Water-cooled non-thermal gliding arc for adhesion improvement of glass-fibre-reinforced polyester

Yukihiro Kusano, Bent F. Sørensen, Tom Løgstrup Andersen, Helmuth Langmaack Toftegaard, Frank Leipold, Mirko Salewski, Zhiwei Sun, Jiajian Zhu, Zhongshan Li, Marcus Alden

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

A non-equilibrium quenched plasma is prepared using a gliding-arc discharge generated between diverging electrodes and extended by a gas flow. It can be operated at atmospheric pressure and applied to plasma surface treatment to improve adhesion properties of material surfaces. In this work, glass-fibre-reinforced polyester plates were treated using an atmospheric pressure gliding-arc discharge with air flow to improve adhesion with a vinylester adhesive. The electrodes were water-cooled so as to operate the gliding arc continually. The treatment improved wettability and increased the density of oxygen-containing polar functional groups on the surfaces. Double cantilever beam specimens were prepared for fracture mechanic characterization of the laminate adhesive interface. It was found that gliding-arc treatment significantly increases the fracture resistance in comparison with a standard peel-ply treatment.
Original languageEnglish
JournalJournal of Physics D: Applied Physics
Volume46
Issue number13
Pages (from-to)135203
ISSN0022-3727
DOIs
Publication statusPublished - 2013

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