Multistress aging of polymer films. [Polyethylene Terephthalate and Polyimide]
TL;DRAbstract
An experimental facility has been developed in which polymer film specimens can be simultaneously exposed to mechanical, electrical, and thermal stresses. The test environment is transformer oil at 90/degree/C. The mechanical stress can be varied over a wide range, and the potential is regulated at about one-half the breakdown voltage. The facility can accommodate eight specimens run at the same time at various mechanical stresses, with or without an applied potential. The temperature of all eight specimens must be the same, and the applied potential must either be zero or the same value. 1 ref., 7 figs., 2 tabs.
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An experimental facility has been developed in which polymer film specimens can be simultaneously exposed to mechanical, electrical, and thermal stresses. The test environment is transformer oil at 90/degree/C. The mechanical stress can be varied over a wide range, and the potential is regulated at about one-half the breakdown voltage. The facility can accommodate eight specimens run at the same time at various mechanical stresses, with or without an applied potential. The temperature of all eight specimens must be the same, and the applied potential must either be zero or the same value. 1 ref., 7 figs., 2 tabs.
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