Preparation method of novel high-selectivity fiber

The invention discloses a preparation method of novel high-selectivity fiber, which relates to the field of a functional high molecular material. A high-selectivity absorption separation fiber material using synthetic fiber as a framework is prepared by a series of chemical and physical methods such as washing, prepriming, chemical grafting polymerization priming by novel grafting liquid, washing, filtering, drying and the like. The method of the invention can be used for continuous industrial production for preparing long filaments or short filaments, filament bundles have the excellent performance such as large specific surface area, high absorption speed, strong selective absorption and separation capability, stability, no pollution, stable quality, good opening and loosening performance, good cutting performance, excellent antistatic performance and few filament bundle knots, the goal of selectively absorbing harmful substances such as polycyclic substances, alkaloid, carbonic oxide and the like in separa