Method for producing a precursor fiber to obtain a carbon fiber of high modulus and high strength

摘要

The present invention provides a method for producing a precursor fiber can be manufactured of carbon fiber high modulus and high strength. Method of the invention comprises preparing an aqueous solution of amphoteric molecules; polyacrylonitrile carbon nanotube dispersion; This step of adding carbon nanotubes in an aqueous solution of amphoteric molecules, it is to disperse the carbon nanotubes to prepare a carbon nanotube dispersion liquid from spinning dope this, process get coagulated fiber by dry-wet spinning method or wet; process mixed with zinc chloride or rhodanate silicate and polymer, to prepare a spinning solution precursor of carbon fibers by stretching the coagulated fiber and It comprises the step of obtaining the fiber body.