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Title: Mineral oil barrier sequential polymer treatment for recycled paper products in food packaging
Authors: Paul, Uttam C.
Fragouli, Despina
Bayer, Ilker S.
Mele, Elisa
Conchione, Chiara
Cingolani, Roberto
Moret, Sabrina
Athanassiou, Athanassia
Keywords: Recycled paperboard
Food packaging
Mineral oil migration
Water resistance
Issue Date: 2017
Publisher: © IOP Publishing Ltd
Citation: PAUL, U.C. ... et al, 2017. Mineral oil barrier sequential polymer treatment for recycled paper products in food packaging. Materials Research Express, 4 (1), 015501.
Abstract: Recycled cellulosic paperboards may include mineral oils after the recycle process, which together with their poor water resistance limit their use as food packaging materials. In this work, we demonstrate that a proper functionalization of the recycled paper with two successive polymer treatments, imposes a mineral oil migration barrier and simultaneously renders it waterproof and grease resistant, making it an ideal material for food contact. The first poly (methyl methacrylate) treatment penetrates the paper network and creates a protective layer around every fiber, permitting thus the transformation of the paperboard to a hydrophobic material throughout its thickness, reducing at the same time the mineral oil migration. Subsequently, the second layer with a cyclic olefin copolymer fills the open pores of the surface, and reduces the mineral oil hydrocarbons migration at levels below those proposed by the BMEL. Online liquid chromatography-gas chromatography coupled with flame ionization detection quantitatively demonstrate that this dual functional treatment prevents the migration of both saturated (mineral oil saturated hydrocarbons) and aromatic hydrocarbon (mineral oil aromatic hydrocarbons) mineral oils from the recycled paperboard to a dry food simulant.
Description: This paper is closed access.
Sponsor: The authors sincerely acknowledge the Reno De Medici SpA (RDM)Italy, for providing the financial support of this project.
Version: Submitted for publication
DOI: 10.1088/2053-1591/4/1/015501
URI: https://dspace.lboro.ac.uk/2134/36684
Publisher Link: https://doi.org/10.1088/2053-1591/4/1/015501
Appears in Collections:Closed Access (Materials)

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