Bio-inspired chitosan/polyvinyl alcohol/tannic acid hydrogels as plant grafting wood adhesives

Recently, there has been growing interest in plant-inspired materials for various biological, medical, and industrial applications. Notably, tannic acid-based materials exhibit remarkable adhesive properties and can be used in a variety of applications, particularly biomedical applications. In addit...

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Main Authors: Haejin Bae, Hyun Ho Shin, Ji Hyun Ryu
Format: Article
Language:English
Published: AIP Publishing LLC 2024-11-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/5.0242425
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author Haejin Bae
Hyun Ho Shin
Ji Hyun Ryu
author_facet Haejin Bae
Hyun Ho Shin
Ji Hyun Ryu
author_sort Haejin Bae
collection DOAJ
description Recently, there has been growing interest in plant-inspired materials for various biological, medical, and industrial applications. Notably, tannic acid-based materials exhibit remarkable adhesive properties and can be used in a variety of applications, particularly biomedical applications. In addition, mixtures composed of tannic acid and polymers (e.g., polyvinyl alcohol) exhibit excellent adhesion to various substrates. In this study, we developed gallol-containing chitosan (G-CS), polyvinyl alcohol (PVA), and tannic acid (TA) composite (G-CPT) hydrogels as wood adhesive materials. G-CPT hydrogels were immediately formed by mixing the G-CS/PVA solution with the TA solution. Rheological analysis revealed an increase in the elastic modulus (G′) with the addition of small amounts of G-CS. In addition, the detachment stress of wood sticks attached using G-CPT hydrogels was 142.2 ± 7.2 MPa, which was substantially higher than that of G-CS (5.3 ± 1.4 kPa), PVA (2.2 ± 0.2 kPa), TA (0.4 ± 0.1 kPa), and PVA/TA hydrogels (106.5 ± 2.5 MPa). Furthermore, G-CPT hydrogels can be used as wood adhesives for scion grafting into the rootstock of English ivy. These findings highlight the importance of G-CPT hydrogels as eco-friendly wood adhesives with enormous potential for various industrial and agricultural applications.
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spelling doaj-art-ae0b620bbb8d41f7908e00fbcbacb7752024-12-04T17:09:06ZengAIP Publishing LLCAPL Materials2166-532X2024-11-011211111110111110-910.1063/5.0242425Bio-inspired chitosan/polyvinyl alcohol/tannic acid hydrogels as plant grafting wood adhesivesHaejin Bae0Hyun Ho Shin1Ji Hyun Ryu2Ecological Technology Research Team, Division of Ecological Application Research, National Institute of Ecology, Seocheon-gun, Chungnam 33657, Republic of KoreaDepartment of Chemical Engineering, Wonkwang University, Iksan, Jeonbuk 54538, Republic of KoreaDepartment of Chemical Engineering, Wonkwang University, Iksan, Jeonbuk 54538, Republic of KoreaRecently, there has been growing interest in plant-inspired materials for various biological, medical, and industrial applications. Notably, tannic acid-based materials exhibit remarkable adhesive properties and can be used in a variety of applications, particularly biomedical applications. In addition, mixtures composed of tannic acid and polymers (e.g., polyvinyl alcohol) exhibit excellent adhesion to various substrates. In this study, we developed gallol-containing chitosan (G-CS), polyvinyl alcohol (PVA), and tannic acid (TA) composite (G-CPT) hydrogels as wood adhesive materials. G-CPT hydrogels were immediately formed by mixing the G-CS/PVA solution with the TA solution. Rheological analysis revealed an increase in the elastic modulus (G′) with the addition of small amounts of G-CS. In addition, the detachment stress of wood sticks attached using G-CPT hydrogels was 142.2 ± 7.2 MPa, which was substantially higher than that of G-CS (5.3 ± 1.4 kPa), PVA (2.2 ± 0.2 kPa), TA (0.4 ± 0.1 kPa), and PVA/TA hydrogels (106.5 ± 2.5 MPa). Furthermore, G-CPT hydrogels can be used as wood adhesives for scion grafting into the rootstock of English ivy. These findings highlight the importance of G-CPT hydrogels as eco-friendly wood adhesives with enormous potential for various industrial and agricultural applications.http://dx.doi.org/10.1063/5.0242425
spellingShingle Haejin Bae
Hyun Ho Shin
Ji Hyun Ryu
Bio-inspired chitosan/polyvinyl alcohol/tannic acid hydrogels as plant grafting wood adhesives
APL Materials
title Bio-inspired chitosan/polyvinyl alcohol/tannic acid hydrogels as plant grafting wood adhesives
title_full Bio-inspired chitosan/polyvinyl alcohol/tannic acid hydrogels as plant grafting wood adhesives
title_fullStr Bio-inspired chitosan/polyvinyl alcohol/tannic acid hydrogels as plant grafting wood adhesives
title_full_unstemmed Bio-inspired chitosan/polyvinyl alcohol/tannic acid hydrogels as plant grafting wood adhesives
title_short Bio-inspired chitosan/polyvinyl alcohol/tannic acid hydrogels as plant grafting wood adhesives
title_sort bio inspired chitosan polyvinyl alcohol tannic acid hydrogels as plant grafting wood adhesives
url http://dx.doi.org/10.1063/5.0242425
work_keys_str_mv AT haejinbae bioinspiredchitosanpolyvinylalcoholtannicacidhydrogelsasplantgraftingwoodadhesives
AT hyunhoshin bioinspiredchitosanpolyvinylalcoholtannicacidhydrogelsasplantgraftingwoodadhesives
AT jihyunryu bioinspiredchitosanpolyvinylalcoholtannicacidhydrogelsasplantgraftingwoodadhesives