Wood products and green chemistry

Pizzi, A.

doi:10.1007/s13595-014-0448-3

Cited by 161 publications

(96 citation statements)

References 132 publications

(103 reference statements)

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“…Formaldehyde-based resins, especially melamine-urea-formaldehyde resin, are widely used for fabricating plywood panels [1]. But they are non-biodegradable and petroleum-derived, leading to a environmental concern when they are prepared and used [2,3].…”

Section: Introductionmentioning

confidence: 99%

Improve Performance of Soy Flour Based-Adhesive with a Lignin Based Resin

Zhang

Zhu

et al. 2017

Preprint

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The aim of this study was to using a lignin based resin (LB) to improve the performance of the soy flour based adhesive. Soy flour (SF), polyamidoamine-epichlorohydrin (PAE), LB was used to develop a plywood adhesive. The solid content and viscosity of the adhesive, functional groups, thermo-stability, and crystallinity of the cured adhesive were characterized and the performance of the resultant adhesive was evaluated by fabricating three-ply plywood. Results showed using LB and PAE mixture to modify SF adhesive improves dry and wet bond strength by 66.3 and 184.2%. PAE contributed more for the wet bond strength improvement and the LB contributed more for the dry bond strength. The improvement was attributed to: 1) LB/PAE reacted with the functions of the soy protein and form a cross-linking network; 2) Polycondensation reaction between LB molecules further improved crosslinking density of the adhesive and formed a interpenetration structure with crosslinked protein; 3)The easy penetration of LB on wood surface and formed more interlock with wood. The denser structure created by LB and PAE mixture improved the thermal stability and decreased the crystallinity of cured adhesive. The usage of the LB and PAE mixture increased solid content by 35.5%, meanwhile, makes its viscosity acceptable for the industrial application.

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Section: Introductionmentioning

confidence: 99%

Improve Performance of Soy Flour Based-Adhesive with a Lignin Based Resin

Zhang

Zhu

et al. 2017

Preprint

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“…In summary, environmental and application properties of wooden materials are more or less in uenced by the type of glue, biocide, and other additives [63]. Some of these factors can also a ect the adhesion forces on the phase interfaces "wood-glue" and subsequently the moisture and strength properties of wooden composites including PBs.…”

Section: Application Properties Of Pbsmentioning

confidence: 99%

Biological Resistance and Application Properties of Particleboards Containing Nano‐Zinc Oxide

Reinprecht

Iždinský

Vidholdová

2018

Advances in Materials Science and Engineering

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Special particleboards (PBs) proposed for kitchens, bathrooms, hospitals, and some other specific products for interiors should have a sufficient resistance against bacteria, molds, and decaying fungi. is work deals about effects of zinc oxide nanoparticles (nano-ZnO) added into melamine-urea-formaldehyde (MUF) glue in the amounts of 0, 2, 6, 12, or 24% wt. on selected biological, moisture, and strength properties of laboratory-produced one-layer PBs. e nano-ZnO-treated PBs had a higher biological resistance: (1) against the Gram-positive bacterium Staphylococcus aureus by up to ca. 70% and the Gram-negative bacterium Escherichia coli by up to 50%, since their bacterial activities at using 1.0 McFarland bacterial inoculum decreased from 0.38-0.40 by up to 0.12-0.19 × 10 8 CFU/ml; (2) against the molds Penicillium brevicompactum and Aspergillus niger by up to ca. 50-63%, since their growth intensities (0-4) on the top surfaces of treated PBs decreased according to a modified EN 15457 from 2.33-2.67 by up to 1.17-1.0; (3) against the brown-rot fungus Coniophora puteana by up to 85.7%, since their weight losses reduced according to a modified ENV 12038 from 17.4% by up to 2.5%. e presence of nano-ZnO in PBs uninfluenced their swelling, water absorption, and bending strength; however, it decreased their internal bond strength by up to 38.8%.

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“…Finally, the review by Pizzi depicts the context of green chemistry for numerous industrial products. It covers the field of elimination of aldehydes from the wood panel adhesives, the green adhesives, and the wood tannin conversion in new bio-based materials such as foams and bio-based plastics (Pizzi 2016).…”

Section: Annals Of Forest Science Was Launched During 1964 Asmentioning

confidence: 99%