http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Co^60-r선 조사에 따른 이축연신 폴리프로필렌 필름의 열자격전류 특성 변화
류부형,김민,김규백 동국대학교 경주대학 1997 東國論集 Vol.16 No.1
In order to investigate the Co^60-γ ray irradiation effects on the thermally stimulated current(TSC) characteristics of the biaxially-oriented polypropylene (BOPP) films, TSCs on the 15㎛ thick BOPP films before and after irradiation were observed in the temterature range of -120∼120℃ and at the forming electric field of 10, 30 and 60MV/m. Two distinguished peeaks such as β peak and α peak, the former was regarded as the depolarization process of dipoles on a amorphous region and the latter was attributed the thermally excited detrapping process of the trapped ions on a crystaline region in BOPP, were observed in the TSC spectra. From the observed results, the physical properties of γ-ray irradiated BOPP that are activation energy and relaxation time of charged particles, moment of dipole and forming field dependencies on TSC characteristics were analyzed and discussed.