Surface treatment of thermoplastic composites with an excimer laser

Hau Chung Man, M. Li, Tai Man Yue

Research output: Journal article publicationJournal articleAcademic researchpeer-review

18 Citations (Scopus)

Abstract

A high-power excimer laser (KrF, 248 nm) was used to treat the adherend surfaces of a glass-fibre-reinforced poly(butyl terephthalate) composite for the purpose of improving adhesion quality. Two joint geometries, the lap joint and the butt joint, were investigated. It was found that, with optimum process parameters, excimer laser can be used to etch away the polymer matrix selectively and leave the fibres undamaged. The surface morophology of the laser-treated surfaces was investigated. A large improvement in lap-joint and butt-joint strengths was achieved for laser-treated surfaces compared with untreated, chemical cleaned and abraded ones. The improvement was mainly attributed to the fibres that were protruding from the matrix after the laser surface treatment process.
Original languageEnglish
Pages (from-to)151-157
Number of pages7
JournalInternational Journal of Adhesion and Adhesives
Volume18
Issue number3
DOIs
Publication statusPublished - 1 Jan 1998

Keywords

  • A. epoxides
  • B. composites
  • B. surface treatment
  • C. destructive testing by lap-shear joints
  • D. adhesion by mechanical interlocking

ASJC Scopus subject areas

  • Biomaterials
  • Chemical Engineering(all)
  • Polymers and Plastics

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