Method for Recycling Wasted Nylon Fish Net and Recycled Nylon filament fiber

摘要

PURPOSE: A method for recycling wasted nylon fish net is provided to easily recover materials through depolymerization without separate dismantlement and selection of a wasted fish net. CONSTITUTION: A method for recycling wasted nylon fish net comprises the steps of: washing a wasted nylon fish net; depolymerizing the washed nylon fish net; oxidizing and purifying the depolymerized lactam water; filtering the oxidized lactam water; treating the filtered lactam water with an ion-exchange resin; adding sodium hydroxide aqueous solution to the filtered lactam water and distilling the mixture; distilling the resultant lactam; and polymerizing and distilling the lactam.