Enhanced Strain-Dependent Electrical Resistance of Polyurethane Composites with Embedded Oxidized Multiwalled Carbon Nanotube Networks
Joint Authors
Slobodian, P.
Riha, P.
Benlikaya, R.
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-11-21
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The effect of different chemical oxidation of multiwalled carbon nanotubes with H2O2, HNO3, and KMnO4 on the change of electrical resistance of polyurethane composites with embedded oxidized nanotube networks subjected to elongation and bending has been studied.
The testing has shown about twenty-fold increase in the electrical resistance for the composite prepared from KMnO4 oxidized nanotubes in comparison to the composites prepared from the pristine and other oxidized nanotubes.
The evaluated sensitivity of KMnO4 treated composite in terms of the gauge factor increases with strain to nearly 175 at the strain 11%.
This is a substantial increase, which ranks the composite prepared from KMnO4 oxidized nanotubes among materials as strain gauges with the highest electromechanical sensitivity.
The observed differences in electromechanical properties of the composites are discussed on basis of their structure which is examined by the measurements of Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscope.
The possible practical use of the composites is demonstrated by monitoring of elbow joint flexion during two different physical exercises.
American Psychological Association (APA)
Benlikaya, R.& Slobodian, P.& Riha, P.. 2013. Enhanced Strain-Dependent Electrical Resistance of Polyurethane Composites with Embedded Oxidized Multiwalled Carbon Nanotube Networks. Journal of Nanomaterials،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1007672
Modern Language Association (MLA)
Benlikaya, R.…[et al.]. Enhanced Strain-Dependent Electrical Resistance of Polyurethane Composites with Embedded Oxidized Multiwalled Carbon Nanotube Networks. Journal of Nanomaterials No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-1007672
American Medical Association (AMA)
Benlikaya, R.& Slobodian, P.& Riha, P.. Enhanced Strain-Dependent Electrical Resistance of Polyurethane Composites with Embedded Oxidized Multiwalled Carbon Nanotube Networks. Journal of Nanomaterials. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1007672
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1007672