Title :
The compensation law and polymer aging and relaxations
Author :
Crine, Lean-Pierre
Author_Institution :
Hydro-Quebec Recherche, Varennes, Que., Canada
Abstract :
It has been shown previously by the author (1957, 1984) that the relaxation of polyethylene (PE) can be well described by the rate theory. It is shown here that the rate theory applies to aging at temperatures below the melting temperature. It is also shown that the aging process has different energy parameters on the two sides of a thermodynamic transition. The importance of performing accelerated aging tests within the appropriate temperature range is stressed
Keywords :
ageing; dielectric relaxation; electric breakdown of solids; entropy of substances; free energy; organic insulating materials; polymers; compensation law; dielectric; enthalpy; entropy; melting temperature; polyethylene; polymer aging; rate theory; relaxation; thermodynamic transition; Aging; Entropy; Equations; Morphology; Polyethylene; Polymers; Temperature; Thermal expansion; Thermodynamics;
Conference_Titel :
Conduction and Breakdown in Solid Dielectrics, 1989., Proceedings of the 3rd International Conference on
Conference_Location :
Trondheim
DOI :
10.1109/ICSD.1989.69213
