Multiscale Modeling of Permittivity of Polymers With Aging: Analysis of Molecular Scale Properties and Their Impact on Electrical Permittivity
نویسندگان
چکیده
This work presents an innovative model for the derivation of permittivity evolution polyethylene (PE)-based materials with aging. First, microscale contributions to real methylene unit [constitutive repetitive (CRU) PE] and its oxidation products, that is, ketones hydroperoxides, in solid state is presented. Then, a chemical kinetic recalled predicting concentration, under proper hypotheses, oxidized species created during polymer The proposed combines concentrations products respective contribution permittivity, providing trend Results depict good agreement experimental data, validating model.
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ژورنال
عنوان ژورنال: IEEE Transactions on Dielectrics and Electrical Insulation
سال: 2022
ISSN: ['1070-9878', '1558-4135']
DOI: https://doi.org/10.1109/tdei.2022.3193869