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European Journal of Wood and Wood Products

Erschienen in:

04.08.2022 | Original Article

Thermal analysis and aging monitoring of biosourced resins

verfasst von: Noel Konai, Lionel Karga Tapsia, Antonio Pizzi, Benoit Ndiwe, Florent Biyeme, Joseph Voufo, Laynde Tawe, Raidandi Danwe, Lucien Meva’a

Erschienen in: European Journal of Wood and Wood Products | Ausgabe 6/2022

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Abstract

The resins developed with Fillaeopsis discophora tannin extract using either Vitellaria paradoxa trunk exudate as bio hardener or glyoxal as hardener were thermally analyzed using thermomechanical (TMA) and thermogravimetric (TGA) analysis. A microscopic interpretation of glass transition, physical aging, and phase segregation was analyzed and the relative activation energy was determined. The activation energies of gelling of the resins above are 57,658 and 52,967 J. mol⁻¹, respectively. Their glass transition temperatures are 172 °C and 149 °C respectively. The tannin extract used in the development of these two resins is of a condensed polyflavonoid type linked to some furan residues. The resin developed with the Vitellaria paradoxa exudate as a bio-hardener has a good thermal behavior and it degrades slower than that with glyoxal as hardener.

Vorheriger Artikel Performance of one-component polyurethane (1C-PUR) adhesives in the production of finger-joints fabricated from four planted forest species

Nächster Artikel Effects of bismuth-embedded wood particles on mechanical, physical, and gamma-shielding properties of wood/poly(vinyl chloride) composites

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Titel: Thermal analysis and aging monitoring of biosourced resins
verfasst von: Noel Konai
Lionel Karga Tapsia
Antonio Pizzi
Benoit Ndiwe
Florent Biyeme
Joseph Voufo
Laynde Tawe
Raidandi Danwe
Lucien Meva’a
Publikationsdatum: 04.08.2022
Verlag: Springer Berlin Heidelberg
Erschienen in: European Journal of Wood and Wood Products / Ausgabe 6/2022
Print ISSN: 0018-3768
Elektronische ISSN: 1436-736X
DOI: https://doi.org/10.1007/s00107-022-01868-6

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