Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5344
Title: Barrier Properties of Corn Zein Nanocomposite Coated Polypropylene Films for Food Packaging Applications
Authors: Özçalık, Onur
Tıhmınlıoğlu, Funda
Keywords: Barrier properties
Biopolymer
Corn zein
Nanocomposite coating
Polypropylenes
Plastic films
Publisher: Elsevier Ltd.
Source: Özçalık, O., and Tıhmınlıoğlu, F. (2013). Barrier properties of corn zein nanocomposite coated polypropylene films for food packaging applications. Journal of Food Engineering, 114(4), 505-513. doi:10.1016/j.jfoodeng.2012.09.005
Abstract: The feasibility of corn zein nanocomposite (CZNC) coatings as an alternative to synthetic polymer barrier layer on polypropylene (PP) films was examined. The effect of layered silicate content in the CZNC layers on the barrier and surface hydrophobicity of the CZNC-PP films were investigated. Incorporation of organomodified montmorillonite (OMMT) by solution intercalation into zein matrix significantly improved oxygen and water vapor barrier of coated PP films. The barrier properties were also investigated theoretically by using various phenomenological permeability models. Tortuous permeation path formed by the fine delamination of nanoclays was found to be responsible for the barrier improvements in zein layers. In conclusion, durable CZNC-PP laminates were developed. CZNC coating of PP films has reduced the oxygen permeability nearly four times, while water vapor permeability reduced by 30% with 5 wt.% OMMT content in 5.9 μm corn zein coating.
URI: http://doi.org/10.1016/j.jfoodeng.2012.09.005
http://hdl.handle.net/11147/5344
ISSN: 0260-8774
0260-8774
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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