Functional Chitosan-Calcium Carbonate Coatings for Enhancing Water and Fungal Resistance of Paper Materials

The objective of this study was to increase the water resistance of paper while providing fungal resistance using a bio-based coating made from chitosan. The water resistance was improved through the surface control of roughness using modified calcium carbonate particles. The higher the quantity of...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2022-12, Vol.27 (24), p.8886
Main Authors: Goué, Erwan Le, Ham-Pichavant, Frédérique, Grelier, Stéphane, Remy, Jordan, Coma, Véronique
Format: Article
Language:English
Subjects:
Antifungal activity
Antifungal agents
Antifungal Agents - pharmacology
Antimicrobial agents
Bicarbonate
Bicarbonates
Calcium Carbonate
Cellulose
Chaetomium globosum
Chemical Sciences
Chitosan
Chitosan - pharmacology
Coatings
Contact angle
Deformation
Fatty acids
Fungi
Fungicides
Hydrophobic and Hydrophilic Interactions
Hydrophobicity
Investigations
Polymers
stearic acid
Water
Water resistance
Wetting
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Summary:The objective of this study was to increase the water resistance of paper while providing fungal resistance using a bio-based coating made from chitosan. The water resistance was improved through the surface control of roughness using modified calcium carbonate particles. The higher the quantity of particles in the film-forming solution, the higher the surface hydrophobicity of the paper. The addition of particles was found to counterbalance the chitosan hydrophilicity through the control of the coatings' penetration in the paper bulk. As a consequence, the wetting time and liquid water resistance were enhanced. The antifungal activity of the film-forming solutions and coated paper was also investigated against the growth of , which was selected as a model strain able to contaminate paper materials. The results reveal that the antifungal activity of chitosan was improved by a possible synergic effect with the bicarbonate ions from the mineral particles.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules27248886