较好的热稳定性;纤维对氢氧化钠的耐受性能较差,在氢氧化钠质量浓度为80 g/L,温度为90℃,处理60 min的条件下,纤维减量率高达97%;纤维对碳酸钠、盐酸、硫酸、过氧化氢、保险粉表现出较强的耐受性,但对硝酸的耐受性较差。To investigate the structure and properties of polyester/polymer （PET-A） fiber, the structure and thermal stability of PET-A fiber were studied by means of Fourier transform infrared spectroscopy （FT-IR） , X-ray diffraction （XRD） and differential scanning calorimetry （DSC）. At the same time, fiber’s tolerance under different conditions of alkali、acid、oxidizing agents and reducing agents were analyzed. Result shows that PET-A fiber is composed of polyester and polyamide two components and its crystallinity is 46.95% . The thermal stability of PET-A fiber is better, and the glass transition temperature, crystallization temperature and melting temperature are 70℃、150℃ and 233℃, respectively. The tolerance of PET-A fiber in sodium hyddroxide solution is poor and the weight loss rate of fiber more than 97% under the conditions of NaOH 80g/L, 90℃ and 60min. But PET-A fiber has better tolerance in sodium carbonate solution, hydrochloric acid, sulfuric acid, hydrogen peroxide and sodium dithionite solution. However it has poor tolerance in nitric aced solution.

关 键 词：聚酯纤维 聚酯/聚酰胺共聚纤维 理化性能 断裂强度 减量率 

分 类 号：TQ342.92[化学工程—化纤工业]