Comparative Analysis of 3D Printed and Cast Conductive Rubber for Enhanced Tactile Sensing Applications

This study investigates the development of conductive natural rubber for use in tactile sensors, with a particular focus on comparing two fabrication techniques: 3D-printed conductive rubber and cast conductive rubber. The 3D-printed conductive rubber is made using natural rubber mixed with carbon black as the conductive agent. This additive manufacturing process constructs the material layer by layer, ensuring a more uniform distribution of carbon black throughout the structure. In contrast, the casting technique, which is a conventional method, involves allowing the conductive rubber mixture to cure over time. During this process, carbon black particles often settle at the bottom of the mold, resulting in a non-uniform distribution of the conductive agent. These differences in fabrication methods significantly affect the properties and performance of the tactile sensors produced. By analyzing the outcomes of both techniques, this study aims to provide valuable insights for optimizing fabrication processes, ultimately enhancing sensor functionality and reliability for future applications.