INSIGHT INTO THE EFFECT OF TI/ZR OXIDE HYBRID PARTICLES ON DENTAL COMPOSITES: PARTICLE SYNTHESIS AND CHARACTERIZATION AND THE MECHANICAL BEHAVIOR OF COMPOSITES

Authors : Zerin YEŞİL ACAR

Pages : 200-219

Doi:10.59313/jsr-a.1217343

View : 38 | Download : 9

Publication Date : 2023-03-29

Article Type : Research Paper

Abstract :Hybrid particles were synthesized with sol–gel-based hydrothermal method using alkoxide precursors, and the usability of these particles in dental composites was investigated. First, the effects of varying Ti/Zr and nacid/ nalkoxide ratios on the crystal and microstructure of the synthesized particles insert ignore into journalissuearticles values(Ti, Zr); hybrids were investigated. X-ray diffraction insert ignore into journalissuearticles values(XRD);, a particle size and a surface charge analyzer, thermogravimetric analysis insert ignore into journalissuearticles values(TGA);, Brunauer–Emmett–Teller insert ignore into journalissuearticles values(BET); analysis, and Fourier transform infrared insert ignore into journalissuearticles values(FTIR); analysis were used to reveal the structural parameters. ZTit-1, ZTit-4, and ZTit-6 particles were crystalline, while ZTit-2, ZTit-3, and ZTit-5 particles were amorphous. The zeta potential of the most stable ZTit-4 particle was 43.33 mV. ZTit-3 particles had the highest surface area and ZTit-5 particles had the highest micropore area. The presence of Ti/Zr oxide and titanate structures was determined by FTIR analysis. In the next step of the study, the mechanical behavior of the synthesized Ti/Zr-based hybrid particles in the dental organic matrix was investigated. The flexural, compressive strengths, and microhardness of the ZTit-4 composite with optimal flowability were 175±16.1 MPa, 242±7.8 MPa, and 32.9 Hv.
Keywords : ZrO2TiO2, Mixed oxide, Solgel, Composite, Flowability, Microhardness

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