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A Tough, Water-Resistant, High Bond Strength Adhesive Derived from Soybean Meal and Flexible Hyper-Branched Aminated Starch

Soybean meal (SM)-based adhesive exhibited a great potential to replace petroleum-derived ones to alleviate the energy crisis and eliminate carcinogenic formaldehyde. However, the bad water resistance (caused by low crosslinking density) and inherent brittleness of SM adhesive severely hindered its...

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Detalles Bibliográficos
Autores principales: Zhang, Yi, Zhang, Jieyu, Chen, Mingsong, Luo, Jing, Shi, Sheldon Q., Gao, Qiang, Li, Jianzhang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6722635/
https://www.ncbi.nlm.nih.gov/pubmed/31416235
http://dx.doi.org/10.3390/polym11081352
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author Zhang, Yi
Zhang, Jieyu
Chen, Mingsong
Luo, Jing
Shi, Sheldon Q.
Gao, Qiang
Li, Jianzhang
author_facet Zhang, Yi
Zhang, Jieyu
Chen, Mingsong
Luo, Jing
Shi, Sheldon Q.
Gao, Qiang
Li, Jianzhang
author_sort Zhang, Yi
collection PubMed
description Soybean meal (SM)-based adhesive exhibited a great potential to replace petroleum-derived ones to alleviate the energy crisis and eliminate carcinogenic formaldehyde. However, the bad water resistance (caused by low crosslinking density) and inherent brittleness of SM adhesive severely hindered its application. However, improving crosslinking density is generally accompanied by a toughness reduction of the adhesive. Herein, we developed a flexible long-chain starch with a hyper-branched structure (HD), and incorporated it with SM and a crosslinking agent to prepare a novel SM adhesive. Results showed that this adhesive exhibited both excellent water resistance and enhanced toughness. The wet bond strength of plywood fabricated using this adhesive was 354.5% higher than that of SM adhesive. These achievements are because introducing HD with hyper-branched groups enhanced crosslinking density, while HD’s flexible long-chain structure improved toughness of the adhesive. This HD can promote the development of tough and hydrophobic bio-based composites.
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spelling pubmed-67226352019-09-10 A Tough, Water-Resistant, High Bond Strength Adhesive Derived from Soybean Meal and Flexible Hyper-Branched Aminated Starch Zhang, Yi Zhang, Jieyu Chen, Mingsong Luo, Jing Shi, Sheldon Q. Gao, Qiang Li, Jianzhang Polymers (Basel) Article Soybean meal (SM)-based adhesive exhibited a great potential to replace petroleum-derived ones to alleviate the energy crisis and eliminate carcinogenic formaldehyde. However, the bad water resistance (caused by low crosslinking density) and inherent brittleness of SM adhesive severely hindered its application. However, improving crosslinking density is generally accompanied by a toughness reduction of the adhesive. Herein, we developed a flexible long-chain starch with a hyper-branched structure (HD), and incorporated it with SM and a crosslinking agent to prepare a novel SM adhesive. Results showed that this adhesive exhibited both excellent water resistance and enhanced toughness. The wet bond strength of plywood fabricated using this adhesive was 354.5% higher than that of SM adhesive. These achievements are because introducing HD with hyper-branched groups enhanced crosslinking density, while HD’s flexible long-chain structure improved toughness of the adhesive. This HD can promote the development of tough and hydrophobic bio-based composites. MDPI 2019-08-14 /pmc/articles/PMC6722635/ /pubmed/31416235 http://dx.doi.org/10.3390/polym11081352 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Yi
Zhang, Jieyu
Chen, Mingsong
Luo, Jing
Shi, Sheldon Q.
Gao, Qiang
Li, Jianzhang
A Tough, Water-Resistant, High Bond Strength Adhesive Derived from Soybean Meal and Flexible Hyper-Branched Aminated Starch
title A Tough, Water-Resistant, High Bond Strength Adhesive Derived from Soybean Meal and Flexible Hyper-Branched Aminated Starch
title_full A Tough, Water-Resistant, High Bond Strength Adhesive Derived from Soybean Meal and Flexible Hyper-Branched Aminated Starch
title_fullStr A Tough, Water-Resistant, High Bond Strength Adhesive Derived from Soybean Meal and Flexible Hyper-Branched Aminated Starch
title_full_unstemmed A Tough, Water-Resistant, High Bond Strength Adhesive Derived from Soybean Meal and Flexible Hyper-Branched Aminated Starch
title_short A Tough, Water-Resistant, High Bond Strength Adhesive Derived from Soybean Meal and Flexible Hyper-Branched Aminated Starch
title_sort tough, water-resistant, high bond strength adhesive derived from soybean meal and flexible hyper-branched aminated starch
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6722635/
https://www.ncbi.nlm.nih.gov/pubmed/31416235
http://dx.doi.org/10.3390/polym11081352
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