Modified Molecular Chain Displacement Analysis Employing Electro-Mechanical Threshold Energy Condition for Direct Current Breakdown of Low-Density Polyethylene
Abstract
:1. Introduction
2. Analysis Setup and Test Conditions
3. Analysis of Space Charge Transport and Electric Field Distribution
3.1. Bipolar Charge Transport Model
3.2. Heat Transfer Model
3.3. Characteristics of Space Charge Transport Resulting in the Maximum Electric Field Strength
4. Prediction of Breakdown Strength with Electro-Mechanical Threshold Energy Condition
4.1. Modified Molecular Chain Displacement Model
4.2. Analysis Results of Breakdown Strength
5. Discussion
6. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Abbreviations
CT | Constant temperature |
CV | Constant voltage |
FEF | Field enhancement factor |
MCD | Molecular chain displacement |
M-MCD | Modified molecular chain displacement |
PRV | Polarity-reversal voltage |
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Applied Voltage | Temperature (°C) | |
---|---|---|
Constant | Gradient (Anode-Cathode) | |
One-directional constant voltage (CV) | 30 (@CT30) 50 (@CT50) 70 (@CT70) | Heated Anode 30~50 (@GT-A1) 30~70 (@GT-A2) 50~70 (@GT-A3) Heated Cathode 50~30 (@GT-C1) 70~30 (@GT-C2) 70~50 (@GT-C3) |
Polarity-reversal voltage (PRV) | 30 (@CT30) 50 (@CT50) 70 (@CT70) | 30~50 (@GT-1) 30~70 (@GT-2) 50~70 (@GT-3) |
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Kim, M.; Lee, S.-H. Modified Molecular Chain Displacement Analysis Employing Electro-Mechanical Threshold Energy Condition for Direct Current Breakdown of Low-Density Polyethylene. Polymers 2021, 13, 2746. https://doi.org/10.3390/polym13162746
Kim M, Lee S-H. Modified Molecular Chain Displacement Analysis Employing Electro-Mechanical Threshold Energy Condition for Direct Current Breakdown of Low-Density Polyethylene. Polymers. 2021; 13(16):2746. https://doi.org/10.3390/polym13162746
Chicago/Turabian StyleKim, Minhee, and Se-Hee Lee. 2021. "Modified Molecular Chain Displacement Analysis Employing Electro-Mechanical Threshold Energy Condition for Direct Current Breakdown of Low-Density Polyethylene" Polymers 13, no. 16: 2746. https://doi.org/10.3390/polym13162746