Potential of glycerol as a bio-based wood adhesive

Abstract The development of bio-based adhesives, to the extent possible without harmful chemicals derived from fossil resources, is very important for the sustainable use of wood-based materials. In this study, we investigated the possibility of glycerol as a bio-based adhesive by manufacturing wood...

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Main Authors: Jianshu Lu, Tomofumi Umeshita, Shunsuke Sakai, Miyuki Matsuo-Ueda, Daisuke Ando, Shuoye Chen, Kenji Umemura
Format: Article
Language:English
Published: SpringerOpen 2025-02-01
Series:Journal of Wood Science
Subjects:
Online Access:https://doi.org/10.1186/s10086-025-02176-2
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author Jianshu Lu
Tomofumi Umeshita
Shunsuke Sakai
Miyuki Matsuo-Ueda
Daisuke Ando
Shuoye Chen
Kenji Umemura
author_facet Jianshu Lu
Tomofumi Umeshita
Shunsuke Sakai
Miyuki Matsuo-Ueda
Daisuke Ando
Shuoye Chen
Kenji Umemura
author_sort Jianshu Lu
collection DOAJ
description Abstract The development of bio-based adhesives, to the extent possible without harmful chemicals derived from fossil resources, is very important for the sustainable use of wood-based materials. In this study, we investigated the possibility of glycerol as a bio-based adhesive by manufacturing wood-based moldings. The raw materials used were glycerol and wood powder of Japanese cedar (Cryptomeria japonica). The moldings were manufactured under hot-pressed at 160–220 °C and 4 MPa for 10 min. The glycerol content varied from 0 to 30 wt%. Color differences in the resulting molding increased with increasing glycerol content and hot-press temperature, suggesting that chemical changes occur during hot pressing in the presence of glycerol. The best bending properties of the moldings were obtained under manufacturing conditions of 15 wt% glycerol and 220 °C. In the water resistance test using boiling water, weight gain and thickness swelling of moldings were inhibited with increasing glycerol content. The moldings manufactured at hot-press temperatures above 200 °C developed water resistance. Ether linkages were detected by Fourier transform infrared spectroscopy and heteronuclear single quantum coherence nuclear magnetic resonance spectroscopy. Our results demonstrated that good adhesiveness is achieved by ether linkages resulting from the chemical reaction between glycerol and wood powder.
format Article
id doaj-art-58cbef7b89c74f1d8a34d7f2ba5b9e29
institution Kabale University
issn 1611-4663
language English
publishDate 2025-02-01
publisher SpringerOpen
record_format Article
series Journal of Wood Science
spelling doaj-art-58cbef7b89c74f1d8a34d7f2ba5b9e292025-02-09T12:14:55ZengSpringerOpenJournal of Wood Science1611-46632025-02-017111910.1186/s10086-025-02176-2Potential of glycerol as a bio-based wood adhesiveJianshu Lu0Tomofumi Umeshita1Shunsuke Sakai2Miyuki Matsuo-Ueda3Daisuke Ando4Shuoye Chen5Kenji Umemura6Research Institute for Sustainable Humanosphere, Kyoto UniversityResearch Institute for Sustainable Humanosphere, Kyoto UniversityResearch Institute for Sustainable Humanosphere, Kyoto UniversityGraduate School of Agriculture, Kyoto UniversityInstitute of Wood Technology, Akita Prefectural UniversityResearch Institute for Sustainable Humanosphere, Kyoto UniversityResearch Institute for Sustainable Humanosphere, Kyoto UniversityAbstract The development of bio-based adhesives, to the extent possible without harmful chemicals derived from fossil resources, is very important for the sustainable use of wood-based materials. In this study, we investigated the possibility of glycerol as a bio-based adhesive by manufacturing wood-based moldings. The raw materials used were glycerol and wood powder of Japanese cedar (Cryptomeria japonica). The moldings were manufactured under hot-pressed at 160–220 °C and 4 MPa for 10 min. The glycerol content varied from 0 to 30 wt%. Color differences in the resulting molding increased with increasing glycerol content and hot-press temperature, suggesting that chemical changes occur during hot pressing in the presence of glycerol. The best bending properties of the moldings were obtained under manufacturing conditions of 15 wt% glycerol and 220 °C. In the water resistance test using boiling water, weight gain and thickness swelling of moldings were inhibited with increasing glycerol content. The moldings manufactured at hot-press temperatures above 200 °C developed water resistance. Ether linkages were detected by Fourier transform infrared spectroscopy and heteronuclear single quantum coherence nuclear magnetic resonance spectroscopy. Our results demonstrated that good adhesiveness is achieved by ether linkages resulting from the chemical reaction between glycerol and wood powder.https://doi.org/10.1186/s10086-025-02176-2GlycerolBio-based adhesiveWood-based moldingWood powder
spellingShingle Jianshu Lu
Tomofumi Umeshita
Shunsuke Sakai
Miyuki Matsuo-Ueda
Daisuke Ando
Shuoye Chen
Kenji Umemura
Potential of glycerol as a bio-based wood adhesive
Journal of Wood Science
Glycerol
Bio-based adhesive
Wood-based molding
Wood powder
title Potential of glycerol as a bio-based wood adhesive
title_full Potential of glycerol as a bio-based wood adhesive
title_fullStr Potential of glycerol as a bio-based wood adhesive
title_full_unstemmed Potential of glycerol as a bio-based wood adhesive
title_short Potential of glycerol as a bio-based wood adhesive
title_sort potential of glycerol as a bio based wood adhesive
topic Glycerol
Bio-based adhesive
Wood-based molding
Wood powder
url https://doi.org/10.1186/s10086-025-02176-2
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AT miyukimatsuoueda potentialofglycerolasabiobasedwoodadhesive
AT daisukeando potentialofglycerolasabiobasedwoodadhesive
AT shuoyechen potentialofglycerolasabiobasedwoodadhesive
AT kenjiumemura potentialofglycerolasabiobasedwoodadhesive