A Biomimetic Water-Resistant Adhesive Based on ϵ-Polylysine/Tannic Acid Complexation

Junjie Kang; Saeed Zajforoushan Moghaddam; René Wugt Larsen; Esben Thormann

doi:10.1021/acsapm.3c01400

A Biomimetic Water-Resistant Adhesive Based on ϵ-Polylysine/Tannic Acid Complexation

Junjie Kang, Saeed Zajforoushan Moghaddam, René Wugt Larsen, Esben Thormann^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

This study investigates the potential of combining ϵ-polylysine and tannic acid to develop bio-based adhesives with enhanced water resistance. The two biomolecules exhibited complexation/precipitation in aqueous solutions in the pH range of 5-9. Water-based adhesives were prepared using complexes formed at pH 5, 7, and 9, followed by evaluation of their adhesion properties in both dry and wet lap shear tests. The complexes prepared at higher pH values showed a larger adhesion strength and improved water resistance. To further enhance the adhesive properties, an epoxide-based reagent was utilized to double-cross-link the complexes, resulting in a lap shear strength of ∼2 MPa after being submerged in water for 7 days.

Original language	English
Journal	ACS Applied Polymer Materials
Volume	5
Pages (from-to)	8216−8222
ISSN	2637-6105
DOIs	https://doi.org/10.1021/acsapm.3c01400
Publication status	Published - 2023

Keywords

Bio-based adhesive
Marine-inspired adhesive
Polylysine
Tannic acid
Water resistance

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/acsapm.3c01400

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title = "A Biomimetic Water-Resistant Adhesive Based on ϵ-Polylysine/Tannic Acid Complexation",

abstract = "This study investigates the potential of combining ϵ-polylysine and tannic acid to develop bio-based adhesives with enhanced water resistance. The two biomolecules exhibited complexation/precipitation in aqueous solutions in the pH range of 5-9. Water-based adhesives were prepared using complexes formed at pH 5, 7, and 9, followed by evaluation of their adhesion properties in both dry and wet lap shear tests. The complexes prepared at higher pH values showed a larger adhesion strength and improved water resistance. To further enhance the adhesive properties, an epoxide-based reagent was utilized to double-cross-link the complexes, resulting in a lap shear strength of ∼2 MPa after being submerged in water for 7 days.",

keywords = "Bio-based adhesive, Marine-inspired adhesive, Polylysine, Tannic acid, Water resistance",

author = "Junjie Kang and {Zajforoushan Moghaddam}, Saeed and Larsen, {Ren{\'e} Wugt} and Esben Thormann",

note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",

year = "2023",

doi = "10.1021/acsapm.3c01400",

language = "English",

volume = "5",

pages = "8216−8222",

journal = "ACS Applied Polymer Materials",

issn = "2637-6105",

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T1 - A Biomimetic Water-Resistant Adhesive Based on ϵ-Polylysine/Tannic Acid Complexation

AU - Kang, Junjie

AU - Zajforoushan Moghaddam, Saeed

AU - Larsen, René Wugt

AU - Thormann, Esben

PY - 2023

Y1 - 2023

N2 - This study investigates the potential of combining ϵ-polylysine and tannic acid to develop bio-based adhesives with enhanced water resistance. The two biomolecules exhibited complexation/precipitation in aqueous solutions in the pH range of 5-9. Water-based adhesives were prepared using complexes formed at pH 5, 7, and 9, followed by evaluation of their adhesion properties in both dry and wet lap shear tests. The complexes prepared at higher pH values showed a larger adhesion strength and improved water resistance. To further enhance the adhesive properties, an epoxide-based reagent was utilized to double-cross-link the complexes, resulting in a lap shear strength of ∼2 MPa after being submerged in water for 7 days.

AB - This study investigates the potential of combining ϵ-polylysine and tannic acid to develop bio-based adhesives with enhanced water resistance. The two biomolecules exhibited complexation/precipitation in aqueous solutions in the pH range of 5-9. Water-based adhesives were prepared using complexes formed at pH 5, 7, and 9, followed by evaluation of their adhesion properties in both dry and wet lap shear tests. The complexes prepared at higher pH values showed a larger adhesion strength and improved water resistance. To further enhance the adhesive properties, an epoxide-based reagent was utilized to double-cross-link the complexes, resulting in a lap shear strength of ∼2 MPa after being submerged in water for 7 days.

KW - Bio-based adhesive

KW - Marine-inspired adhesive

KW - Polylysine

KW - Tannic acid

KW - Water resistance

U2 - 10.1021/acsapm.3c01400

DO - 10.1021/acsapm.3c01400

M3 - Journal article

AN - SCOPUS:85174949613

SN - 2637-6105

VL - 5

SP - 8216−8222

JO - ACS Applied Polymer Materials

JF - ACS Applied Polymer Materials

ER -

A Biomimetic Water-Resistant Adhesive Based on ϵ-Polylysine/Tannic Acid Complexation

Abstract

Keywords

UN SDGs

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