Open Access
ARTICLE
Self-Cross-Linked Tannin-Aminated Tannin Surface Coatings for Particleboard
Bengang Zhang1,*, Antonio Pizzi2,*, Mathieu Petrissans1, Anelie Petrissans1, Colin Baptiste1
1
LERMAB, I.U.T. Hubert Curien, University of Lorraine, Épinal, 88000, France
2
LERMAB-ENSTIB, University of Lorraine, Epinal, 88000, France
* Corresponding Authors: Bengang Zhang. Email: bengang ; Antonio Pizzi. Email:
Journal of Renewable Materials 2023, 11(12), 4097-4121. https://doi.org/10.32604/jrm.2023.029761
Received 07 March 2023; Accepted 14 April 2023; Issue published 10 November 2023
Abstract
Aminated tannins were prepared by reacting mimosa condensed tannin extract with ammonia yielding the substitution of many, if not all of the tannin hydroxyl groups with –NH
2 groups. A tannin-aminated tannin (ATT)
particleboard coating was then prepared by reacting raw tannin extract with aminated tannin extract and thus
cross-liking the two by substituting tannin’s hydroxyl groups with the –NH
2 groups on the aminated tannin to
form –NH-bridges between the two. The resulting particleboard coating gave encouraging results when pressed
at 180°C for 3 min. Conversely, the system in which tannin was reacted/cross-liked with urea (ATU) by a similar
amination reaction did not perform as well as the ATT system, and this even when a higher curing temperature
and longer hot press time were used. In particular its water repellence was worse probably due to the presence of
urea and such a system lower reactivity. Nonetheless, substituting the tannin –OHs with the urea –NH
2 groups
appeared to also take place. ATT gave better results than ATU as regards water repellence and mechanical resistance as shown by the cross cut test. The ATT system was shown to be between 95% and 98% biosourced. The
difference appeared to be due, by TMA analysis, to the much faster formation of the ATT hardened network leading to a better cross-linked polymer coating. The chemical species formed for both the ATT and ATU system were
studied by MALDI ToF and CP MAS
13C NMR.
Keywords
Cite This Article
APA Style
Zhang, B., Pizzi, A., Petrissans, M., Petrissans, A., Baptiste, C. (2023). Self-cross-linked tannin-aminated tannin surface coatings for particleboard. Journal of Renewable Materials, 11(12), 4097-4121. https://doi.org/10.32604/jrm.2023.029761
Vancouver Style
Zhang B, Pizzi A, Petrissans M, Petrissans A, Baptiste C. Self-cross-linked tannin-aminated tannin surface coatings for particleboard. J Renew Mater. 2023;11(12):4097-4121 https://doi.org/10.32604/jrm.2023.029761
IEEE Style
B. Zhang, A. Pizzi, M. Petrissans, A. Petrissans, and C. Baptiste "Self-Cross-Linked Tannin-Aminated Tannin Surface Coatings for Particleboard," J. Renew. Mater., vol. 11, no. 12, pp. 4097-4121. 2023. https://doi.org/10.32604/jrm.2023.029761