PROCESS FOR PREPARING ACRYLIC FIBRES WITH PERMANENT ANTISTATIC PROPERTIES AND IMPROVED THERMAL STABILITY

摘要

the invention refers to a process to achieve antistatizare properties of acrylics with permanent and termostabilitate enhanced,characterized by filarii that obeys a mixture composed of 7 - 11% polyacrylonitrile, carbon black finely dispersed with dimensions below 0,5 niu in ratio of 2 to 7%.solvent, ethylene carbonate or watery solution of 80 - 100% ethylene carbonate at a temperature of 60 - 70 degree c with a speed of 10 to 40 m / min through the bushings with diameter 80 - 100 niuit curdles into a bath containing 7 - 16% ethylene carbonate in water at a temperature of 50 - 60 degree c is pull cylinders trained with a speed of 10 - 25m / min,it etireaza end in dry condition in a ratio of 1: 1: 1.4 - 1.6.