Decay of Electric Charge on Corona Discharge Polyethylene

• Authors: L. Zhang , Z. Xu , G. Chen
• Languages of publication: EN

Abstracts

EN

In this paper, surface potential decay after corona charge deposition has been investigated for low density polyethylene (LDPE) films. We believe that the three ways of electron charge decay on the surface of insulating polyethylene film is reasonable. The factor of neutralizing with opposite charge in air is negligible, and leakage along insulator surface or through the body is much more important for electron charge decay. Both ways are related with surface voltage of the sample. When the voltage is lower than a critical value, surface leakage contributes most. If the voltage is higher than this value, the electron energy on the surface of the sample exceeds the critical value and it is easy to cross the "deep trap". In this situation, the body leakage is more important, and the decay on the surface of sample speeds. That is why there exists decay curve crossing phenomenon.

Keywords

EN

52.80.-s; 81.05.Lg; 84.30.Jc

Discipline

• 84.30.Jc: Power electronics; power supply circuits(see also 84.70.+p High-current and high-voltage technology; for superconducting high-power technology, see 84.71.-b)
• 81.05.Lg: Polymers and plastics; rubber; synthetic and natural fibers; organometallic and organic materials(for polymers and organic materials in electrochemistry, see 82.45.Wx)
• 52.80.-s: Electric discharges(see also 51.50.+v Electrical properties of gases; for plasma reactions including flowing afterglow and electric discharges, see 82.33.Xj in physical chemistry and chemical physics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 6
• Pages: 1197-1200

Dates

published

2009-06

Contributors

author

L. Zhang

• Institute of Fluid Physics, CAEP, P.O. Box 919-150, Mianyang 621900, China

author

Z. Xu

• School of Electrical and Computer Science, Southampton University, Southampton, UK

author

G. Chen

• School of Electrical and Computer Science, Southampton University, Southampton, UK

References

• 1. M. Ieda, G. Sawa, U. Shinohara, Japan J. Appl. Phys. 6, 793 (1967)
• 2. D.K. Sas-Gupta, IEEE Trans. Electr. Insul. 25, 3 (1990)

Identifiers

DOI

10.12693/APhysPolA.115.1197