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 language | English |
|---|---|
| Title of host publication | Proceedings of the 37th International MATADOR Conference |
| Editors | Srichand Hinduja, Lin Li |
| Place of Publication | London |
| Publisher | Springer London |
| Pages | 445-448 |
| Number of pages | 4 |
| ISBN (Electronic) | 9781447144809 |
| ISBN (Print) | 9781447144793, 9781447158592 |
| DOIs | |
| Publication status | Published - 1 Dec 2013 |
| Externally published | Yes |
Keywords
- CO2
- laser marker
- peel
- thermal bonding