Open AccessВлияние методов формирования полимерных композитных материалов с углеродными нанотрубками на механизмы электропроводности
Author(s) -
Ф.Ф. Комаров,
И.Д. Парфимович,
А.Г. Ткачев,
А.В. Щегольков,
О.В. Мильчанин,
В. Бондарев
Publication year - 2021
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2021.03.50526.222-20
Subject(s) - carbon nanotube , materials science , composite material , conductivity , composite number , surface modification , electrical resistivity and conductivity , ultrasonic sensor , polymer , chemical engineering , chemistry , electrical engineering , physics , acoustics , engineering
The influence of the method of formation of nanostructured polymer composites filled with carbon nanotubes to their electrophysical properties was carried out. The influence of the «size effect» of multi-walled carbon nanotubes, functionalization method, and ultrasonic treatment method on the electrical conductivity of composite materials in the frequency range 50 Hz - 5 MHz and the temperature range 15 - 375 K has been established. The presence of various mechanisms of electric transport in composite materials that affect the final value of electrical conductivity is established. The best results of electrophysical parameters are observed with a combination of non-covalent functionalization of nanotubes and high-power ultrasonic exposure. This method allows us to achieve a conductivity value of composite materials of 0.01 S/cm in the studied frequency range at a filler concentration of 0.5 wt.%.