MANUFACTURING METHODS OF CONDUCTINE MC NYLON AND CONDUCTINE MC NYLON THEREOF

摘要

A method for preparing conductive monomer casting nylons is provided to impart high electroconductivity and good mechanical strength to monomer casting nylons by adding carbon fiber powder having good electroconductivity and excellent dispersibility during an initial polymerization step. A method for preparing conductive monomer casting nylons includes the steps of: preparing a catalyst bath and a co-catalyst bath having the same volume; vacuum-drying a monomer(lactam) to a moisture content of 0.01wt% or less; charging 60-95wt% of the vacuum-dried monomer(lactam) and 5-40wt% of carbon fiber powder into the catalyst bath, thereto adding a catalyst, and stirring the admixture at a revolution speed of 500-5000 rpm for 3 minutes or more; putting the vacuum-dried monomer(lactam) having the same amount as the monomer(lactam) charged into the catalyst bath, a co-catalyst, and a dispersant/antifoaming agent into the co-catalyst bath, and mechanically mixing the admixture; heating a mixing bath to 100-120 °C; charging the monomer(lactam) mixed with a catalyst, and the monomer(lactam) mixed with a co-catalyst into the heated mixing bath, and stirring the mixture homogeneously for 4-7 minutes; heating a mold to 140-180 °C; and putting the homogenized mixture into the heated mold, and polymerizing the mixture.