Influence of Dielectric Barrier Discharge Cold Plasma Treatment on Starch, Gelatin, and Bacterial Cellulose Biodegradable Polymeric Films

The environmental damage caused by plastic packaging and the need to reduce pollution requires actions to substitute plastic materials for more sustainable and biodegradable materials. Starch, gelatin, and bacterial cellulose films are three potential biodegradable polymeric films for use in packagi...

Full description

Saved in:
Bibliographic Details
Published in:Polymers 2022-11, Vol.14 (23), p.5215
Main Authors: Goiana, Mayara Lima, Mattos, Adriano Lincoln Albuquerque, de Azeredo, Henriette Monteiro Cordeiro, de Freitas Rosa, Morsyleide, Fernandes, Fabiano André Narciso
Format: Article
Language:English
Subjects:
Additives
Bacteria
Biodegradability
Cellulose
Cellulosic resins
Chemical properties
Cold
Cold plasmas
Cold treatment
Dielectric barrier discharge
Dielectric films
Electric discharges
Excitation
Gelatin
Glycerol
Hydrophobicity
Influence
Mechanical properties
Methods
Moisture absorption
Morphology
Packaging
Plasma
Polyesters
Polymer films
Polymers
Starch
Thin films
Water resistance
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The environmental damage caused by plastic packaging and the need to reduce pollution requires actions to substitute plastic materials for more sustainable and biodegradable materials. Starch, gelatin, and bacterial cellulose films are three potential biodegradable polymeric films for use in packaging. However, these materials need improvements in their physical, chemical, and mechanical properties to be used in packaging. In this work, these films were treated with cold plasma to evaluate the effects of treatment conditions on several physical, chemical, and mechanical properties. The dielectric barrier discharge plasma technology was applied with varying treatment times (0 to 20 min) and excitation frequencies (50 to 900 Hz) at 20 kV. The optimal excitation frequency for starch films (50 Hz) was different from the optimal frequency for gelatin and bacterial cellulose films (900 Hz), indicating a high dependency on the treatment in this variable that is often neglected. Plasma treatment improved the hydrophobicity, surface morphology, water resistance, and mechanical properties of all three films, with the advantage of not recurring to chemical or biological additives.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym14235215