Analyzing polyether-based PU elastomers

摘要

Polyurethane (PU) elastomers are suitable candidates for making elastomers used in dynamic applications, such as industrial wheels (forklift wheels, material cart wheels, escalator wheels), industrial rollers (printing rolls, paper mill rolls, metal handling rolls), automotive bushings, suspension pads and industrial belts (drive belts, conveyor belts and timing belts). These applications account for more than 50 percent of the high performance engineering elastomer market. In these applications, PU elastomers are subjected to cyclic deformations of large magnitude and high frequency. This leads to internal heat buildup due to the internal molecular friction during the deformation cycles.