Electret Stability Related to Spherulites in Polypropylene

Anders Thyssen; Kristoffer Almdal; Erik Vilain Thomsen

doi:10.1109/TDEI.2015.004891

Electret Stability Related to Spherulites in Polypropylene

Anders Thyssen, Kristoffer Almdal, Erik Vilain Thomsen

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Abstract

Electret charge stability has been related to the size of the spherulites in polypropylene. As the size of the spherulites is decreased the stability is increased. This is seen for isothermal conditions at 90 °C and 120 °C as well as for 90 % relative humidity at 50 °C. The charge release temperature is also increased in thermally stimulated voltage discharge experiments as the size of the spherulites is decreased. The size of the spherulites is controlled though the cooling rate from polypropylenes liquid state.

Original language	English
Journal	IEEE Transactions on Dielectrics and Electrical Insulation
Volume	22
Issue number	5
Pages (from-to)	2858-2863
ISSN	1070-9878
DOIs	https://doi.org/10.1109/TDEI.2015.004891
Publication status	Published - 2015

Keywords

Crystals
Electrets
Humidity measurement
Polypropylene films
Spherulite

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title = "Electret Stability Related to Spherulites in Polypropylene",

abstract = "Electret charge stability has been related to the size of the spherulites in polypropylene. As the size of the spherulites is decreased the stability is increased. This is seen for isothermal conditions at 90 °C and 120 °C as well as for 90 % relative humidity at 50 °C. The charge release temperature is also increased in thermally stimulated voltage discharge experiments as the size of the spherulites is decreased. The size of the spherulites is controlled though the cooling rate from polypropylenes liquid state.",

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AU - Thyssen, Anders

AU - Almdal, Kristoffer

AU - Thomsen, Erik Vilain

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AB - Electret charge stability has been related to the size of the spherulites in polypropylene. As the size of the spherulites is decreased the stability is increased. This is seen for isothermal conditions at 90 °C and 120 °C as well as for 90 % relative humidity at 50 °C. The charge release temperature is also increased in thermally stimulated voltage discharge experiments as the size of the spherulites is decreased. The size of the spherulites is controlled though the cooling rate from polypropylenes liquid state.

KW - Crystals

KW - Electrets

KW - Humidity measurement

KW - Polypropylene films

KW - Spherulite

U2 - 10.1109/TDEI.2015.004891

DO - 10.1109/TDEI.2015.004891

M3 - Journal article

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JO - IEEE Transactions on Dielectrics and Electrical Insulation

JF - IEEE Transactions on Dielectrics and Electrical Insulation

IS - 5

ER -

Electret Stability Related to Spherulites in Polypropylene

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