Effect of Doping Sb₂O₃NPs on Morphological, Mechanical, and Dielectric Properties of PVA/PVP Blend Film for Electromechanical Applications

Abstract

In this work, antimony trioxide nanoparticles (Sb2O3NPs)-doped polyvinyl alcohol (PVA[Formula: see text]) and polyvinyl pyrrolidone (PVP[Formula: see text]) (i.e., PVAP@[Formula: see text]Sb2O3NPs, [Formula: see text], and 0.04) composite films were prepared using the casting method. Light optical microscopy (LOM), scanning electron microscopy (SEM), and Fourier infrared spectrums (FTIR) were used to investigate PVAP@[Formula: see text]Sb2O3NPs films. Sb2O3NPs were well dispersed within the matrix. FTIR showed a strong interaction between the matrix material and NPs. The density increased by up to 75% after adding 0.04[Formula: see text]wt.% of Sb2O3NPs. The mechanical ultrasound properties (MUS) were measured with different ultrasound frequencies in the ranges of (25, 30, 35, 40 and 45[Formula: see text]kHz). MUS coefficients such as ultrasonic velocity, absorption coefficient, and bulk modules were significantly improved after the impact of NPs by up to 20%, 115% and 230%, respectively. The reduction of electrical properties such as dielectric and loss constant was associated with an increase in frequency. The dielectric constant of PVAP@Sb2O3NPs was increased by about 80% after loading. AC electrical conductivity revealed an improvement with an increase in frequency and loading ratio. The results demonstrate a promising material for electromechanical, energy harvesting, and pressure sensor applications.

Antibacterial Activity and Optical Behavior for Restoration of Micro and Nano Dental Fillers Using Functional Graphene Nanosheets with Polymethyl Methacrylate

“…Wavelngth (nm) 320 420 520 620 720 820 920 1 020 1 120 6.0×10 10 5.1×10 12 1.0×10 13 1.5×10 13 2.0×10 13 2.5×10 13 Optical connectivity (Ω•cm −1 ) Fig. 16 Optical conductivity for the N1, N2, and N3 nanocomposites vs. wavelength.…”

“…Wavelngth (nm) 320 420 520 620 720 820 920 1 020 1 120 5.1×10 12 1.0×10 13 1.5×10 13 2.0×10 13 2.5×10 13 3.0×10 13 3.5×10 13 4.0×10 13 6.0×10 expansion in which Klebsiella could no longer grow. The hybrid dental filling (H1) was shown to be resistant to germs, and the zone of inhibition diameter against Klebsiella was discovered to be 16 mm.…”

“…According to the research, plastic builds up faster on resin composites than enamel or traditional restorations [11]. Therefore, modifications incorporating antibacterial properties are necessary to expand the service life of resin composite restorations [12,13]. In addition, composite dental filling materials have endured a series of qualitative and revolutionary advancements from the time they were first developed to the present.…”

Effect of Loading Corn Starch Nanoparticles on the Morphological, Optical, and Dielectric Behaviors of PVA/PMMA/PAAm Polymer Blend for Optoelectronic and Antibacterial Applications

“…[15]. PMMA was blended with various materials using various polymer and nanofiller methods to improve its optical [16,17], electrical [18,19], thermal stability [20], mechanical [21], and other properties [22]. PAAm is also a water-soluble polymer, with a wide range of industrial applications [23].…”