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Critical Links Governing Performance of Self-binding and Natural Binders for Hot-pressed Reconstituted Lignocellulosic Board without Added Formaldehyde : A Review

Abstract : The production of fiberboard, particleboard, and related hot-pressed biomass products can convert small, relatively low-valued pieces of wood into valuable products. There is strong interest in being able to manufacture such products without the addition of formaldehyde, which is a health hazard during both production and use. This article reviews literature describing various challenges that need to be faced in order to achieve satisfactory bonding properties in hot-pressed bio-based board products without the addition of formaldehyde. Bonding mechanisms are examined in the form of a hypothesis, in which the strength development is represented by a chain with four links. Failure of a board is expected to occur at the weakest of these mechanistic links, which include mechanical contact, molecular-scale wetting and contact, various chemical-based linkages, and structural integrity. The most promising technologies for environmentally friendly production of hot-pressed board with use of lignocellulosic materials tend to be those that favor success in the development of at least three of the mechanistic links in the hypothetical chain.
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https://hal.univ-lorraine.fr/hal-03110109
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Submitted on : Thursday, January 14, 2021 - 11:48:56 AM
Last modification on : Monday, March 7, 2022 - 2:44:33 PM

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Martin Hubbe, Antonio Pizzi, Haiyang Zhang, Rasmina Halis. Critical Links Governing Performance of Self-binding and Natural Binders for Hot-pressed Reconstituted Lignocellulosic Board without Added Formaldehyde : A Review. International Journal of Thermal Sciences, Elsevier, 2018, 13 (1), pp.263-271. ⟨10.15376/biores.13.1.Hubbe⟩. ⟨hal-03110109⟩

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