ION-EXCHANGE COMPOSITES BASED ON MODIFIED POLYPROPYLENE STRANDS PRODUCED BY POLYCONDENSATION FILLING

摘要

An investigation is reported into fibrous cation-exchange materials (FCEMs) based on additionally modified profiled PP strands produced by polycondensation filling. The additional modification of the profiled PP strands was carried out by thermomechanical, chemical, UHF, and low-temperature cryotreatment. The PP strands had a changed cross-sectional geometry, differing from round-cross-section strands for better sorption properties. The FCEMs obtained were used for the purification of caprolactam-containing waste waters. 16 refs. (Article translated from Plasticheskie Massy, No.5, 2006, p.50-52).