METHOD OF PREPARING HEAT AND LIGHT STABILIZER FOR POLYCAPROAMIDE FIBER

摘要

FIELD: artificial fibers. SUBSTANCE: stabilizer is prepared by reaction of equimolar amounts of phthalic anhydride and ethylenediamine with cupric sulfate in water-alkali medium at 20 to 100 C. Yield of product is 91%, decomposition temperature 230 C, gross formula CHNOCu. Polycaproamide fibers with incorporated stabilizer show increased heat resistance (from 84-89 to 91-96%) and light resistance (from 55-66 to 70-75%). EFFECT: increased heat and light resistance of fibers. 2 tbl