Bengang Zhang1,*, Antonio Pizzi2,*, Mathieu Petrissans1, Anelie Petrissans1, Colin Baptiste1
Journal of Renewable Materials, Vol.11, No.12, pp. 4097-4121, 2023, DOI:10.32604/jrm.2023.029761
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 –NH2 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 –NH2 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… More >
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