Analysis of Spectroscopic, Optical and Magnetic Behaviour of PVDF/PMMA Blend Embedded by Magnetite (Fe<sub>3</sub>O<sub>4</sub>) Nanoparticles

• 作者: Laila H. Gaabour
• 来源期刊: 光学与光子学期刊(英文)
• 学科: 化学
• 关键词: PVDF/PMMA Blend Magnetite (Fe₃O₄) Nanoparticles XRD FT-IR UV-Vis Spectroscopy Magnetization Properties
• 年，卷（期）: 2020,（8）
• 页码范围: 197-209
• 页数: 13页
• 分类号: O63

摘要

In the present work, magnetite (Fe₃O₄) nanoparticles have been prepared by a simple chemical method. Polymer nanocomposites based on the blend between poly vinylamine fluoride (PVDF) and (methyl methacrylate) (PMMA) doped with different concentrations of Fe₃O₄ nanoparticles have been prepared. The structural, optical, and magnetization properties of the nanocomposite samples were studied using suitable techniques. The X-ray study reflected that the cubic spinal structure of pure Fe₃O₄ crystal. No small peaks or ripples were found in the X-ray spectra, conforming to good dispersion of Fe₃O₄ within PVDF/PMMA matrices. The FT-IR analysis demonstrated the miscibility between the PVDF and PMMA blend with the interaction between the polymer blend and Fe₃O₄. The values of the band gap from UV-Vis study were decreased up to 4.21 eV, 3.01 eV for direct and indirect measurements, respectively. The magnetization was measured as a function of the applied magnetic field in the range of −2000 - 2000 Oersted. The curves of the magnetization indicated a paramagnetic behavior of pure Fe₃O₄ nanoparticles and PVDF/PMMA-Fe₃O₄ nanocomposites. The values of saturation magnetization for pure Fe₃O₄ are nearly 75 emu/g, exhibiting a paramagnetic behavior, and it is decreased with the increase of Fe₃O₄ content.