Open AccessВлияние температуры на электрофизические характеристики углеродосодержащих полимерных композитов
Author(s) -
А.М. Зюзин,
А.А. Карпеев,
Н.В. Янцен
Publication year - 2022
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2022.06.52512.335-21
Subject(s) - materials science , carbon black , crystallization , composite material , composite number , ethylene vinyl acetate , saturation (graph theory) , polymer , peroxide , electrical resistivity and conductivity , vinyl acetate , hysteresis , chemical engineering , natural rubber , polymer chemistry , chemistry , organic chemistry , copolymer , mathematics , electrical engineering , physics , combinatorics , quantum mechanics , engineering
The influence of temperature on the electrophysical characteristics of polymer composites based on a matrix of ethylene vinyl acetate filled with carbon black (CB) is investigated. It is established that the most noticeable transformation of the temperature dependences of the resistivity ρ(T) after the first heating – cooling cycle occurs in composite samples saturated with peroxide. Saturation of the composite with peroxide and the crosslinking of macromolecules leads to the N-shaped character of the dependence ρ(T). The occurrence of hysteresis ρ(T) and its character indicate that in the studied composites, the process of crystallization of the polymer matrix has significantly less effect on the destruction of the conductive mesh formed as a result of agglomeration of CB particles compared with the processes accompanying melting.