Production of polyvinyl alcohol/natural hydroxyapatite/magnesia/silicon carbide hybrid composites for use in orthopedic applications: Optical, electrical, and mechanical propertie

Abulyazied, Dalia E.; Alturki, Asma M.; Alatawi, Ayshah S.; Bousbih, R.; Alamlah, R.; Abomostafa, H. M.; El Komy, G. M.; Taha, Mohammed A.; Youness, Rasha A.

doi:10.21608/ejchem.2024.247968.8852

Production of polyvinyl alcohol/natural hydroxyapatite/magnesia/silicon carbide hybrid composites for use in orthopedic applications: Optical, electrical, and mechanical propertie

Document Type : Original Article

Authors

¹ Physics Department, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia

² Department of Petrochemical, Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, Egypt

³ Chemistry Department, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia

⁴ Physics Department, Faculty of Science, Menoufia University, ShebinElkom, Egypt

⁵ Electron Microscope and Thin Film Department, National Research Center, Dokki, Giza 12622, Egypt

⁶ Solid State Physics Department, National Research Centre, El Buhouth St., 12622 Dokki, Giza, Egypt.

⁷ Pharos University in Alexandria, Smoha, Egypt

⁸ Spectroscopy Department, National Research Centre, El Buhouth St., 12622 Dokki, Giza, Egypt.

10.21608/ejchem.2024.247968.8852

Abstract

Biopolymers are promising materials that could be widely used in bone replacement applications if both their low mechanical and bioactivity properties are improved. In this regard, the main objective of this study was to improve the mechanical and biological properties in addition to improving the optical and electrical properties to be suitable for use in fracture healing purposes. Therefore, in this study, a batch of poly(vinyl alcohol; PVA) and biologically extracted hydroxyapatite (BHA) was mechanically blended in a ratio of (70:30 vol.%). Then, magnesium oxide (MgO) and silicon carbide (SiC) were added to this batch with different volume percentages and hot-pressed at 120 °C. The physical, mechanical, optical and electrical properties were measured. Additionally, the ability of these samples to form an apatite layer on their surfaces was evaluated by soaking them in simulated body fluid (SBF) and then examined by scanning electron microscopy (SEM). The results obtained clarified that the mechanical properties in terms of microhardness, compressive strength, Young’s modulus, longitudinal modulus, bulk modulus, and shear modulus were improved due to these additives by 64.45, 33.33, 29.51, 31.14, 30.14 and 27.58%, respectively. It was also observed that the presence of BHA and MgO nanoparticles enhanced the bioactivity, optical and electrical properties of the prepared samples. The results obtained are encouraging and the aim of this study has been successfully achieved.

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