含氨基螯合纤维的制备 Ⅰ．前驱纤维的制备  

Preparation of chelate fiber containing amide group Ⅰ. Preparation of precursor fiber

作　　者：吴华[1] 卢奎林[1] 叶光斗[1] 李守群[1] 徐建军[1] 

机构地区：[1]四川大学高分子材料工程国家重点实验室高分子材料科学与工程学院,四川成都610065

出　　处：《合成纤维工业》2006年第3期4-6,共3页China Synthetic Fiber Industry

摘　　要：将N-乙烯基甲酰胺(NVF)与丙烯腈(AN)的共聚物溶液进行湿法纺丝,制备了含氨基螯合纤维的前驱纤维。研究了凝固条件、纺丝工艺、后处理条件对纤维的结构和性能的影响。结果表明:凝固浴中二甲基甲酰胺溶剂质量分数为20％,湿热拉伸倍数3．0、干热拉伸倍数3．5,纤维断裂强度达3．5 cN／dtex。扫描电镜观察表明纤维为圆形多孔断面,具有较高的孔隙率,适合于制备高效的螯合纤维。The precursor fiber for chelate fiber containing amide group was produced from the copolymer solution of N-vinylformamide （NVF） and acrylonitrile via wet spinning process, The effects of coagulation conditions, spinning process and after-treatment conditions on the structure and properties of the precursor fiber were studied, The results showed that the precursor fiber with breaking strength 3,5 cN/dtex can be produced under the conditions of 20% dimethyl formamide content in coagulation bath by mass fraction, wet-heat drawing ratio 3, 0, dry-heat drawing ratio 3.5, The SEM photographs showed that the obtained fiber had high void content owing to the circular cellular structure, which was suitable for high-efficiency chelate fiber.

关 键 词：N-乙烯基甲酰胺 丙烯腈 螯合纤维 二甲基甲酰胺 拉伸 

分 类 号：TQ342.792[化学工程—化纤工业]