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Title: | Towards high-performance biopackaging: barrier and mechanical properties of dual-action polycaprolactone/zinc oxide nanocomposites | Authors: | ELEN, Ken Murariu, M. PEETERS, Roos Dubois, Ph MULLENS, Jules HARDY, An VAN BAEL, Marlies |
Issue Date: | 2012 | Publisher: | WILEY-BLACKWELL | Source: | POLYMERS FOR ADVANCED TECHNOLOGIES, 23 (10), p. 1422-1428 | Abstract: | The properties of nanocomposites of biodegradable polycaprolactone containing zinc oxide (ZnO) nanoparticles with diverse morphologies, that is, ZnO nanospheres, nanorods, and nanodisks are investigated. It is demonstrated for the first time that the dual action of the ZnO nanoparticles reduces the gas permeability of the nanocomposites via two mechanisms: first by the creation of a tortuous path and second by gas adsorption. Depending on the morphology of the particles, the oxygen permeability can be reduced by more than 60%. Tensile tests show that the nanocomposites remain very ductile. The nominal strain for all nanocomposites is higher than 500% before fracture occurs. The Young's modulus and tensile strength of the nanocomposites increase at higher ZnO concentrations. This behavior is more pronounced in the case of ZnO nanorods. As a result, the incorporation of ZnO nanoparticles into (bio)polymers provides an opportunity to manufacture polymer-based nanocomposite materials, resulting in the production of high-performance (bio)packaging. Copyright (C) 2011 John Wiley & Sons, Ltd. | Notes: | [Elen, K.; Mullens, J.; Hardy, A.; Van Bael, M. K.] Hasselt Univ, Inst Mat Res IMO Inorgan & Phys Chem, B-3590 Diepenbeek, Belgium. [Elen, K.; Peeters, R.] Verpakkingsctr, XIOS Hgsk Limburg, B-3590 Diepenbeek, Belgium. [Elen, K.; Hardy, A.; Van Bael, M. K.] IMEC VZW, Div IMOMEC, B-3590 Diepenbeek, Belgium. [Murariu, M.; Dubois, Ph] Univ Mons, Materia Nova Res Ctr, Ctr Innovat & Res Mat & Polymers CIRMAP, B-7000 Mons, Belgium. marlies.vanbael@uhasselt.be | Keywords: | Polymer Science; biodegradable polymer; nanocomposite; metal oxide; gas barrier; mechanical properties;biodegradable polymer; nanocomposite; metal oxide; gas barrier; mechanical properties | Document URI: | http://hdl.handle.net/1942/14295 | ISSN: | 1042-7147 | e-ISSN: | 1099-1581 | DOI: | 10.1002/pat.2062 | ISI #: | 000308876500012 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2013 |
Appears in Collections: | Research publications |
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