INFLUENCE OF THE RELATIVE AIR HUMIDITY ON THE WEAR RESISTANCE OF POLYURETHANE UREAS WITH VARIOUS CONTENT OF HARD SEGMENTS IN THE POLYMER CHAIN

Abstract

It was determined that wetting polyurethane urea based on polytetramethylene oxide diol Polyfurit-1000 lead to significant deterioration in their resistance to the abrasive wear. This effect was associated with a weakening of the interchain interaction in the studied polymers relating with the moisture action. The results were compared with suitable changes in the elastic and strength characteristics of the studied materials.