“…The typical fibres shape, similar to the construction of bone tissue, was shown in FESEM examination. The hybrid biocomposite produced shows an excellent enhancement in the mechanical properties with an increased addition % weight of MWCNTs as reported in our previous study [33]. The results confirmed that the addition of the MWCNTs had improved the mechanical properties of biocomposite due to the increased crystallinity as exhibited in DSC results.…”
The objective of this study is to demonstrate how the effect of adding multi-walled carbon nanotubes (MWCNTs) nanoparticles to the (Hydroxyapatite /High-density polyethylene) bio-composites. In this investigation, the samples with various percentages of (MWCNTs) were fabricated by a hot-press technique. The morphological characteristics, roughness of the surface and thermal properties of the bio-composite samples (HA/HDPE/MWCNTs) were investigated. The excellent homo-geneous distribution of the internal fibrous network and microstructure arrangements were among the most prominent characteristics obtained through FE-SEM and AFM examinations. The degree of crystallinity showed that the (MWCNTs) additives enhance by an increase of approximately (35%), compared with pure sample (without addition MWCNTs). Based on the experimental results obtained, the fabrication of the presented bio-composites sample exhibited the excellent characteristics that make them promising material for biomedical application as a substitute material for hard tissue likes bone reconstruction.
“…The typical fibres shape, similar to the construction of bone tissue, was shown in FESEM examination. The hybrid biocomposite produced shows an excellent enhancement in the mechanical properties with an increased addition % weight of MWCNTs as reported in our previous study [33]. The results confirmed that the addition of the MWCNTs had improved the mechanical properties of biocomposite due to the increased crystallinity as exhibited in DSC results.…”
The objective of this study is to demonstrate how the effect of adding multi-walled carbon nanotubes (MWCNTs) nanoparticles to the (Hydroxyapatite /High-density polyethylene) bio-composites. In this investigation, the samples with various percentages of (MWCNTs) were fabricated by a hot-press technique. The morphological characteristics, roughness of the surface and thermal properties of the bio-composite samples (HA/HDPE/MWCNTs) were investigated. The excellent homo-geneous distribution of the internal fibrous network and microstructure arrangements were among the most prominent characteristics obtained through FE-SEM and AFM examinations. The degree of crystallinity showed that the (MWCNTs) additives enhance by an increase of approximately (35%), compared with pure sample (without addition MWCNTs). Based on the experimental results obtained, the fabrication of the presented bio-composites sample exhibited the excellent characteristics that make them promising material for biomedical application as a substitute material for hard tissue likes bone reconstruction.
“…The 12 mm diameter with 5 mm thickness sample was coated with a thin layer of gold for each composite, to allow heat build-up in samples and improve electrostatic charging during the scanning, Fig. 3 a shows the samples after gold coating in SEM device 42 , 43 . Figure 3 ( a ) The covered specimens in SEM chamber, ( b ) cement specimen with hardness test notch, ( c )The Teflon molds as three parts: base, body and presser, ( d , e ) Compression strength specimen with 6 mm diameter and 12 mm height, ( f ) bone cement compression specimen before and ( g ) specimen after compression test, ( h )The Teflon mold parts: base and body part of bending test, ( i ) Bending specimen width 10 mm, ( j ) Bending specimen length 75 mm, ( k ) Bone cement bending specimen before bending test and ( l ) specimen after the bending test.…”
In this work, the effect of adding Magnesium Oxide (MgO) and Titanium Dioxide (TiO2) nanoparticles to enhance the properties of the bone cement used for hip prosthesis fixation. Related to previous work on enhanced bone cement properties utilizing MgO and TiO2, samples of composite bone cement were made using three different ratios (0.5%:1%, 1.5%:1.5%, and 1%:0.5%) w/w of MgO and TiO2 to determine the optimal enhancement ratio. Hardness, compression, and bending tests were calculated to check the mechanical properties of pure and composite bone cement. The surface structure was studied using Fourier transform infrared spectroscopy (FTIR) and Field emission scanning electron microscopy (FE-SEM). Setting temperature, porosity, and degradation were calculated for each specimen ratio to check values matched with the standard range of bone cement. The results demonstrate a slight decrease in porosity up to 2.2% and degradation up to 0.17% with NP-containing composites, as well as acceptable variations in FTIR and setting temperature. The compression strength increased by 2.8% and hardness strength increased by 1.89% on adding 0.5%w/w of MgO and 1.5%w/w TiO2 NPs. Bending strength increases by 0.35% on adding 1.5% w/w of MgO and 0.5% w/w TiO2 NPs, however, SEM scan shows remarkable improvement for surface structure.
“…The 12 mm diameter with 5mm thickness sample was coated with a thin layer of gold for each composite, to allow heat build-up in samples and improve electrostatic charging during the scanning, Fig. 3 (b) shows the samples after gold coating in SEM device [36] [37].…”
Section: Field Emission Scanning Electron Microscopy (Fe-sem)mentioning
This paper studies the effect of adding Magnesium Oxide (MgO) and Titanium Dioxide (TiO2) nano particles to enhance the properties of hip joint bone cement. Related to previous work of enhanced bone cement properties by using MgO and TiO2, samples of composite bone cement using three different ratios (0.5%, 1% and 1.5%) w/w of MgO and TiO2 were prepared to calculate the best enhancement ratio. Hardness, compression and bending tests were calculated to check the mechanical properties of pure and composite bone cement. The surface structure was studied using Fourier transform infrared spectroscopy (FTIR) and Field emission scanning electron microscopy (FE-SEM). Setting temperature, porosity and degradation were calculated for each specimen ratio to check values match with standard range of bone cement. Results show remarkable improvement for mechanical and surface structure properties with acceptable changes in FTIR, setting temperature, degradation percentage and bending test relative to pure bone cement.
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