Effect of Nano CuO Doping on Structural, Thermal and Optical Properties of PVA/PEG Blend
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Effect of Nano CuO Doping on Structural, Thermal and Optical Properties of PVA/PEG Blend Ali A. Alhazime1 Received: 17 March 2020 / Accepted: 4 May 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Copper oxide (CuO) nanoparticles were synthesized by sol gel method. Copper oxide/polyvinyl alcohol/polyethylene glycol (CuO/PVA/PEG) doped blends with concentrations (3%, 5%) of CuO nanoparticles were prepared by casting technique. X-ray diffraction data (XRD) and Fourier transform infrared (FTIR) techniques confirmed the formation of new-doped nano-blends. The absorption spectra revealed an apparent change with doping concentration. Different optical parameters were discussed in detail and proved to be directly affected by nanoparticles doping concentrations. The energy gap values for polymer blends decreased from 5.3 to 4.7 eV with the addition of CuO nanoparticles. The study of the effect of CuO nanoparticles incorporation in (PVA/PEG) blends has attracted a little interest in the literature; therefore, this study is considered as a new research one. Keywords Nano CuO · PVA/PEG · XRD · Optical · Thermal
1 Introduction Polyvinyl alcohol (PVA) is the most well-known versatile water soluble polymer characterized with a wide range of feasible applications in different industrial and research fields because of its magnificent characteristics such as biodegradable, biocompatible and highly adhesive material, excellent mechanical properties [1], low cost, ease of treatment as film forming, highly elastic and highly stable photosensitive material [2], high dielectric properties and good charge storage material [3]. PVA can be blended with other polymers to form polymer complexes by hydrogen bonding. Hydroxyl groups that is located on the carbon chain backbone of the polymer are considered the main source of the hydrogen bonding [4, 5]. On the other hand, polyethylene glycol (PEG) is a highly water soluble and nontoxic material, besides, its solubility in most organic solvents is considerably high. Moreover, when PEG mixed with other polymeric material, most of these properties can be shared within the resulting blend [6]. Introducing metal oxide nanoparticles into polymers varies the physical and chemical properties * Ali A. Alhazime [email protected] 1
Physics Department, Taibah University, Medinah, Munawara, Saudi Arabia
of the resulting nanocomposite material. Of course, these properties depend on the type of the nanoparticles used and their preparation method. Many authors have investigated the effect of dispersing metal oxide nanoparticles into (PVAPEG) polymer matrix and they represented detailed information about the compositional variations occurred. Titanium dioxide nanoparticles (TiO2) effect on (PVA-PEG) blends has been extensively studied and studies showed an enhancement in the humidity sensing behavior of (PVA-PEG) polymer blends [7] and an increase in their dielectricity and bioactivity behaviour and the samples were non-toxic [8–11]. Others observed an increment in
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