Abdenour Chenni

Water based polylactic acid (PLA)‐surface modified montmorillonite (MMt) nanocomposites as biobased formulations for paper coating were successfully developed using emulsification solvent evaporation method. Electrostatic and steric stabilization mechanisms have contributed to the production of stable emulsions up to 5 months at 23 ± 1°C, revealing...

Chitin and chitosan as green and active biomacromolecules were extracted from local seafood waste (shrimp shells). The extraction was carried out by a soft chemical process, followed by structural characteri-zation (FTIR, XRD, viscosity average molecular weight Mv _), thermal stabil-ity by TGA, and antibacterial tests. FTIR and XRD spectra confirme...

The effects of B2O3 addition on the sintering behaviour of BaTiO3-CaTiO3 (BCT) materials were investigated. (1-x) BaTiO3-x CaTiO3-y B2O3 (where x is 3 or 7 % mol. and 0 ≤ y ≤ 3 mol.% respectively). Pellets were prepared from BaTiO3 (BT) and CaTiO3 (CT) powders mixture and sintered at 1,200, 1,250, 1,300 and 1,350 oC, gradually in air for 3 h. The r...

In this study, blends were developed based on poly (lactic acid) (PLA) containing chitosan (CHS) extracted in our laboratory and an organically modified montmorillonite (cloisite 30B) at different amounts from 1 to 4 (in wt.-%). Tensile samples were prepared using twin-screw extrusion followed by injection molding, and films were obtained by press...

Plasticized and unplasticized chitosan films were successfully prepared by thermomechanical treatment, as a possible alternative route to solvent casting method. Acetic acid and lactic acid were used as solvents and glycerol was used as plasticizer with a fixed concentration of 25 wt.-%. The properties of the prepared samples were investigated demo...