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Title: | Ethylene Vinyl Alcohol Copolymer (EVOH) as a Functional Barrier against Surrogate Components Migrating from Paperboard | Authors: | MAES, Caroline Yuki Junior, Giberto Mitsuyoshi Teniers, Cynthia Luyten, Wout Herremans, Geert PEETERS, Roos SAMYN, Pieter CARLEER, Robert BUNTINX, Mieke |
Issue Date: | 2019 | Source: | Journal of Chemistry, (Art N° 4180708) | Abstract: | Ethylene vinyl alcohol copolymer (EVOH) is a key material of interest as a functional barrier against substances migrating from recycled paperboard, due to its outstanding barrier properties. Three multilayer films containing two different grades of EVOH, L171B (3 µm) and F171B (3 and 5 µm), were benchmarked against a multilayer film containing polyamide 6/6.6 copolymer (PA 6/6.6, 3 µm) and monolayer polyethylene terephthalate (PET, 12 µm). The 5 films were evaluated as barrier materials against 5 surrogate substances simulating different migrants potentially present in recycled paperboard: n-heptadecane (C17) as a mineral oil-saturated hydrocarbon (MOSH), 4-methylbenzophenone (MBP) as a photoinitiator, di-n-propyl phthalate (DPP) as a plasticiser, and anthracene (ANT) and perylene (PER) as mineral oil aromatic hydrocarbons (MOAHs). The test was accelerated at 60°C for 25 days, which is equivalent to a shelf life of 2 years at 25°C. All films containing 3 or 5 µm EVOH were found to be good barriers, showing no breakthrough values over 1% of the initial concentration found in the paperboard, and they could easily compete with 12 µm PET. The multilayer with 3 µm PA 6/6.6 showed higher breakthrough values for both MBP and DPP than the other materials although still below the 1% threshold value. However, ANT showed substantial breakthrough values of nearly 2%, indicating that PA 6/6.6 might not offer enough protection against low-weight MOAH components. | Notes: | Buntinx, M (reprint author), Hasselt Univ, Packaging Technol Ctr IMO IMOMEC, Wetenschapspk 27, B-3590 Diepenbeek, Belgium mieke.buntinx@uhasselt.be | Keywords: | EVOH copolymer; Functional barrier; Mineral Oil; Paperboard; MOSH/MOAH migration; Permeability | Document URI: | http://hdl.handle.net/1942/27769 | ISSN: | 2090-9063 | e-ISSN: | 2090-9071 | DOI: | 10.1155/2019/4180708 | ISI #: | 000455769600001 | Rights: | Copyright 2019 Caroline Maes et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2020 |
Appears in Collections: | Research publications |
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4180708.pdf | Published version | 1.59 MB | Adobe PDF | View/Open |
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