Incorporation of Ag and ZnO nanoparticles produced by green synthesis into carboxymethyl cellulose-based polymer blend: investigation of dielectric and surface properties

Abstract In this study, the improvement of dielectric and surface properties of nanocomposites consisting of fluorine-containing poly(2-oxo-2-(pentafluorophenoxy)ethyl-2-methylprop-2-enoate) (PPFMA) and sodium carboxymethyl cellulose (NaCMC) polymers by reinforcing them with Silver (Ag) and Zinc oxide (ZnO) nanoparticles (NPs) was investigated. Ag and ZnONPs were obtained by biosynthesis method using Prunus spinosa extract and three different ratios (3%, 5%, and 7%) were incorporated into the nanocomposites by hydrothermal method. Surface morphology, chemical composition, crystal structure, and dielectric properties of the nanocomposites were determined by Fourier transform infrared spectrometer, scanning electron microscope-EDX, x-ray diffraction (XRD), and impedance spectroscopy analyses. XRD analyses showed that the crystal structures of Ag and ZnONPs were preserved and successfully integrated into the nanocomposite. The nanocomposite containing 5% Ag–ZnONPs had the highest dielectric constant (∼6.5, at 1 kHz), while the loss factor of the nanocomposite containing 7% Ag–ZnO was found to be higher (∼8.5 × 10 −1 , at low frequency). The impedance analysis determined that the nanocomposite containing 5% Ag–ZnONPs reached the highest conductivity value. According to the contact angle measurements, the water contact angles were measured as 47.56°, 45.74°, and 41.02° for 3%, 5%, and 7% Ag–ZnO contents, respectively, and it was observed that the surface became more hydrophilic with the increased of NP content. While the surface free energy value was 57.239 mN m −1 for the nanocomposite containing 3% Ag–ZnO, it increased to 59.222 mN m −1 for the nanocomposite containing 7% Ag–ZnONPs. The findings reveal that PPFMA-NaCMC/Ag–ZnO nanocomposites have potential in various industrial applications such as sensors, energy storage systems, biomedical coatings, and electromagnetic interference shields.

Hali tarjima qilinmagan