Strain Sensor Based on MWCNT-Natural Rubber Composite for Wearable Electronics

In this work thin films train sensors based on natural rubber (NR)/multi-walled carbon nanotubes (MWCNT) composites are proposed. The field of application are wearable electronics and structural health monitoring. The sensors can be fabricated in different geometries depending on the application. Because of the highly flexible polymer matrix it is possible to reach elongations above 150%. The electrical response was measured at different strains showing reproducibility and linearity. In addition, the morphology and surface properties were investigated by electron microscopy and atomic force microscopy (AFM) showing smooth surface.