Enhancement of breakdown strength of polyetherimide laminates

The breakdown strength of polymer laminates, polymer base films coated with thin layers of polyvinylidene fluoride (PVDF), was investigated. The PVDF film was coated using a spin coating technique. The DC breakdown strength was studied using an ASTM standard and could be increased by as much as 20%...

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Bibliographic Details
Published inProceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93) pp. 390 - 395
Main Authors Zheng, J.P., Cygan, P., Jow, T.R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1993
Subjects
Capacitors
Coatings
Dielectric materials
Electric breakdown
Electrodes
Laminates
Polymer films
Rough surfaces
Surface morphology
Surface roughness
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Summary:The breakdown strength of polymer laminates, polymer base films coated with thin layers of polyvinylidene fluoride (PVDF), was investigated. The PVDF film was coated using a spin coating technique. The DC breakdown strength was studied using an ASTM standard and could be increased by as much as 20% for the polyetherimide laminates. It was found that this breakdown strength was insensitive to the thickness of the polymer base films and the PVDF films. Other dielectric properties such as the dielectric constant dissipation factor were also studied for the samples with and without PVDF coatings. Possible mechanisms for the enhancement of breakdown strength are discussed.< >
ISBN:0780309669
9780780309661
DOI:10.1109/CEIDP.1993.378941