Comparison of rubber vulcanisate properties filled with carbon black and used flexible polyurethane foams

Abstract

Polyurethane foam particles (PU) and carbon black were introduced as filters in natural rubber compounds and some properties of the rubber compounds were reviewed, these properties including tensile properties, dynamic mechanical thermal analysis, elongation set and swelling behavior. It was recommended from the results that PU filter at the concentration range of 20-30 parts per hundred rubbers (pph) gave a satisfactory level of reinforcement in the rubber compounds compared to carbon black-rubber reinforcements.