Enhancing elastomeric performance and application window for thermoplastic polyurethanes (TPU) by incorporation of carbon nanotubes (CNTs)(PPT)

摘要

1. By addition of only 0.3wt% of CNTs, the application window of TPU increased up to 20°C and storage modulus improved up to 230% at high temperatures. 2. CNTs significantly improved mechanical properties of TPUs at higher temperatures. 3. Creep resistance is increased (up to 40%) by addition of 0.3 wt% CNTs and it was found that creep behavior is less sensitive to temperature changes for CNT nanocomposites. 4. Optimum mechanical properties were obtained for 0.3wt% CNT nanocomposite. CNT aggregation limits the mechanical performance of nanocomposites at higher loadings.