High Barrier, Biodegradable Nanocomposite Films Based on Clay-Coated and Chemically Modified Gum Kondagogu

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F22%3A00009682" target="_blank" >RIV/46747885:24620/22:00009682 - isvavai.cz</a>

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/10.1002/mame.202200008" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/mame.202200008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/mame.202200008" target="_blank" >10.1002/mame.202200008</a>

Result language

angličtina

Original language name

High Barrier, Biodegradable Nanocomposite Films Based on Clay-Coated and Chemically Modified Gum Kondagogu

Original language description

Lately, environmentally benign packaging materials with biodegradability, flexibility, and high barrier properties are sought after as a substitute for conventional plastic packaging materials due to increasing plastic pollution and microplastics in the environment. Although natural polymers can be sustainable alternatives to petro-sourced, non-biodegradable plastics, they suffer from the poor barrier and mechanical properties. In this study, a mechanically stable, biodegradable film of tree gum kondagogu with remarkable barrier properties is fabricated. The introduction of spray-coated, waterborne, large-aspect ratio sodium-hectorite dispersion on tree-gum films ensured very high barrier properties even at high relative humidity conditions (oxygen transmission rate (OTR) ≈1.7 cm3 m−2 day−1 bar−1 at 75% relative humidity). The coating not only decreases gas permeability through the films but also minimizes the sensitivity of performance to humidity levels. The clay-coated nanocomposite films outperformed various commercial polymers and are comparable to high-performance packaging films in terms of oxygen barrier properties. Further, the coating improved the mechanical properties of the films rendering them a prospective packaging material. These biodegradable, high-barrier and mechanically robust films are a promising advance in the field of sustainable packaging.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10404 - Polymer science

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Macromolecular Materials and Engineering

ISSN

1438-7492

e-ISSN

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Volume of the periodical

307

Issue of the periodical within the volume

8

Country of publishing house

DE - GERMANY

Number of pages

9

Pages from-to

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UT code for WoS article

000766418000001

EID of the result in the Scopus database

2-s2.0-85125994319