Optical and Dielectric Properties of PMMA/α-Fe2O3–ZnO Nanocomposite Films
| Autor: | Onur Güler, Ümit Alver, Ayhan Yazgan, Celal Duran, M. Tascioglu, Hamdullah Çuvalci, Sümran Bilgin, Haydar Kaya, Mustafa Aslan |
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| Rok vydání: | 2019 |
| Předmět: |
Permittivity
Materials science Nanocomposite Polymers and Plastics Scanning electron microscope 02 engineering and technology Dielectric 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Poly(methyl methacrylate) 0104 chemical sciences visual_art Materials Chemistry visual_art.visual_art_medium Dielectric loss Composite material 0210 nano-technology Ball mill Powder mixture |
| Zdroj: | Journal of Inorganic and Organometallic Polymers and Materials. 29:1514-1522 |
| ISSN: | 1574-1451 1574-1443 |
| Popis: | In this study, α-Fe2O3–ZnO mixed particles were incorporated into the poly methyl methacrylate (PMMA) matrix by using solvent casting process. In order to prepare a powder mixture, mechanical milling process was used. α-Fe2O3 synthesized by precipitation method and ZnO nanoparticles were mixed with same amount and milled with planetary type ball milling machine for 1 h. Morphological and structural examinations of the produced powders were conducted with scanning electron microscopy (SEM) and X-ray diffraction (XRD). Optical and dielectrical properties of composite materials produced with different amount of reinforcement (0.1 wt%, 0.5 wt% and 1.0 wt%) were examined by using UV–Vis spectrophotometry and vector network analyzer (VNA). It was observed that optical transmittance reduced with increasing reinforcement amount. Dielectric properties of produced pellet composites with 4 mm thickness were conducted between 70 and 110 GHz and the results showed that the real and complex permittivity and dielectric loss values of PMMA/α-Fe2O3 is higher than those of neat PMMA, PMMA/ZnO and PMMA/α-Fe2O3–ZnO. |
| Databáze: | OpenAIRE |
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