On the Electrical Resistance Relaxation of 3D-Anisotropic Carbon-Fiber-Filled Polymer Composites Subjected to External Electric Fields
Source abstract
Abstract
Flexible composites as sensors are applied under a small voltage, but the effect of the external electrical field on the resistance is always ignored and unexplored by current research. Herein, we investigate the electrical resistance relaxation of anisotropic composites when they are subjected to an external electric field. The anisotropic composites were 3D-printed based on carbon-fiber-filled silicon rubber. Constant DC voltages were applied to the composites, and the output electrical current increased with time, namely the electrical resistance relax with time. The deflection and migration of carbon fibers are dominantly responsible for the resistance relaxation, and the angle’s evolution of a carbon fiber, under the application and removal of the electrical field, was well observed. The other factor hindering the resistance relaxation is the increased temperature originating from the Joule heating effect. This work provides a new understanding in the working duration and the static characteristics of flexible composites.
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Research context
OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Smart Materials for Construction · Conducting polymers and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China
Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
Funding
National Natural Science Foundation of China
References (14)
Show source-provided references
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