METHOD OF MANUFACTURING COPOLYMERIZED ARAMID FIBER AND COPOLYMERIZED ARAMID FIBER MANUFACTURED THEREBY

摘要

The present invention relates to a method for manufacturing copolymerized aramid fiber which is characterized by adding 0.5-50 wt% of polyvinylpyridine for the weight of copolymerized aramid polymer during a process of polymerizing a polymerized solution including the copolymerized aramid polymer when manufacturing copolymerized aramid fiber by radiating and coagulating the polymerized solution after polymerizing the polymerized solution by adding and reacting terephthaloyl dichloride with an organic solvent where an aromatic diamine including a cyano group is solved. The copolymerized aramid fiber of the present invention is manufactured by the same method to have intrinsic viscosity of 6.0 or more. In the present invention, polyvinyl pyridine having excellent bonding properties to dye and increasing polymerization of the copolymerized aramid copolymer and solubility in the polymerized solution by absorbing HCl generated during polymerization is put when polymerizing aramid polymer to increase dyeing properties and intrinsic viscosity of the manufactured copolymerized aramid fiber and increase solubility of the copolymerized aramid polymer in polymerized solution and thus increasing radiating properties.