Rapid determination of thermal endurance of PETP film combining sensitive reaction rate measurements and conventional aging tests

P. Paloniemi, B. Fallou, Knut Herstad, J. Sletbak, Paul Lindström

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Abstract

Thermal aging processes in polyethylene terephthalate film (PETP) were investigated in three laboratories in France, Finland and Norway, using both sensitive analytical methods to measure the aging reaction rates and physical aging tests of conventional nature. The known non-linearity [9] of the thermal endurance graph of this material was confirmed at ca. 180°C. In spite of this, the behavior of the material was predictable, especially when the EAP test method [3] was applied. Analytical methods combined with suitable physical aging tests were shown to be rapid tools for investigating the long term thermal endurance of materials in short time.
Original languageEnglish
Pages (from-to)599 - 607
Number of pages9
JournalIEEE Transactions on Electrical Insulation
VolumeEI-21
Issue number4
DOIs
Publication statusPublished - 1986
MoE publication typeNot Eligible

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