Dielectric Properties and Temperature Dependency of Humid PET Films with Interface

계면을 갖는 흡습된 PET필름의 유전특성과 온도의존성

In this paper, we were evaluated dielectric properties and temperature dependency in aging semifilm and PET film. According to humidity, dielectric properties of PET film increased, but tan $\delta$ presented a constant transition. According as temperature increased, tan $\delta$ increased from 1.9$\times$10$^{-3}$ to 2.76$\times$10$^{-3}$ and capacitance increased from 244.1(PF) to 297.5(PF).