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Poly(ethylene terephthalate)
(2001. 6. 8. / 2001. 9. 1. )
Effects of Plasma Surface Treatment on Electrical and Mechanical Properties of Poly(ethylene terephthalate) Films
Kyung-Bum LimDuck-Chool LeeDepartment of Electrical Engineering, Inha University
(Received June 8, 2001 / Accepted September 1, 2001)
Abstract : In this study, the electrical and mechanical characteristics of PET films were analyzed after plasma surfacetreatment. After plasma treatment, the surface potential decay, surface resistivity, and dielectric property were evaluatedto analyze the electrical insulating property, and the tensile strength was measured as the mechanical characteristic. When plasma treatment was conducted for less than 10 minutes, it was found that the electrical insulating property was improved through evaporation of low molecular weight materials and cleaning of surface. However, for more than 10minutes, the insulating property of plasma treated PET films was decreased due to excessive discharge energy. The tensile strength was hardly changed by plasma treatment.Key Words : PET films, plasma treatment, electrical insulating property, mechanical characteristic
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To whom correspondence should be addressed.kblim69@hanmail.net
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Journal of the KIIS, Vol. 16, No. 3, 200162
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Poly(ethylene terephthalate)
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Journal of the KIIS, Vol. 16, No. 3, 200164
Fig. 1. Schematic diagram of corona discharge apparatus
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Poly(ethylene terephthalate)
, 16 3, 2001 65
Fig. 4. The effect plasma treatment time on surface potential decay of PET films
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Journal of the KIIS, Vol. 16, No. 3, 200166
Fig. 6. Relative dielectric constant versus frequency of plasma treated PET films
Fig. 7. Tensile strength versus plasma treatment time of PET films
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