High-field electrical properties of LDPE films prepared using new catalyst

K. Ishimatsu; C. Banmongkol; T. Mori; T. Mizutani; M. Ishioka

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https://doi.org/10.1109/ceidp....

Article . 2002 . Peer-reviewed

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https://dx.doi.org/10.1109/cei...

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High-field electrical properties of LDPE films prepared using new catalyst

descriptionPublicationkeyboard_double_arrow_right Article 22 Nov 2002Publisher:IEEEJournal:IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, volume 1, pages 154-157

Authors: K. Ishimatsu; C. Banmongkol; T. Mori; T. Mizutani; M. Ishioka;

doi: 10.1109/ceidp.1997.634582

High-field electrical properties of LDPE films prepared using new catalyst

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Abstract

New Low Density Polyethylene (m-LDPE) prepared using metallocene catalyst has a narrower composition distribution and a molecular weight distribution than Linear-Low Density Polyethylene (LLDPE) using Ziegler catalyst. We compared the electrical insulating properties of m-LDPE films and conventional LLDPE films. The high-field current of m-LDPE was found to be lower than that of LLDPE. The difference in current increased with the decrease of temperature. The high-field current was much suppressed in m-LDPE with a low melting point. The impulse breakdown strength of m-LDPE increased with the decrease of temperature. The insulating properties of m-LDPE with a low melting point were improved at 30/spl deg/C. These results were explained by a fact that m-LDPE with a low melting point includes more low-molecular-weight components.

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Nagoya University
Japan

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