Effect of Low Content of Al2O3 Nanoparticles on the Mechanical and Tribological Properties of Polymethyl Methacrylate as a Denture Base Material
Gallab, M., Taha, M., Rashed, A., Nabhan, A. (2022). Effect of Low Content of Al2O3 Nanoparticles on the Mechanical and Tribological Properties of Polymethyl Methacrylate as a Denture Base Material. EKB Journal Management System, 65(8), 1-9. doi: 10.21608/ejchem.2022.88597.4786
Mahmoud Gallab; Mohamed Taha; Ahmed Rashed; Ahmed Nabhan. "Effect of Low Content of Al2O3 Nanoparticles on the Mechanical and Tribological Properties of Polymethyl Methacrylate as a Denture Base Material". EKB Journal Management System, 65, 8, 2022, 1-9. doi: 10.21608/ejchem.2022.88597.4786
Gallab, M., Taha, M., Rashed, A., Nabhan, A. (2022). 'Effect of Low Content of Al2O3 Nanoparticles on the Mechanical and Tribological Properties of Polymethyl Methacrylate as a Denture Base Material', EKB Journal Management System, 65(8), pp. 1-9. doi: 10.21608/ejchem.2022.88597.4786
Gallab, M., Taha, M., Rashed, A., Nabhan, A. Effect of Low Content of Al2O3 Nanoparticles on the Mechanical and Tribological Properties of Polymethyl Methacrylate as a Denture Base Material. EKB Journal Management System, 2022; 65(8): 1-9. doi: 10.21608/ejchem.2022.88597.4786

Effect of Low Content of Al2O3 Nanoparticles on the Mechanical and Tribological Properties of Polymethyl Methacrylate as a Denture Base Material

Egyptian Journal of Chemistry
Article 1, Volume 65, Issue 8, August 2022, Page 1-9  XML PDF (889.85 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2022.88597.4786
View on SCiNiTO View on SCiNiTO
Authors
Mahmoud Gallab email 1, 2; Mohamed Taha3, 4; Ahmed Rashed1; Ahmed Nabhanorcid 1
1Production Engineering and Mechanical Design Department, Minia University, El-Minia 61111, Egypt
2Micro-Nano Mechanical Science and Engineering Department, Nagoya university, Nagoya 464-8601, Japan
3Mechanical Engineering Department, College of Engineering and Technology, Arab Academy of Science, Technology, and Maritime Transport, Sadat Road – P.O. Box 11, Aswan, Egypt
4Department of Materials Engineering and Mechanical Design, Faculty of Energy Engineering, Aswan University, Aswan, 81542, Egypt
Abstract
In this study, the mechanical and tribological properties of polymethyl methacrylate (PMMA)-based dentures strengthened by a low content of alumina (Al2O3) nanoparticles were evaluated. PMMA nanocomposites with different weight fractions (0.2, 0.4, 0.6, 0.8, and 1 wt%) of Al2O3 were fabricated, and a sample of pure PMMA was used as a control. Compression, hardness, and wear tests were conducted to investigate the effect of a low Al2O3 filler content on the mechanical and tribological properties of PMMA. The addition of Al2O3 filler improved the mechanical and tribological characteristics of PMMA. The highest elastic modulus and compressive yield strength (3.56 GPa and 138.21 MPa, respectively) were obtained using the PMMA sample with 0.6 wt% of nanoalumina, which represent an increase of 20.27% and 14.7%, respectively, compared with those of the pure PMMA. The fracture toughness and hardness were improved with the increase in the filler content until it reached 0.8 and 1.00 wt%, respectively. The tribological characteristics of PMMA also improved with the addition of Al2O3 nanoparticles. The least coefficient of friction (COF) and wear rate were obtained at a filler content of 0.6 wt%. Therefore, the addition of low amounts of Al2O3 to PMMA-based resins can improve their mechanical and tribological properties such as hardness, elastic modulus, fracture toughness, COF, and wear resistance.
Keywords
PMMA composites; Al2O3; Mechanical properties; Friction; Wear rate
Statistics
Article View: 815
PDF Download: 880