Thermal and Oxygen Barrier Properties of Chitosan Bionanocomposites by Reinforcement of Calcium Carbonate Nanopowder

Abstract We compared the performance of bio-based and biodegradable polymers for packaging applications. Cost-effective inorganic fillers (talc, kaolin and calcium carbonate) were first melt-compounded with polylactic acid (PLA), poly(butylene adipate-co-terephthalate) (PBAT) and poly(hydroxy butyrate-co-valerate) (PHBV). Following this, injection- and compression-molded specimens were produced to test the effect of filler loading (0–30 wt%) in relation to the morphological, thermal, mechanical and barrier properties of the composites. All the fillers were homogeneously dispersed in the polymer matrices and suitable polymer–filler adhesion was observed for talc and kaolin. The elastic modulus increased at the expense of a reduced tensile and elongation. The most significant improvements in water vapor and oxygen barrier properties were achieved with talc in PLA, PBAT and PHBV films. Overall, the results point to the promise of the introduced compositions for food packaging materials.

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Bioplastic films with unusually good oxygen barrier properties based on potato fruit-juice

RSC Advances ◽

10.1039/d1ra01178b ◽

2021 ◽

Vol 11 (21) ◽

pp. 12543-12548

Author(s):

Simi Poulose ◽

Ilari Jönkkäri ◽

Mikael S. Hedenqvist ◽

Jurkka Kuusipalo

Keyword(s):

Waste Management ◽

Industrial Waste ◽

Fruit Juice ◽

Potato Starch ◽

Barrier Properties ◽

Oxygen Barrier ◽

Industrial Waste Management ◽

Starch Industry

Valorization of potato fruit juice, a potato starch industry by-product, by developing biopolymer films that could replace petroleum based alternatives in packaging, providing a greener and sustainable solution to industrial waste management.

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Improving the oxygen barrier properties of polyethylene terephthalate by graphite nanoplatelets

Journal of Applied Polymer Science ◽

10.1002/app.38302 ◽

2012 ◽

pp. n/a-n/a ◽

Cited By ~ 13

Author(s):

Ahmad Al-Jabareen ◽

Hammam Al-Bustami ◽

Hannah Harel ◽

Gad Marom

Keyword(s):

Polyethylene Terephthalate ◽

Barrier Properties ◽

Oxygen Barrier ◽

Graphite Nanoplatelets

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A study of the barrier properties of polyethylene coated with a nanocellulose/magnetite composite film

Journal of the Serbian Chemical Society ◽

10.2298/jsc151217019d ◽

2016 ◽

Vol 81 (5) ◽

pp. 589-605 ◽

Cited By ~ 2

Author(s):

Nenad Djordjevic ◽

Aleksandar Marinkovic ◽

Jasmina Nikolic ◽

Sasa Drmanic ◽

Milica Rancic ◽

...

Keyword(s):

Surface Modification ◽

Maleic Anhydride ◽

Hybrid Materials ◽

Significant Contribution ◽

Barrier Properties ◽

Chemical Activity ◽

Low Density Polyethylene ◽

Low Density ◽

Oxygen Barrier ◽

Magnetite Layer

The morphological, thermal and barrier properties of low-density polyethylene/polycaprolactone-modified nanocellulose hybrid materials were investigated in this paper. Nanonocelulose/magnetite (NC-Fe3O4) nanocomposite and maleic acid functionalized NC/magnetite (NCMA-Fe3O4) nanocomposite were prepared and used as filler at various concentrations (5, 10 and 15 wt. %) in polycaprolactone (PCL) layer. PE was coated with PCL/NC/magnetite layer. The addition of the filler did not unfavorably affect the inherent properties of the polymer, especially its barrier properties. Oxygen permeation measurements show that the oxygen barrier properties of magnetite enriched PCL film were improved due to chemical activity of added material. The highest level of barrier capacity was observed for PE samples coated with PCL based composite with NCMA-Fe3O4 micro/-nanofiller, which implies the significant contribution of nanocellulose surface modification with maleic anhydride residue to improved barrier properties.

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