Performance and Modification of Wood and Wood-Based Materials

Bekhta, Pavlo; Krystofiak, T.

doi:10.3390/f14050963

Cited by 4 publications

(2 citation statements)

References 12 publications

(10 reference statements)

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“…In a broader context, these issues are also dealt with in a book compiled by the editors Bekhta and Krystofiak [ 54 ].…”

Section: Alder Speciesmentioning

confidence: 99%

Perspectives on Using Alder, Larch, and Birch Wood Species to Maintain the Increasing Particleboard Production Flow

Reh,

Kristak,

Kral

et al. 2024

Polymers

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Particleboard, engineered wood products as part of a large family of wood composite materials, developed in use mainly in the 1950s and 1960s to utilize inferior wood and wood waste when good-quality wood was in short supply; the annual production capacity worldwide is over 100 million m3. It is also necessary to have a lot of wood raw material for its production, although raw material resources are limited on our planet. In addition to the main wood species, it is therefore possible to think about the wider use of alternative, lesser-known European species of alder, larch, and birch in particleboard production. These three wood species represent an eco-friendly and sustainable wood alternative to the conventional wood raw materials used. This review confirms the diversity of the use of these three species in different fields and proves their suitability in relation to particleboard production. Fundamental research is ongoing in certain universities to determine the proportional shares of use of these tree species in particleboard (in a certain weight proportion in their core layers) for the purpose of formulating the correct technology shares and rules for their application in the wood-based panel industry.

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“…In a broader context, these issues are also dealt with in a book compiled by the editors Bekhta and Krystofiak [ 54 ].…”

Section: Alder Speciesmentioning

confidence: 99%

Perspectives on Using Alder, Larch, and Birch Wood Species to Maintain the Increasing Particleboard Production Flow

Reh,

Kristak,

Kral

et al. 2024

Polymers

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“…1,2 For this reason, to improve the performance of wood-based composites different methods have been proposed. 3,4 One of the best methods proposed is the use of new coupling agents of higher quality than common coupling agents such as maleic anhydride grafted polymer (MAH-g) in the composite. 5,6 However, although MAH-g can improve the most properties of WPCs these types of coupling agent have high cost.…”

Section: Introductionmentioning

confidence: 99%

Maleated nanolignin as a new coupling agent for wood-plastic composites

Younesi-Kordkheili

2023

Journal of Composite Materials

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In this work, the influence of maleic anhydride-treated nanolignin as a coupling agent on the various properties of wood fiber-polypropylene composites was investigated. For this purpose, extracted lignin from Bagasse Soda black liquor was modified with maleic anhydride and then different ratios of unmodified and modified nanolignin (1, 3 and 5 wt%) were added to the wood fiber-polypropylene mixture. The composites were then manufactured by injection molding after mixing mechanically to the wood flour either virgin or maleated nanolignin and polypropylene. Structural and thermal properties of nanolignin after modification by maleic anhydride along with physical and mechanical properties of the manufactured composites were determined according to standard methods. The FTIR analysis indicated nanolignin rearrangements showing that some bonds changed or formed after its modification with maleic anhydride. The glass transition temperature of the nanolignin decreased by esterification from 130°C to 100°C. The panel testing results indicated that all physical and mechanical properties of the composites were continuously improved by increasing the maleated nanolignin content from 1 to 5wt%. Thus, the composites with maleated nanolignin presented higher dimensional stability and mechanical strength compared to those prepared with unmodified nanolignin. Scanning electron microscopy (SEM) showed that treatment with maleic anhydride improves the uniform dispersion of nanolignin in the polymer matrix. The manufactured WPCs can be used as interior and exterior building materials such as decks, sidings and etc.

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