NDLI: The role of oxidation in the water treeing progress in low density polyethylene (LDPE)

Content Provider	IEEE Xplore Digital Library
Author	Li, H. Crichton, B.H. Fouracre, R.A. Given, M.J. Liang, Y.
Copyright Year	1993
Description	Author affiliation: Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK (Li, H.; Crichton, B.H.; Fouracre, R.A.; Given, M.J.)
Abstract	In an attempt to understand ion specific properties and the significance of oxidation in the water treeing process, an experimental examination of oxidation and tree growth in LDPE has been undertaken. In a series of water tree growth tests, conditions promoting oxidation were present either during or prior to tree development. FTIR (Fourier-transform infrared) techniques were employed to assess any oxidation occurring during tree growth in samples aged in the laboratory using ionic solutions of FeCl/sub 3/, KMnO/sub 4/, or LiCl. The lengths of trees grown in virgin and pre-oxidized LDPE using a LiCl solution have been compared. Neither enhanced tree growth nor significant oxidation was observed for LDPE samples aged in strong oxidizing solutions of FeCl/sub 3/ and KMnO/sub 4/. This shows that oxidation is not responsible for the observed tree growth characteristics. Reduced water tree growth was observed in highly oxidized material, indicating that the presence of such material is not significant in the water treeing process and that thermal oxidation alone is unlikely to be important during treeing.<>
Starting Page	707
Ending Page	712
File Size	324875
Page Count	6
File Format	PDF
ISBN	0780309669
DOI	10.1109/CEIDP.1993.378890
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-10-17
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Oxidation Polyethylene Aging Trees - insulation Rough surfaces Surface roughness Electrodes Voltage Polymer films Sheet materials
Content Type	Text
Resource Type	Article

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