Influence of glutaraldehyde on the performance of a lignosulfonate/chitosan‐based medium density fiberboard adhesive

Ji, Xiaodi; Dong, Yue; Yuan, Bingnan; Li, Bin; Guo, Minghui

doi:10.1002/app.45870

Cited by 14 publications

(12 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, chitosan–lignin blends have been researched for their role in removal of water pollutants, wound dressing, controlled drug delivery, food packaging, and bonding of wood materials [ 18 , 19 , 20 , 21 , 22 ]. In our earlier work [ 23 ], the development of lignosulfonate/chitosan adhesives (L/C) as potential cheap and environment-friendly MDF adhesives was presented.…”

Section: Introductionmentioning

confidence: 99%

Synthesis Mechanism of an Environment-Friendly Sodium Lignosulfonate/Chitosan Medium-Density Fiberboard Adhesive and Response of Bonding Performance to Synthesis Mechanism

Guo

Zhu

et al. 2020

Materials

Self Cite

View full text Add to dashboard Cite

Environment-friendly medium-density fiberboards (MDFs) prepared using sodium lignosulfonate/chitosan adhesives (L/C) show potential in environment-friendly wood-based panel application. However, the synthesis mechanism of this adhesive and the relationships between synthesis mechanism and bonding performance were not discussed in depth. Herein, the synthesis mechanism of L/C was explored in detail based on characterizations of L/C with different mass ratios of sodium lignosulfonate to chitosan by Fourier-transform infrared spectroscopy, thermogravimetric analysis, and X-ray diffraction. For L/C with different mass ratios of sodium lignosulfonate to chitosan, the corresponding bonding performance was also determined based on characterizations of mechanical and dimensional performance of MDFs. Results showed a 3D network structure of L/C formed through the hydrogen linkages among hydroxyl groups in sodium lignosulfonate and hydroxyl and amino groups in chitosan, amide linkages resulted from reaction between carbonyl groups in sodium lignosulfonate and amino groups in chitosan, and sulfonamide linkages originated from reaction between sulfonic groups in sodium lignosulfonate and amino groups in chitosan. The mechanical performance of MDF was closely related to the 3D network and amino groups of L/C, while the dimensional performance of MDF was negatively affected by sodium lignosulfonate. The MDFs with 1:3 and 1:2 mass ratios of sodium lignosulfonate to chitosan showed superior mechanical properties and comparable dimensional performance with a commercial panel.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis Mechanism of an Environment-Friendly Sodium Lignosulfonate/Chitosan Medium-Density Fiberboard Adhesive and Response of Bonding Performance to Synthesis Mechanism

Guo

Zhu

et al. 2020

Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…Lignosulfonate is a by-product of the sulfite pulping process, providing up to 90% of commercial lignin with an annual production of around 1.8 million tons [ 18 , 19 , 20 , 21 , 22 , 23 ]. The hydrophobicity, water solubility, and negative charge density of lignosulfonate, in addition to its thermal stability, renewability and eco-friendliness [ 24 ], make this polymer a promising candidate to be used in industry [ 21 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

“…The hydrophobicity, water solubility, and negative charge density of lignosulfonate, in addition to its thermal stability, renewability and eco-friendliness [ 24 ], make this polymer a promising candidate to be used in industry [ 21 , 24 ]. Kraft lignin is produced via pulping of wood chips using sodium sulfite and sodium hydroxide, while alkali lignin is produced via pulping of wood chips using sodium hydroxide [ 18 , 19 , 20 , 21 , 22 , 23 ]. Kraft lignin and alkali lignin are not water soluble at pH 7 in opposition to lignosulfonates [ 18 , 19 , 20 , 21 , 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

Production of Flocculants, Adsorbents, and Dispersants from Lignin

et al. 2018

View full text Add to dashboard Cite

Currently, lignin is mainly produced in pulping processes, but it is considered as an under-utilized chemical since it is being mainly used as a fuel source. Lignin contains many hydroxyl groups that can participate in chemical reactions to produce value-added products. Flocculants, adsorbents, and dispersants have a wide range of applications in industry, but they are mainly oil-based chemicals and expensive. This paper reviews the pathways to produce water soluble lignin-based flocculants, adsorbents, and dispersants. It provides information on the recent progress in the possible use of these lignin-based flocculants, adsorbents, and dispersants. It also critically discusses the advantages and disadvantages of various approaches to produce such products. The challenges present in the production of lignin-based flocculants, adsorbents, and dispersants and possible scenarios to overcome these challenges for commercial use of these products in industry are discussed.

show abstract

“…The chemical shifts relative to C1 (284.3 eV) for C2, C3 and C4 were 1.5 ± 0.1 eV, 3 ± 0.1 eV and 4 ± 0.1 eV, respectively. X-ray diffraction (XRD) patterns were obtained using an X-ray diffractometer (D/max 2200, Rigaku, Japan) and the relative crystallinity (CI) was calculated according to Segal method [ 20 ] as follows:

100

where I 002 represents the maximum intensity of both crystalline and amorphous region of the material and I am represents the intensity of the amorphous region of the material.…”

Section: Methodsmentioning

confidence: 99%

Environment-friendly wood fibre composite with high bonding strength and water resistance

Ji¹,

Dong²,

Nguyen³

et al. 2018

R. Soc. open sci.

Self Cite

View full text Add to dashboard Cite

With the growing depletion of wood-based materials and concerns over emissions of formaldehyde from traditional wood fibre composites, there is a desire for environment-friendly binders. Herein, we report a green wood fibre composite with specific bonding strength and water resistance that is superior to a commercial system by using wood fibres and chitosan-based adhesives. When the mass ratio of solid content in the adhesive and absolute dry wood fibres was 3%, the bonding strength and water resistance of the wood fibre composite reached the optimal level, which was significantly improved over that of wood fibre composites without adhesive and completely met the requirements of the Chinese national standard GB/T 11718-2009. Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) characterizations revealed that the excellent performance of the binder might partly be due to the amide linkages and hydrogen bonding between wood fibres and the chitosan-based adhesive. We believe that this strategy could open new insights into the design of environment-friendly wood fibre composites with high bonding strength and water resistance for multifunctional applications.

show abstract

Influence of glutaraldehyde on the performance of a lignosulfonate/chitosan‐based medium density fiberboard adhesive

Cited by 14 publications

References 32 publications

Synthesis Mechanism of an Environment-Friendly Sodium Lignosulfonate/Chitosan Medium-Density Fiberboard Adhesive and Response of Bonding Performance to Synthesis Mechanism

Synthesis Mechanism of an Environment-Friendly Sodium Lignosulfonate/Chitosan Medium-Density Fiberboard Adhesive and Response of Bonding Performance to Synthesis Mechanism

Production of Flocculants, Adsorbents, and Dispersants from Lignin

Environment-friendly wood fibre composite with high bonding strength and water resistance

Contact Info

Product

Resources

About