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

IOP Conference Series: Materials Science and Engineering 2015
Kaspars Ozols, Māris Knite

Polyisoprene/nanostructured carbon black (PNCB) composite samples with different amount of carbon black (CB) filler were prepared. Investigations of mechanical pressure induced relative capacitance changes (RCC) depending on frequency (20 Hz – 2 MHz) were 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). At a certain frequency and a certain filler amount RCC effect changes its sign. Pressure induced capacitance changes at least for low CB filler concentrations are caused by piezopermittivity property of the PNCB composite.

Atslēgas vārdi
carbon nanocomposite, polyisoprene, piezocapacitance, piezopermittivity
DOI
10.1088/1757-899X/77/1/012024
Hipersaite
http://iopscience.iop.org/article/10.1088/1757-899X/77/1/012024

Ozols, K., Knite, M. Mechanical Pressure Induced Capacitance Changes of Polyisoprene/Nanostructured Carbon Black Composite Samples. IOP Conference Series: Materials Science and Engineering, 2015, Vol., Iss.177, 012024.-012024.lpp. ISSN 1757-8981. e-ISSN 1757-899X. Pieejams: doi:10.1088/1757-899X/77/1/012024

Publikācijas valoda
English (en)