氨化对三元共聚聚丙烯腈原丝的影响  

Influence of Amination on the Terpolymer Polyacrylonitrile Precursor

作　　者：王华[1,2] 王翔[1] 韩笑[2,3] 王增加[2,3] 李崇俊[1,2] 

机构地区：[1]西安航天复合材料研究所,陕西西安710025 [2]高性能碳纤维制造及应用国家地方联合工程研究中心,陕西西安710089 [3]西安康本材料有限公司,陕西西安710025

出　　处：《合成纤维》2012年第10期1-4,共4页Synthetic Fiber in China

摘　　要：制备了聚丙烯腈三元共聚和三元氨化共聚聚合液,并对两种聚合液进行了湿法纺丝。使用傅里叶变换红外光谱仪、旋转黏度计、金相显微镜、电子万能试验机等仪器设备分析表征了影响两种聚合液的黏度、黏均分子质量、纤维截面及纤维拉伸性能的因素。结果表明:氨化能提高聚合液的黏度、黏均分子质量和亲水性;三元共聚聚合液制备的纤维在纺丝过程中拉伸性要好于氨化聚合液制备的纤维,能进行12倍的拉伸,但是截面形状要差于氨化后的纤维。Terpolymer and aminated terpolymer of polyacrylonitrile were made and spun by wet-spinning technology.The influence of viscosity,viscosity-average molecular weight,fiber cross section and fiber strenching property of polymers were studied by using FT-IR,rotational viscometer,metallographic microscope,electromechanical testing machine.It was shown that the viscosity,viscosity-average molecular weight and hydrophilicity were improved by amination.The fiber stretching property of terpolymer was better than aminated terpolymer,it could be stretched at the retio of 12,but the fiber cross section was less round than aminated terpolymer.

关 键 词：聚丙烯腈 氨化 黏度 亲水性 纺丝拉伸 

分 类 号：TQ342.31[化学工程—化纤工业]