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The extraction of p...
The extraction of polyol for the synthesis of lignin-based polyurethane coatings – a review
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- Hassani Khorshidi, Fatemeh (författare)
- Department of Wood Science and Technology, Faculty of Natural Resources, Tarbiat Modares University, Tehran, Iran
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- Kazemi Najafi, Saeed (författare)
- Department of Wood Science and Technology, Faculty of Natural Resources, Tarbiat Modares University, Tehran, Iran
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- Najafi, Farhood (författare)
- Department of Resin and Additives, Institute for Color Science and Technology, Tehran, Iran
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- Pizzi, Antonio (författare)
- LERMAB, University of Lorraine, Nancy, France
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- Behrooz, Rabi (författare)
- Department of Wood Science and Technology, Faculty of Natural Resources, Tarbiat Modares University, Tehran, Iran
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- Sandberg, Dick (författare)
- Luleå tekniska universitet,Träteknik
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(creator_code:org_t)
- Taylor & Francis, 2024
- 2024
- Engelska.
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Ingår i: Wood Material Science & Engineering. - : Taylor & Francis. - 1748-0272 .- 1748-0280. ; 19:3, s. 794-802
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Lignin, with its availability, aromatic structure, and abundant hydroxyl groups, presents a promising source of green bio-based polyols. The environmental implications of oil-derived polymeric materials have sparked interest in renewable biopolymers and composites from natural sources, including polyurethane composites. This review investigates optimal methods for lignin extraction for use in lignin-based polyurethane coatings, scrutinizes alternatives to oil-based polyols, compares existing chemical modification methods of lignin for use in polyurethane coatings and resins, and discusses the control of synthesis and final properties of lignin-based polyurethane, emphasizing the crucial role of the stoichiometric ratio of NCO groups in the isocyanate to the total OH groups in a lignin-based polyol. While numerous studies have focused on polyurethanes with and without isocyanate, this review describes the synthesis of lignin into bio-polyols and its potential as a substitute for petroleum-based polyols, highlighting organosolv and Kraft lignin as optimal choices for replacing oil-based polyols in polyurethanes due to their high purity.
Ämnesord
- NATURVETENSKAP -- Kemi -- Organisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Organic Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Polymerteknologi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Polymer Technologies (hsv//eng)
Nyckelord
- Non-isocyanate polyurethane
- coatings
- wood
- Träteknik
- Wood Science and Engineering
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