Article
Agricultural Engineering
Salise Oktay, Nilgun Kizilcan, Basak Bengu
Summary: A bio-based wood adhesive formulation containing cornstarch, Mimosa tannin, sugar, and citric acid was developed and evaluated for its chemical and thermal properties. The quality of the adhesive was tested by producing laboratory-scale particleboards according to European norms. Factors such as wood raw material, press parameters, and environmental conditions were found to affect the formaldehyde content of the boards.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Engineering, Chemical
Xinyi Chen, Hisham Essawy, Haizhu Wu, Antonio Pizzi, Emmanuel Fredon, Christine Gerardin, Guanben Du, Xiaojian Zhou
Summary: In this study, the performance of tannin-based non-isocyanate polyurethane adhesive was improved by using branched polyethylenimine/tannin mixtures instead of toxic hexamethylenediamine. By adding appropriate amounts of tannin/PEI mixtures, the viscosity and thermal stability of the adhesive were enhanced, and it achieved similar bonding performance to the traditional adhesive.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2024)
Article
Agricultural Engineering
Abdelghani Boussetta, Anass Ait Benhamou, Aziz Ihammi, El-Houssaine Ablouh, Francisco J. Barba, Nadia Boussetta, Nabil Grimi, Amine Moubarik
Summary: This study successfully isolated proteins from shrimp waste for the formulation of wood adhesive. The addition of protein improved the mechanical and physical properties of the adhesive compared to the neat adhesive.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Polymer Science
Jakub Kawalerczyk, Joanna Walkiewicz, Dorota Dziurka, Radoslaw Mirski, Jakub Brozdowski
Summary: This study investigates the application possibility of non-modified nanocellulose and nanocellulose functionalized with APTES as a formaldehyde scavenger in UF adhesive. The results show that functionalization significantly reduces the formaldehyde content in the adhesive. Although nanocellulose reinforcement improves the mechanical properties of the boards, silanization has no effect. However, functionalization with APTES contributes to a decrease in formaldehyde emission from the boards.
Article
Engineering, Chemical
Salise Oktay, Nilgun Kizilcan, Basak Bengu
Summary: The newly developed OCS - U based adhesive can be used in conjunction with traditional melamine urea formaldehyde resin (MUF) to produce particleboards with low formaldehyde content.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2021)
Article
Engineering, Chemical
Abdelghani Boussetta, El-Houssaine Ablouh, Anass Ait Benhamou, Moha Taourirte, Amine Moubarik
Summary: This study developed an environmentally friendly wood adhesive by formulating cornstarch - mimosa tannin with sodium alginate, leading to improved mechanical and physical properties as well as water resistance of the adhesive.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2021)
Article
Materials Science, Paper & Wood
Jure Zigon, Jasa Sarazin, Milan Sernek, Janez Kovac, Sebastian Dahle
Summary: The study demonstrated that dielectric barrier discharge plasma treatment can enhance the bonding performance of beech wood with urea-formaldehyde adhesive, although the wettability slightly diminishes over time. Aging of the wood has a negative impact on the shear strength of lap joints, while plasma pre-treatment has a positive effect.
Article
Agricultural Engineering
Jinming Liu, Hailin Mo, Enjun Xie, Jianlin Fang, Zhibing Hou, Weixing Gan
Summary: The effect of carbon black from Mao bamboo (MBCB) as a reinforcing agent in melamine urea formaldehyde (MUF) resin wood adhesive is evaluated. The incorporation of MBCB improves adhesion strength and reduces heat resistance and formaldehyde emission. However, the pre-pressing performance of the adhesive is reduced with higher substitution ratio. It is suggested that MBCB facilitates the curing reaction of MUF resin.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Biochemistry & Molecular Biology
Gaoxiang Xu, Qianyu Zhang, Xuedong Xi, Hong Lei, Ming Cao, Guanben Du, Zhigang Wu
Summary: In this study, tannin-hexanediamine (TH) adhesive was prepared by simply mixing tannin and hexanediamine and used to make plywood. The effects of the mass ratio of hexanediamine to tannin and the pH value of the TH adhesive on shear strength were investigated. The results showed that the plywood exhibited good water resistance when the mass ratio was above 25% and the pH value was above 9.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Paper & Wood
Stefan Pinkl, Stefan Veigel, Wolfgang Gindl-Altmutter, Hendrikus van Herwijnen, Martin Riegler
Summary: This study examined the beneficial effects of fibrillar cellulosic additives derived from sugar beet pulp and wood pulp on the performance of aminoplastic particleboard adhesives. The results showed that within certain boundaries, the use of these additives can lead to longer open time, higher internal bond strengths, and reduced resin consumption.
WOOD MATERIAL SCIENCE & ENGINEERING
(2022)
Article
Materials Science, Paper & Wood
Omer Umit Yalcin
Summary: This study investigated the effect of nanofibrillated cellulose (NFC) and titanium dioxide (TiO2) addition in urea-formaldehyde resin formulation on the physical, mechanical, and morphological properties of particleboard samples. NFC (0.5% and 1%) and TiO2 (0.5%, 1%, and 2%) were added to a 10% adhesive formulation, and samples were produced under different pressure times (4 and 8 min). Water absorption, thickness swelling, internal bonding strength, modulus of rupture, modulus of elasticity, scanning electron microscopy, and statistical analysis were performed. The thickness swelling values ranged from 19.9% to 34.9%, and water absorption values were from 74.50% to 110.6%. The maximum values for MOR, MOE, and IB were 22.2 MPa, 2570 MPa, and 1.1 MPa, respectively.
Article
Polymer Science
Hui Zhao, Xianzhen Li, Xi Wang, Mianwu Meng, Xiujian Wang, Siyu Huang, Weixing Gan
Summary: The effects of copper (II) sulfate on the formaldehyde release and mechanical properties of urea formaldehyde adhesive were investigated. It was found that the addition of 3% copper (II) sulfate can significantly reduce the free formaldehyde content in the adhesive and decrease the formaldehyde release from plywood, while improving the bonding strength.
Article
Chemistry, Applied
Salise Oktay, Nilgun Kizilcan, Basak Bengu
Summary: The purpose of this study is to develop a sustainable and formaldehyde-free wood adhesive formulation. Starch and tannin-based wood adhesive were synthesized and showed successful adhesive capacity with low formaldehyde content. These bio-based resin formulations could serve as potential eco-friendly and cost-effective alternatives for interior particleboard production.
PIGMENT & RESIN TECHNOLOGY
(2022)
Article
Polymer Science
Jingbiao Song, Shiwei Chen, Xibin Yi, Xinfu Zhao, Jing Zhang, Xiaochan Liu, Benxue Liu
Summary: Low-cost UF/HNTs nanocomposite adhesive was successfully prepared via in situ polymerization. Modified HNTs were well dispersed in the resin, leading to improved thermal stability, reduced formaldehyde emission, and enhanced water resistance of the nanocomposite. The study proposed a mechanism for the nanocomposites based on reactive HNTs and can provide insights for preparing other polymer/clay nanocomposites.
Article
Chemistry, Multidisciplinary
Heng Tian, Long Cao, Gaoxiang Xu, Yutian Liang, Huan Yang, Jiarong Zhu, Hong Lei, Naiying Wei, Guanben Du
Summary: The purpose of this investigation was to design novel alternating copolymers as adhesives for wood manufacturing. The MMU-G resins showed excellent water resistance and long storage stability, which are different from those of UF adhesives. After a 120-day storage period, the plywood produced with MMU-G resins still exhibited good wet shear strength.
Article
Forestry
Xinyi Chen, Antonio Pizzi, Bengang Zhang, Xiaojian Zhou, Emmanuel Fredon, Christine Gerardin, Guanben Du
Summary: A new bio-sourced adhesive system based on urea crosslinked glyoxalated lignin and dialdehyde starch was developed, with acceptable results for producing particleboard according to European standards. Chemical crosslinking using partially bio-sourced glycerol glycidyl ether (GDE) improved bonding strength of the resins formed, with main crosslinking sites also determined.
WOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Paper & Wood
Benoit Ndiwe, Noel Konai, Antonio Pizzi, Lionel Karga, Maxime D. Kaoutoing, Raidandi Danwe
Summary: This study utilizes bio-hardeners derived from plant exudates in the Far North region of Cameroon to manufacture particleboard, resulting in improved properties compared to synthetic hardeners.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Chunyin Li, Hong Lei, Zhigang Wu, Xuedong Xi, Guanben Du, Antonio Pizzi
Summary: A fully biomass-based citric acid-glucose (CAG) adhesive with excellent bonding strength and water resistance was successfully developed in this study. The properties of the adhesive were tuned by adjusting the reaction conditions. The CAG adhesive showed superior performance compared to traditional urea-formaldehyde (UF) resin adhesives in the application of plywood.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Characterization & Testing
Haizhu Wu, Dongsen Liao, Xinyi Chen, Guanben Du, Taohong Li, Hisham Essawy, Antonio Pizzi, Xiaojian Zhou
Summary: In recent years, concerns over the shortcomings of conventional resin-bonded products have led researchers to develop a new generation of adhesives derived from natural renewable biomass resources. In this study, a novel epoxidized tannin-based non-isocyanate polyurea adhesive was prepared and its structure, molecular weight, and thermal degradation behavior were investigated. The mechanical properties and water resistance of the produced plywood were evaluated, showing that the adhesive possesses ideal bonding strength and excellent water resistance, making it suitable for potential applications under harsh conditions.
Article
Polymer Science
Bengang Zhang, Mathieu Petrissans, Anelie Petrissans, Antonio Pizzi, Baptiste Colin
Summary: The hydrophobicity of heat-treated beech and fir wood at different temperatures (120℃ to 300℃) was defined using the Whilhelmy method, wood thermal properties (TG/DTG), infrared spectroscopy, etc. The hydrophobic character obtained by the heat treatment remains constant even when exposed to wet conditions for 1 week. Heat-induced wood hydrophobation is mainly caused by furanic moieties produced from heat-induced degradation of hemicelluloses, which is triggered by the acid environment generated by the hydrolysis of hemicellulose acetyl groups.
Article
Engineering, Environmental
Xinyi Chen, Zhengyong Yang, Fuxian Yang, Jun Zhang, Antonio Pizzi, Hisham Essawy, Guanben Du, Xiaojian Zhou
Summary: This study proposes a convenient preparation method for wood adhesives derived from sustainable hydrolyzed wheat gluten protein (HWG) and furfuryl alcohol (FA). The interaction mechanism between HWG and FA is revealed through FT-IR, 13C NMR, and MALDI-TOF spectra analyses. The obtained wood adhesives show excellent bonding performance and retardation of water intrusion, surpassing the requirements for exterior-grade plywood type I according to China National Standard (GB/T 9846-2015, >= 0.7 MPa).
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Engineering, Chemical
Younes Shirmohammadli, Antonio Pizzi, Gary M. Raftery, Ashkan Hashemi
Summary: Wood is a sustainable and versatile construction material with a lower carbon footprint. One-component polyurethane (1C PUR) adhesives have gained popularity in the engineered wood products (EWPs) industry due to their formaldehyde-free nature, ability to bond wood at high moisture content, and invisible glue lines. However, they may have some drawbacks in certain environments, but overall, they exhibit good performance in bonding wood and composites.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2023)
Article
Engineering, Chemical
Jean Jalin Eyinga Biwole, Achille Bernard Biwole, Joseph Zobo Mfomo, Antonio Pizzi, Cesar Segovia, Dieudonne Abessolo, Benoit Ndiwe, Evariste Fedoung Fongnzossie, Atangana Ateba, Pierre-Jean Meausoone
Summary: The objective of this study was to determine the factors affecting the cold water resistance of Iroko wood welded joints. The welding parameters considered were grain direction, welding time, pre-drilled-hole depth, and rotation speed. The pull-out resistance of the joints immersed in distilled water at different temperatures for various time periods was also tested. The results showed that the maximum welding temperatures and pull-out strength varied depending on the welding parameters and wood orientation. Some welded joints exhibited good water stability due to the presence of certain compounds that were insensitive to water. Overall, Iroko wood showed promise for wood welding technique.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2023)
Article
Polymer Science
Bengang Zhang, Xinyi Chen, Antonio Pizzi, Mathieu Petrissans, Stephane Dumarcay, Anelie Petrissans, Xiaojian Zhou, Guanben Du, Baptiste Colin, Xuedong Xi
Summary: Condensed tannin copolymerized with hyperbranched tris(2-aminoethyl)amine-urea to form a particleboard thermosetting adhesive without aldehydes, meeting the relevant standards for internal bond strength. The adhesive can cure effectively at a low temperature of 180 degrees C and has zero formaldehyde emission. The tannin acts as a cross-linking agent, enhancing the overall bonding performance. The chemical analysis reveals that substitution and rare reaction occur between tannin and the amine and amide groups.
Article
Polymer Science
Pierre Delliere, Antonio Pizzi, Nathanael Guigo
Summary: Poly(furfuryl alcohol) is a thermostable biobased thermoset that can be modified through the opening of the furan ring and derivatization. This study compares the structural differences between PFA prepared in neat conditions and PFA prepared in aqueous conditions. The results show that the aqueous PFA has a more heterogeneous structure with the presence of ketonic derivatives, while the neat PFA exhibits terminal lactones instead of aldehydes.
Article
Environmental Sciences
Abderrezzaq Benalia, Walid Chaibraa, Sara Djeghar, Kerroum Derbal, Amel Khalfaoui, Asma Mahfouf, Raouf Bouchareb, Antonio Panico, Antonio Pizzi
Summary: This study reveals the potential of proteins extracted from oak leaves to treat drinking water and industrial oily wastewater. The analysis of oak leaves confirmed the presence of proteins acting as bio-coagulants. The experimental design identified the optimal operating parameters. The study demonstrated the effectiveness of oak leaves proteins in reducing turbidity and pollutants in both drinking water and industrial oily wastewater.
Article
Materials Science, Paper & Wood
Benoit Ndiwe, Noel Konai, Achille Desire Omgba Betene, Antonio Pizzi, Achille Gnassiri Wedaina, Fotio Nzogning, Armel Mewoli, Michel Mbere Taoga, Duval Tekam, Honore Bayangbe Kikmo, Paul Kah
Summary: In this study, the fibre of Grewia bicolor bark was extracted and used as reinforcement for fibreboards. Two extraction methods were used, biological retting and chemical extraction using a sodium hydroxide solution. The properties of the fibres were characterized using various methods, including ATF FTIR, mechanical tests, and thermogravimetric analysis. The results showed that the extracted fibres had a theoretical density of 1.30 g/cm³ and a 5% decrease in porosity from root to leaves. SEM analysis revealed the presence of fibrils with a honeycomb cell-like structure. The use of NaOH in the extraction method removed hemicellulose, pectin, wax, and lignin from the fibres. The untreated and treated fibres had average elasticity moduli of E = 35.18 ± 2.25 MPa and E = 33.47 ± 2.35 MPa, respectively, and the internal bond strength of the fibreboards was 0.98 ± 0.05 MPa and 1.06 ± 0.02 MPa.
INTERNATIONAL WOOD PRODUCTS JOURNAL
(2023)
Review
Forestry
Dominika Janiszewska-Latterini, Antonio Pizzi
Summary: This review aims to investigate the application of liquefied wood products in reducing the environmental impact of particleboard manufacturing. The findings reveal that the application of liquefied wood products does not significantly affect the mechanical properties and formaldehyde content of particleboards, and different feedstock types show similar effects on board properties. However, there is a limited number of studies in this field, and further research is needed to determine the outcomes and benefits of using liquefied wood products on an industrial scale.
CURRENT FORESTRY REPORTS
(2023)
Article
Materials Science, Paper & Wood
Godwin Fonyuy Banyuy, Antonio Pizzi, Jean Gaston Tamba, Achille Bernard Biwole, Benoit Ndiwe, Jean Jalin Eyinga Biwole, Fopah-Lele Armand, Evariste Fongnzossie Fedoung, Joseph Zobo Mfomo
Summary: This study aimed to determine the quantity, nature, and role of extracts during the sorption behavior of two Central African hardwood species. The results showed that acetone extracts had a significant effect on the hygroscopic nature of wood.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Zakaria Laggoun, Amel Khalfaoui, Abderrezzaq Benalia, Amira Fadia Ghomrani, Raouf Bouchareb, Asma Mahfouf, Antonio Pizzi, Antonio Panico, Kerroum Derbal
Summary: This work optimizes the conditions for the removal of a textile dye by biosorption on seafood waste and demonstrates the acceptability of the quadratic regression model. The study also reveals the thermodynamic properties and adsorption mechanism of the process.
APPLIED SCIENCES-BASEL
(2023)