RHAZI Naima
Material Engineering Laboratory (LIMAT-ETM), Science Faculty Ben M’sik, University Hassan II of Casablanca, Boulevard Cdt Driss Harti, BP.7955, Ben M’sik, Casablanca, Morocco
Title: Bio-based wood adhesives from Moroccan barks of Acacia Mollissima: Applied to bonding plywood panels
Biography
Biography: RHAZI Naima
Abstract
With the increase of the harmful effects of fossil-based adhesives, the elaboration of adhesives from renewable resources was increasingly in demand by the industries eco-friendly. So, in order to present some solutions for these industries, the petroleum phenolic compounds were replaced in this study by natural and renewable resources. In this research, we propose to extract phenolic compounds from the Moroccan bark of Acacia Mollissima using a simple extraction method (a traditional maceration). We choose this spice because it contains a higher content of condensed tannins (already used to made bio-based wood adhesives). The physical, thermal, and thermo-mechanical properties of the developed adhesives were evaluated according to normative tests. The good quality of the adhesives elaborated permitted their use to made bio-based wood composites. In this study, plywood with three panels was developed and the bonding quality of these panels was compared with a standard formulation of synthetic adhesives. The mechanical properties of the plywood panels produced with bio-based adhesives showed an excellent quality of the panels compared with the standard formulations already used to made wood panels and allowed their applications in a dry application when the humidity exceed 60% a few week per an.