Making Protein-Based Adhesives Water Resistant: Role of Protein Water Solubility, Galloyl Modification, and Complexation

Saeed Zajforoushan Moghaddam*, Runtian Qie, Esben Thormann*

*Corresponding author for this work

Research output: Contribution to journalLetterResearchpeer-review

Abstract

There has been an ongoing interest in using proteins as more environmentally friendly substitutes for the existing synthetic adhesives. Poor water resistance is a particular shortcoming of protein-based adhesives, which negatively affects their outdoor functionality. In this study, we systematically investigated if water solubility of the protein, addition of a phenolic compound such as tannic acid, and protein-polyphenol complexation could improve the water resistance of protein-based adhesives. It was found that the synergetic effects of these parameters can yield commercial-level water resistance.
Original languageEnglish
JournalAcs Applied Polymer Materials
Volume4
Issue number1
Pages (from-to)18–23
Number of pages6
ISSN2637-6105
DOIs
Publication statusPublished - 2022

Keywords

  • Protein-based adhesive
  • Biomimetic
  • Water resistance
  • Zein
  • Tannic acid

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