Reactivity, characterization and mechanical performance of particleboards bonded with tannin resins and bio hardeners from African trees

Gilbertiodendron dewevrei tannin extract was characterized using MALDI–ToF and CP MAS 13C NMR methods. These two characterization methods have proven that catechin gallate is the dominant constituent. Subsequently, the G. dewevrei tannin bio-resins hardened with the exudates of Vachellia nilotica, Vachellia seyal, Senegalia senegal, Acacia siebteriana and the fruit powder of V. nilotica from the extreme north of Cameroon were studied using gel...