Mechanical Pressure Induced Capacitance Changes of Polyisoprene/Nanostructured Carbon Black Composite Samples

Joint 12th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity and 9th International Conference "Functional Materials and Nanotechnologies": Book of Abstracts 2014
Kaspars Ozols, Māris Knite

Electroconductive polyisoprene/nanostructured carbon black (PNCB) composites show pronounced resistance change effect when subjected to mechanical deformation. This effect has been used to develop flexible mechanical pressure and organic solvent vapor sensors. To advance the composites for sensor applications there is a need for additional studies concerning nanoparticle movement while applying mechanical pressure. Investigation of mechanical pressure induced relative capacitance changes (RCC) depending on frequency (20 Hz – 2 MHz) was conducted. It was found that PNCB samples show pronounced and rather complex RCC effect, which depends on frequency, amount of filler (1 – 10 phr of CB) and pressure (from 0 to 234 kPa).

Atslēgas vārdi
carbon black, nanocomposite, piezocapacitance

Ozols, K., Knite, M. Mechanical Pressure Induced Capacitance Changes of Polyisoprene/Nanostructured Carbon Black Composite Samples. No: Joint 12th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity and 9th International Conference "Functional Materials and Nanotechnologies": Book of Abstracts, Latvija, Rīga, 29. Sep-2. Okt., 2014. Riga: Institute of Solid State Physics, University of Latvia, 2014, 339.-339.lpp. ISBN 978-9984-45-875-5.

Publikācijas valoda
English (en)