Monitoring of Polyurethane Penetration into Alumina Coating by Raman Spectroscopy

descriptionPublicationkeyboard_double_arrow_right Conference object , Other literature type , Article 01 Jan 2023 English Publisher:ZenodoFunded by:EC | TERMINUS

Authors: Matijošius, Tadas; Ignatjev, Ilja; Asadauskas, Svajus J.;

doi: 10.5281/zenodo.8204881 , 10.5281/zenodo.8204883

Monitoring of Polyurethane Penetration into Alumina Coating by Raman Spectroscopy

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Abstract

Polyurethanes are extensively used as adhesives and sealants in laminated packaging, aluminum (Al) foils, cans, sheets, etc. Usually PUR is obtained from hydroxy-terminated macrodiols and isocyanates. Adhesion of PUR to metals has great importance for the recycling of metallized multi-layer packaging. In this study, Raman spectroscopy was used to evaluate the penetration of PUR components into anodic Al coating, since many Al foils are partially anodized to enhance durability and adhesion.

Keywords

Polyurethane, Raman spectroscopy

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