Elaboration de films polymériques à partir d’un dérivé cellulosique

Abstract

In this study, a practical approach for the preparation of multifunctional composite films by introducing nanoscale fillers into a polymer matrix was proposed. The nanocomposite films were prepared in four distinct steps. The first step involved preparing films without zinc oxide (ZnO) and CTAB. The second step consisted of incorporating zinc oxide nanoparticles (ZnO NPs) into a hydroxypropylcellulose (HPC) polymer matrix. The third step involved adding CTAB to the HPC polymer matrix. Finally, the fourth step included adding both ZnO and CTAB to the HPC polymer matrix. The results show that films made from HPC with a pH of 5 are clear. The transparency of films containing the dispersant (CTAB) indicates complete compatibility between HPC and CTAB at the concentrations used. On the other hand, the reduced transparency of films containing ZnO reveals a complete incompatibility between HPC and ZnO at the concentrations used. However, films containing both the dispersant (CTAB) and ZnO demonstrate total compatibility between HPC, CTAB, and ZnO at the concentrations used. These findings are promising and open interesting prospects for further research in this field, aiming to gain a better understanding of the properties of composite films. The study will be complemented by the following analyses: infrared spectroscopy (IR), UV-visible spectroscopy, and optical microscopy.