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Open AccessArticle
Stabilization of Fish Protein-Based Adhesive by Reduction of Its Hygroscopicity
by
Branka Mušič
Branka Mušič 1
,
Jaka Gašper Pečnik
Jaka Gašper Pečnik 2
and
Andreja Pondelak
Andreja Pondelak 1,*
1
Slovenian National Building and Civil Engineering Institute, Dimičeva ulica 12, 1000 Ljubljana, Slovenia
2
InnoRenew CoE, Livade 6, 6310 Izola, Slovenia
*
Author to whom correspondence should be addressed.
Polymers 2024, 16(15), 2195; https://doi.org/10.3390/polym16152195 (registering DOI)
Submission received: 20 June 2024
/
Revised: 25 July 2024
/
Accepted: 30 July 2024
/
Published: 1 August 2024
Abstract
Protein-based fish adhesives have historically been used in various bonding applications; however, due to the protein’s high affinity for water absorption, these adhesives become destabilized in high-moisture environments, resulting in reduced bondline strength and early failure. This limitation makes them unsuitable for industrial applications with higher demands. To address this issue, water-insoluble raw powder materials such as iron, copper, or zeolite were incorporated into natural fish adhesives. In this study, the hygroscopicity, dry matter content, thermal analysis (TGA/DSC), FT-IR spectroscopy, surface tension measurements, vapour permeability, and scanning electron microscope (SEM) of the modified adhesives were determined. In addition, the bonding properties of the modified adhesives were evaluated by the tensile shear strength of the lap joints, and mould growth was visually inspected. The resulting modified protein-based adhesives demonstrated improved stability in high humidity environments. Enhancing the hygroscopic properties of protein-based fish adhesives has the potential to unlock new opportunities and applications, providing a healthier and more environmentally sustainable alternative to petroleum-based adhesives.
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MDPI and ACS Style
Mušič, B.; Pečnik, J.G.; Pondelak, A.
Stabilization of Fish Protein-Based Adhesive by Reduction of Its Hygroscopicity. Polymers 2024, 16, 2195.
https://doi.org/10.3390/polym16152195
AMA Style
Mušič B, Pečnik JG, Pondelak A.
Stabilization of Fish Protein-Based Adhesive by Reduction of Its Hygroscopicity. Polymers. 2024; 16(15):2195.
https://doi.org/10.3390/polym16152195
Chicago/Turabian Style
Mušič, Branka, Jaka Gašper Pečnik, and Andreja Pondelak.
2024. "Stabilization of Fish Protein-Based Adhesive by Reduction of Its Hygroscopicity" Polymers 16, no. 15: 2195.
https://doi.org/10.3390/polym16152195
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