Antifungal Paper Based on a Polyborneolacrylate Coating

Area of Science:

• Materials Science
• Microbiology
• Conservation Science

Background:

• Paper products are vulnerable to fungal biodeterioration, leading to damage.
• Existing antimicrobial treatments pose health risks and can harm paper properties.
• There is a need for safe, effective, and economical antifungal solutions for paper.

Purpose of the Study:

• To develop and evaluate a novel antifungal coating for paper using surface stereochemistry.
• To assess the efficacy of polyborneolacrylate (PBA) against common paper-degrading fungi.
• To determine the impact of PBA coating on paper's physicochemical and inking properties.

Main Methods:

• A thin layer of polyborneolacrylate (PBA) was applied to paper surfaces.
• Coated paper samples were challenged with airborne fungi, including Aspergillus niger and Penicillium sp.
• Physicochemical properties (whiteness, pH, mechanical strength) and inking performance were analyzed post-coating.

Main Results:

• A 10% PBA coating concentration (19-μm infiltration) effectively prevented fungal growth and kept paper spotless.
• PBA coating significantly inhibited fungal spore germination.
• Coated paper exhibited only minor, acceptable changes in whiteness, pH, mechanical strength, and inking.

Conclusions:

• Polyborneolacrylate (PBA) offers a safe, rapid, and cost-effective antifungal solution for paper products.
• The PBA coating demonstrates broad-spectrum efficacy against common paper-degrading fungi.
• This method shows significant potential for preserving paper integrity and extending the lifespan of paper products.