Kinetics of electric destruction of polymer compositions

Aliyeva I. K., Naghiyev T., Aliyeva E. R.

MODERN PHYSICS LETTERS B, vol.37, no.12, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 37 Issue: 12
  • Publication Date: 2023
  • Doi Number: 10.1142/s0217984923500197
  • Journal Name: MODERN PHYSICS LETTERS B
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, INSPEC, zbMATH
  • Azerbaijan State University of Economics (UNEC) Affiliated: Yes

Abstract

The dependence of the electrical durability tau(E) (time from the application of constant voltage until breakdown) on the temperature T (in the range of 77-300 K) at different values of the electric field strength E of polymer compositions of polypropylene and low-density polyethylene (PP-LDPE) with different supramolecular structures (SMS) was measured. At elevated temperatures (similar to above 200 K), the dependence of lg tau(E)(T-1) is linear, indicating a thermofluctuational mechanism of breakdown preparation; at low temperatures (similar to below 200 K) tau E does not depend on T, which will allow us to conclude about its tunneling mechanism. The transition temperature of the linear dependence of tau(E) on T lies in the similar to 200 K range and depends on the value of the applied constant electric field.