Conductivity-Dependent Strain Response of Carbon Nanotube Treated Bacterial Nanocellulose
Artikel i vetenskaplig tidskrift, 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.

Författare

Sadia Farjana

Chalmers, Teknisk fysik, Elektronikmaterial och system

Farshad Toomadj

Chalmers, Teknisk fysik, Elektronikmaterial och system

Per Lundgren

Chalmers, Teknisk fysik, Elektronikmaterial och system

Anke Sanz-Velasco

Chalmers, Teknisk fysik, Elektronikmaterial och system

Olga Naboka

Chalmers, Teknisk fysik, Elektronikmaterial och system

Peter Enoksson

Wallenberg Wood Science Center (WWSC)

Chalmers, Teknisk fysik, Elektronikmaterial och system

Journal of Sensors

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

Styrkeområden

Nanovetenskap och nanoteknik

Transport

Produktion

Materialvetenskap

Ämneskategorier

Materialteknik

Elektroteknik och elektronik

Nanoteknik

Kemi

Infrastruktur

Nanotekniklaboratoriet

DOI

10.1155/2013/741248

Mer information

Senast uppdaterat

2018-08-24