Modification of PA 6 fibres with alkaline copolyamides

This contribution is devoted to the preparation of copolyamides from E-capr olactam, adipic acid, and diethylenetriamine and to the establishment of so me basic characteristics of copolyamides. Experimental data confirm the pos sibility to synthesize copolyamides with relative molecular mass high enoug h to prepare blended fibres. Blended fibres from 90-50 mass % of PA 6 and 1 0-50 mass % of copolyamide were prepared and the hydrophilicity, elastic, e lectrical, and mechanical properties of PA 6 fibres were studied. Besides m echanical properties all other properties of blended fibres are better in c omparison with those of unmodified PA 6 fibres.