Thermal Stimulated Conductivity in Cellulose Triacetate-Multiwalled Carbon Nanotube Polymer Films

Abstract

This paper describes the preparation and study of thermally stimulated discharge conductivity (TSDC) study of cellulose triacetate (CTA) -multiwalled carbon nanotubes (MWNTs) film thermoelectrets. TSDC has been carried out in the temperature range 308 -503 K and at four different polarizing fields. The conductivity of the polymer blends increased with increase in temperature showing a semi-conducting behavior. The apparent activation energy also showed a pronounced effect with the increase in the content of MWNTs.

Morphology and Charge Transport Properties of Chemically Synthesized Polyaniline-poly(ε-caprolactone) Polymer Films

“…In a similar fashion the use biopolymers as in our earlier research, [28][29][30]34,35 it is expected that the conductivity values should increase. Despite increasing the concentration of the biopolymer (PCL), the conductivity increases for a particular concentration (10-40 wt %) and further increase in the same causes the decrease in the conductivity.…”

“…The characterization of the composites was described in earlier studies. [28][29][30][31][32][33][34][35][36][37] The FT-IR spectra of the samples were measured by a Perkin Elmer (model 783) IR spectrometer in KBr medium at room temperature. The UV-vis spectra were recorded by a Shimadzu UV-vis-NIR spectrophotometer (UV-3101PC) in chloroform.…”

“…have been studied. [28][29][30][31][32][33][34][35][36][37] It was found that there has been an increase in these properties of the conducting polymers (PANI and PPy) after the formation of composites with the above biopolymers. It is for the reason that an effort has been made to synthesize new PANI composites with PCL.…”

“…[28][29][30][31][32] One of the important advancements in this direction is the preparation of the hybrid nanocomposite materials of these polymers with selective inorganic/organic components. [33][34][35][36][37] Yet another avenue of research that has been successful to a certain extent is the search for biodegradable materials that can be successful replacements for synthetic polymers while also serving as better alternatives for plastic wastes.…”

Low-Birefringent and Highly Tough Nanocellulose-Reinforced Cellulose Triacetate

“…However, these methods cause a significant decrease in the optical transparency of the polymer films and increase the birefringence. Although some studies of CTA/filler composites have been reported, − the birefringence of such reinforced CTA composites has not been revealed. Reinforcement that can preserve both the transparency and birefringence of CTA is required.…”