Electrical and Mechanical Properties of Polymer Composite through the Use of Single-Walled Carbon Nanotube and Multi-Walled Carbon Nanotube

To manufacture composites with required properties, it is extremely important to select an appropriate filler. Carbon-based nano materials such as carbon black, graphene and nanotube (CNT) have been extensively investigated reinforcing conducting fillers. Because of their high aspect ratio coupled superior physical 1-dimensional CNTs are ideal filler impart electrical conductivity insulating polymers, while enhancing mechanical strength. In this study, we the piezo-resistive properties consisting two types CNT classified multi-walled (MWNT) or single-walled (SWNT) depending on number walls. Since MWNT SWNT different specific surface area ratio, can affect composite’s performance. more effectively evaluate effect MWNTs SWNTs in composites, used thermoplastic polyurethane (TPU) a matrix, which stretchable elastomer. Morphological mechanical/electrical characterizations were conducted determine differences composites. addition, dynamic strain sensing tests each type compare sensitivity sensor. Differences behaviors attributed loss contact points during stretching. These results serve useful design guideline for wider use