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Adhesion of blended polymer films

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journal contribution
posted on 21.06.2017 by C. Staszel, S. Sinha-Ray, A.L. Yarin, B. Pourdeyhimi
In this work, the adhesion energies of two dissimilar polymer films after thermal bonding are studied. The films were formed from the emulsions of polycaprolactone (PCL) and nylon-6 (N6) spin-coated onto metal substrates. After that, the solidified blend polymer films on the metal substrates were faced with additional PCL films on metal substrates and thermally bonded to them. The surface structure of blend films was elucidated prior to thermal bonding by staining them using Rhodamine B. The dye stained only N6 leaving PCL undyed and the exposed structure was analyzed using digital photography, which revealed the surface concentration of PCL, as well as the N6 and PCL distributions over the surfaces. It was discovered that PCL-N6 domains would remain partially mixed, influencing the adhesion energy measured.

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Publisher Statement

NOTICE: This is the author’s version of a work that was accepted for publication in Polymer. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Polymer, Volume 112, 10 March 2017, Pages 92–101 DOI: 10.1016/j.polymer.2017.01.066.

Publisher

Elsevier

issn

0032-3861

Issue date

10/03/2017

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