Investigation of surface damage resulting from static charging of moulded plastic components
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(Published version)
Date
1999
Authors
Taylor, Paul James
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thesis
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Abstract
Static Charging or Contact Electrification occurs on the separation from intimate contact of materials of dissimilar properties. The amount of charge transferred is dependent on, amongst other things, the contact potential difference between the materials. While a great deal of work has been performed in the past investigating contact electrification, variability in contacts from sample to sample has led to difficulty in providing a fundamental understanding of the process. The investigation here is concerned with surface damage to a plastic component (a spectacle lens), which results from contact electrification. The component in question is cast between two crown glass moulds. After curing, the moulds adhere strongly to the plastic requiring significant leverage to separate them. When separation occurs in the dark, a flash of light is often seen.
School/Discipline
University of South Australia School of Chemical Technology
School of Chemical Technology
School of Chemical Technology
Dissertation Note
Thesis (PhD)--University of South Australia, 1999
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