Surface pretreatment of glass fiber-reinforced liquid crystalline polymer composites by excimer laser for adhesive bonding

Hau Chung Man, M. Li, Tai Man Yue

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)

Abstract

This paper reports the results of using a new laser surface pretreatment technique to improve the strength of adhesive joints. A high power KrF excimer laser at 248 nm output was used to surface-treat a glass fiber-reinforced liquid crystalline polymer (LCP) composite. With optimumprocess parameters, the polymer matrix at the surface was etched away efficiently and the bare fibers anchored on the matrix were left dangling and undamaged. The surface morphology produced by this new technique resulted in high quality adhesive joints. Both lap-joint and butt-joint configurationswere investigated. A 350% improvement in the butt-joint strength was achieved by this new pretreatment technique as compared with that of the untreated one.
Original languageEnglish
Pages (from-to)183-194
Number of pages12
JournalJournal of Adhesion Science and Technology
Volume11
Issue number2
DOIs
Publication statusPublished - 1 Jan 1997

Keywords

  • Adhesive bonding
  • Excimer laser
  • Glass fiber LCP
  • Polymer composite
  • Surface treatment

ASJC Scopus subject areas

  • Chemistry(all)
  • Mechanics of Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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