Urea glyoxal and urea melamine glyoxal wood adhesives hardened with acid ionic liquid for particleboard pressing

Alkan, Ümran Burcu; Kızılcan, Nilgün; Bengű, Başak

doi:10.1007/s00107-022-01811-9

Cited by 8 publications

(3 citation statements)

References 56 publications

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“…It can be seen from the references that the sieving of raw straw particles was an essential step during straw‐based particleboards production, which was in favor of mechanical strength. In addition, many particleboards were produced using urea‐formaldehyde (UF) adhesive with a curing agent (NH 4 Cl) and waterproof agent (paraffin) 34 . In this work, the reed straw particles were sprayed with MDI and lignin‐based adhesives successively, which the adhesive amount was calculated based on the mass of raw particles.…”

Section: Resultsmentioning

confidence: 99%

“…The code of each sample is explained in Table S4 urea-formaldehyde (UF) adhesive with a curing agent (NH 4 Cl) and waterproof agent (paraffin). 34 In this work, the reed straw particles were sprayed with MDI and lignin-based adhesives successively, which the adhesive amount was calculated based on the mass of raw particles. Under the premise of ensuring the mechanical strength, the addition of MDI was only 4.0% (w/w).…”

Section: Mechanical Strength Of Rpsmentioning

confidence: 99%

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Sieving and hydrothermal pre‐treatments for preparing ultra‐high mechanical strength particleboard

Zhou

Pang

Cao

et al. 2023

J of Applied Polymer Sci

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The application of non woody biomass materials in the manufacture of wood‐based panels has been confirmed as an efficient carbon sequestration approach. In this study, reed straw was recommended to produce reed‐based particleboards (RPs). Sieving and hydrothermal pre‐treatments were conducted on the inner layer reed particles to reduce the adverse influence of the waxy layer on the mechanical strength of RPs. The thickness swelling rate was merely 1.04% (2 h), and the internal bonding strength could reach up to 0.88 MPa, which met the ISO requirements for heavy‐duty load bearing in dry conditions (P‐HLB REG). More importantly, this study constructed the plate forming process that retains the natural morphological characteristics of reed to the maximum extent. Generally, the mechanical strength of RPs was markedly higher than mostly straw‐based and even wood‐based panels. The static bending strength of RPs could reach 35.6 MPa after sieving pre‐treatment. In addition, according to the LCA, the net carbon flux could reach −1227.55 kg CO2 eq. when producing 1 m3 RPs. The obtained RPs could be utilized as wood substitutes to produce furniture and building materials with promising environmental and economic benefits.

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Section: Resultsmentioning

confidence: 99%

Section: Mechanical Strength Of Rpsmentioning

confidence: 99%

Sieving and hydrothermal pre‐treatments for preparing ultra‐high mechanical strength particleboard

Zhou

Pang

Cao

et al. 2023

J of Applied Polymer Sci

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“…A basal part of melamine with 3 N atoms has shown a smooth surface area indicating extensive crosslinking within molecule due to intermolecular bonding. The NPs doped MFP resin should encapsulate the NPs on surface of MFP resin as the MFP resin has a property to create a spherical morphology on the surface by encapsulating metal NPs 83–86 within its crosslinking part and PVP chains.…”

Section: Resultsmentioning

confidence: 99%

Synthesis, characterization, and functionalization of superadhesive melamine formaldehyde polyvinylpyrrolidone resins doped with metallic and graphene oxide nanoparticles for better industrial applications

Pan

Upadhyay

Singh

et al. 2022

J of Applied Polymer Sci

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Structure of melamine‐formaldehyde‐polyvinylpyrrolidone (MFP) polymer resin prepared with melamine, formaldehyde, polyvinyl pyrrolidone (PVP) at pH=7 was determined using FTIR, 1H NMR, and 13C NMR spectroscopy. Physicochemical properties and thermal stability were analyzed with dynamic light scattering (DLS) and thermogravimetric analysis (TGA) respectively. 1H NMR spectra showed doublet at 3.13 and 3.17 ppm due to neighboring electron‐deficient nitrogen and electron density of bridged carbon atoms. The 13C NMR have infrared vinyl chain, melamine, and pyrrolidone peak for C=O, 48.72 ppm depicts C atom of −CH2 between O and C atoms. Peak at 17.50 ppm inferred terminal −CH3 of vinyl chain. FTIR stretching frequencies at 3426.38 and 2915.5 cm−1 vibrations depicted −N= (tertiary amine), and −CH2 group of −()CH2−CH2n vinyl chain of PVP, respectively. New band at 2350 cm−1 inferred –CH2 of formaldehyde attached with O atoms of PVP. MFP was doped with Fe3O4 (magnetic nanoparticles = MNPs), CaS (calcium sulfide), CaO, and graphene nanoparticles for reinforcement. Encapsulated Fe3O4–MFPR, CaS–MFPR, graphene oxide–MFPR are compared with MFPR alone. TGA inferred higher stability of Fe3O4–MFPR, CaS–MFPR.

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Facile Synthesize of an Inorganic–Organic Hybrid for a Simultaneous Improvement of Fire Safety and Mechanical Properties of Epoxy Resins

Li,

Yang,

Guan

et al. 2024

J Inorg Organomet Polym

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Urea glyoxal and urea melamine glyoxal wood adhesives hardened with acid ionic liquid for particleboard pressing

Cited by 8 publications

References 56 publications

Sieving and hydrothermal pre‐treatments for preparing ultra‐high mechanical strength particleboard

Sieving and hydrothermal pre‐treatments for preparing ultra‐high mechanical strength particleboard

Synthesis, characterization, and functionalization of superadhesive melamine formaldehyde polyvinylpyrrolidone resins doped with metallic and graphene oxide nanoparticles for better industrial applications

Facile Synthesize of an Inorganic–Organic Hybrid for a Simultaneous Improvement of Fire Safety and Mechanical Properties of Epoxy Resins

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