Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Estimation of Dipole Ploarization in Polypropylene Irradiated with Ultra-Violet Rays

자외선 조사된 폴리프로필렌의 쌍극자분극의 평가

  • Published : 2000.10.13
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Abstract

In this paper, Thermally Stimulated Current(TSC) spectrum has been measured in oriented polypropylene of thickness of $40{\mu}m$ which was irradiated by Ultraviolet Ray. As a result of the investigation, four peaks have been observed-two peaks ($A_1$, $A_2$) were appeared in low temperature region($-20{\sim}20^{\circ}C$) and other two peaks ($B_1$, $B_2$) in high temperature region($80{\sim}120^{\circ}C$). Among four peaks $A_1$ and $A_2$ have bee observed in detail. These peaks are shown to be created due to the polarization of diploes from the experimental results which were measured as a function forming voltage, forming time, collecting voltage and heating rate. As the increase of irradiated-time by Ultraviolet ray, the number of dipoles was increased.

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