The power of cracks

Thomas van Oordt et al. from the Lab-on-a-Chip division describe the effect of ultrasonic welding parameters on the peel strength of polyethylene films and provide a practical guideline for a systematic adjustment of welding parameters.

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This study finds its application in packaging and enables the adjustment of peelable seals. The image which has been featured as a cover of Applied Polymer Science depicts the methods and results of the study: T-peel tests are applied on polyethylene strips, scanning electron microscopies illustrate peeled surfaces, and a three-dimensional analysis indicates the effect of the welder's amplitude and sealing time on the peel strength.

(2014), Back Cover, Volume 131, Issue 10. J. Appl. Polym. Sci., 131: n/a. doi: 10.1002/app.40267

Thomas van Oordt, Yannick Barb, Roland Zengerle, Felix von Stetten: Lamination of polyethylene composite films by ultrasonic welding: Investigation of peel behavior and identification of optimum welding parameters.

See Journal of Applied Polymer Science

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