Volatile Products Formed during Electrical Breakdown of Polyethylene Terephthalate and Polypropylene Films in High Vacuum

In this article we present the results of time-of-flight mass spectrometry of volatile products formed during the electrical breakdown of polyethylene terephthalate and polypropylene polymer films in high vacuum. During the breakdown of films, all the substance emitted from the breakdown channel is...

Full description

Saved in:
Bibliographic Details
Published in:Technical physics 2023-12, Vol.68 (12), p.707-713
Main Authors: Pakhotin, V. A., Pozdnyakov, A. O., Sudar, N. T.
Format: Article
Language:English
Subjects:
Carbonation
Classical and Continuum Physics
Current carriers
Electric fields
Electrical faults
High vacuum
Ionization
Line spectra
Macromolecules
Mass spectra
Mass spectrometry
Physics
Physics and Astronomy
Polyethylene terephthalate
Polymer films
Polypropylene
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this article we present the results of time-of-flight mass spectrometry of volatile products formed during the electrical breakdown of polyethylene terephthalate and polypropylene polymer films in high vacuum. During the breakdown of films, all the substance emitted from the breakdown channel is a gas of low-molecular products of destruction of macromolecules. The breakdown mass spectra do not contain lines of carbon molecules, the presence of which could indicate carbonation of the channel. To explain the formation of charge carriers, the ionization mechanism of destruction of macromolecules in an electric field is used without the involvement of impact ionization. The final stage of electrical breakdown (the flow of a high-density conduction current) occurs when the critical concentration of traps and electrons ≈10 24 m –3 is reached.
ISSN:1063-7842
1090-6525
DOI:10.1134/S106378422308025X