Conductivity-Dependent Strain Response of Carbon Nanotube Treated Bacterial Nanocellulose
Journal article, 2013

This paper reports the strain sensitivity of flexible, electrically conductive, and nanostructured cellulose which was prepared by modification of bacterial cellulose with double-walled carbon nanotubes (DWCNTs) and multiwalled carbon nanotubes (MWCNTs). The electrical conductivity depends on the modifying agent and its dispersion process. The conductivity of the samples obtained from bacterial cellulose (BNC) pellicles modified with DWCNT was in the range from 0.034 S·cm−1 to 0.39 S·cm−1, and for BNC pellicles modified with MWCNTs it was from 0.12 S·cm−1 to 1.6 S·cm−1. The strain-induced electromechanical response, resistance versus strain, was monitored during the application of tensile force in order to study the sensitivity of the modified nanocellulose. A maximum gauge factor of 252 was found from the highest conductive sample treated by MWCNT. It has been observed that the sensitivity of the sample depends on the conductivity of the modified cellulose.

Author

Sadia Farjana

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Farshad Toomadj

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Per Lundgren

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Anke Sanz-Velasco

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Olga Naboka

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Peter Enoksson

Wallenberg Wood Science Center (WWSC)

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Journal of Sensors

1687-725X (ISSN) 1687-7268 (eISSN)

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Transport

Production

Materials Science

Subject Categories

Materials Engineering

Electrical Engineering, Electronic Engineering, Information Engineering

Nano Technology

Chemical Sciences

Infrastructure

Nanofabrication Laboratory

DOI

10.1155/2013/741248

More information

Latest update

8/24/2018