Show item record

dc.contributor.authorDi Mauro, Eduardo
dc.contributor.authorLi, Xinda
dc.contributor.authorPellerin, Christian
dc.contributor.authorCicoira, Fabio
dc.contributor.authorSantato, Clara
dc.publisherInstitute of Electrical and Electronics Engineersfr
dc.subjectMelanin free acidfr
dc.subjectLinear low-density polyethylenefr
dc.titleSmart packaging in the sustainability challenge : eumelanin as a UV-absorption enhancer of polymersfr
dc.contributor.affiliationUniversité de Montréal. Faculté des arts et des sciences. Département de chimiefr
dcterms.abstractThe black-brown biopigment eumelanin screens the harmful ultraviolet (UV) radiation in the human skin. In industry, the absorption of plastics in the UV range is improved by the inclusion of additives. Our work reports an evaluation of the biopigment eumelanin as a nature-inspired additive for polymers to improve their UV-absorption. Eumelanin, being non-toxic and produced by natural sources, represents an interesting candidate for sustainable plastic additives. We fabricated eumelanin-including films of commercial linear low-density polyethylene (LLDPE), a plastic ubiquitous in packaging applications. The films were obtained by melt-compounding and compression molding. The melanin free acid treatment (MFA) was used to enhance the biopigment dispersion in the films. We observed that amounts of eumelanin as low as 0.8% wt. bring about an increase of the UV absorption up to one order of magnitude in the UVA range. We also assessed the effect of eumelanin on the film stability under prolonged UV irradiation: the biopigment proved to work both as UV-absorption enhancer but also as a photo-prooxidant, as inferred by thermogravimetric analysis (TGA) and infrared (IR)
UdeM.VersionRioxxVersion acceptée / Accepted Manuscriptfr
oaire.citationTitleIEEE Transactions on nanotechnologyfr

Files in this item


This item appears in the following Collection(s)

Show item record

This document disseminated on Papyrus is the exclusive property of the copyright holders and is protected by the Copyright Act (R.S.C. 1985, c. C-42). It may be used for fair dealing and non-commercial purposes, for private study or research, criticism and review as provided by law. For any other use, written authorization from the copyright holders is required.