Open AccessEffect of Conductive Carbon Black Concentration on Tyre Regenerate Properties
Author(s) -
K. P. Antoev,
N. V. Shadrinov
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1079/4/042025
Subject(s) - carbon black , materials science , shore durometer , composite material , ultimate tensile strength , electrical conductor , elongation , electrical resistivity and conductivity , natural rubber , dispersion (optics) , temperature coefficient , carbon fibers , electrical engineering , physics , optics , composite number , engineering
Electrically conductive rubber on the basis of tyre regenerate and conductive carbon black (OMCARB CH85) is developed. It is shown that an increase in conductive carbon black concentration leads to an increase in tensile strength and Shore A hardness of the tyre regenerate. However, due to insufficient dispersion of carbon black, a decrease in relative elongation and resistance to abrasive wear is observed. A study of volume resistivity showed that the obtained rubbers are semiconductor materials. Dependence of specific resistance on temperature in a range from 10 to 80°C is constructed. It is shown that the effect of positive thermal coefficient is observed in all obtained samples.