Untitled

Abstract

The spectroscopic and spectrometric methods such as MALDI TOF and FT MIR, thermomechanical analyzer and the Stiasny number were used to determine the adhesive performance of Monopetalanthus durandii tannin. This extract is a condensed tannin with the repetition of 62-64 Da corresponding to Chrysin (256 Da) and dicationized (2xNa+) form. The MOE of the bio adhesive developed using bio hardener at natural pH and its Stiasny number are respectively 6608.65 MPa and 74.2%.A UD biocomposite has been developed based this bio adhesive had very good tensile properties. Its tensile strength (MOR), young's modulus (MOE), yield strength (Rp 0.2 ) and plastic deformation (ε 0,2 ) are respectively 72 MPa; 8 GPa; 38.1 MPa and 0.7%.