Electromechanical characterization of piezoresistive carbon-elastomer composites

Logan Ritchie; E.-F. Markus Henke; Elke Pahl; Iain A. Anderson

doi:10.1117/12.3009803

9 May 2024 Electromechanical characterization of piezoresistive carbon-elastomer composites

Logan Ritchie, E.-F. Markus Henke, Elke Pahl, Iain A. Anderson

Proceedings Volume 12945, Electroactive Polymer Actuators and Devices (EAPAD) XXVI; 129450T (2024) https://doi.org/10.1117/12.3009803
Event: SPIE Smart Structures + Nondestructive Evaluation, 2024, Long Beach, California, United States

Abstract

Stretchable electronic conductors are an important class of material enabling electroactive polymer (EAP) research. One of the most common approaches to creating a stretchable conductor is to embed conductive particles within a nonconductive matrix material to create a composite with favourable electromechanical properties. Whether an EAP device employs these composites for specific functions like strain sensing or simply as deformable electronic interconnects, the interplay between mechanical deformation and electronic conductivity frequently emerges as a central concern. While these materials are simple to produce, the relationship between mechanical strain and changes in electrical resistivity (piezoresistivity) can be complex and difficult to predict, and the factors that influence this behaviour are not well understood. This study focused on the comprehensive electromechanical characterization of various samples of piezoresistive elastomer composites. The work examined how a range of factors such as filler loading, matrix material, strain properties, additives, and production methodologies affected the piezoresistive properties of these composites. This work identifies key factors that can affect the magnitude, time dependence, and even direction of piezoresistivity. By identifying important influencing factors, the results of this work are intended to assist researchers in designing materials that are best suited for their specific use case.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Logan Ritchie, E.-F. Markus Henke, Elke Pahl, and Iain A. Anderson "Electromechanical characterization of piezoresistive carbon-elastomer composites", Proc. SPIE 12945, Electroactive Polymer Actuators and Devices (EAPAD) XXVI, 129450T (9 May 2024); https://doi.org/10.1117/12.3009803

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available