Modification and long-range prediction of the creep behaviour of polypropylene^a

Abstract

Various approaches for the enhancement of creep resistance of polypropylene products prepared from fibres, filaments, tapes and films for use as technical textiles are reviewed. These include the right choice of the starting material; appropriate processing parameters; crosslinking; copolymerization; use of additives; and use of polymer mixtures. Following this, a model evolved for the long-range prediction of creep has been applied to the creep of oriented yarn prepared from a polypropylene blend containing 5 wt.% of polystyrene.