Characterization of the power relationship in laser bonding of linear low density polyethylene film to polypropylene using a commercial adhesive

C. F. Dowding, J. Lawrence

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This work investigates the effectiveness of using a 10.6 μm CO2 marking laser to activate a thermally sensitive adhesive in the bonding of a thin linear low density polyethylene film to a polypropylene substrate. The potential technical hurdle of bubbling has been witnessed and described, this prevented contact between the two and a viable bond. The Gaussian profile of the laser used caused the centre of the bond to be over irradiated whilst the edge was under-irradiated; this, limited the real area on which an effective bond was achieved. A bond strength of approximately 2.2 N/mm2 was achieved using the laser activated adhesive bonding technique described. There was little bond strength dependency upon laser irradiance once above a threshold level. An average peel force of 1.09 N was measured and the work demonstrated this technique is highly consistency.
Original languageEnglish
Title of host publicationProceedings of the 37th International MATADOR Conference
EditorsSrichand Hinduja, Lin Li
Place of PublicationLOndon
PublisherSpringer London
Pages445-448
Number of pages4
ISBN (Electronic)9781447144809
ISBN (Print)9781447144793, 9781447158592
DOIs
Publication statusPublished - 1 Dec 2013
Externally publishedYes

Keywords

  • CO2
  • laser marker
  • peel
  • thermal bonding

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