Experimental Design of AL2O3/MWCNT/HDPE Hybrid Nanocomposites for Hip Joint Replacement

Abstract

<jats:title>Abstract</jats:title> <jats:p>A hip fracture can be considered a major health issue facing the elderly fraction of humans. The loads exploited by the lower limbs are very acute and severe; in the femur, they can be several folds higher than the whole weight of the body. Mechanical properties like strength and hardness are challenging parameters which control the selection of the joint. In this research work, a modification has been performed by adding multi-layer carbon nanotubes to the High-density polyethylene thermoplastic polymer together with alumina. Prepared material well physiochemically characterized to check the morphology and the structure. Thermal gravimetric analysis (TGA) dedicates that the percentage of crystallization has been increased to 6% after adding Multi-wall carbon nanotubes (MWCNT)to the polymer. According to mechanical properties results, MWCNTs successfully increase in young’s module and hardness of the polymer. Optimization of the materials ration has been done and it has been found that hybrid composite with structure (2.4% AL 2 O 3 and 0.6% MWCNT) obtains high mechanical properties compared to other ratios with 3% MWCNTs and 5% MWCNTs. Also, moisture absorption decreased to 90% at with 5% MWCNT ratio. Experimental results of MTT assay of a normal human epithelial cell line (1- BJ1) over AL 2 O 3 /MWCNT@ HDPE showed a low value of cytotoxic activity, which proves that it is proper for medical use.AL 2 O 3 /MWCNT@HDPE composite showed promising results for further studies of artificial joints.</jats:p>

Thermomechanical evaluation of zinc oxide/hydroxyapatite/high‐density polyethylene hybrid composites

“…8 Different types of inorganic fillers are used to enhance the mechanical stability and thermal properties of polymers. There are few studies on the subject, and inorganic fillers, such as carbon nanotubes (CNTs), 11,12 graphene oxide (GO), 13 zirconia (ZrO 2 ), 14 hydroxyapatite (HA), 15 aluminium oxide (Al 2 O 3 ), 16 and titanium oxide (TiO 2 ) 17 have been used to enhance the thermomechanical properties of polymeric composites. For instance, Alsayed et al 8 fabricated a composite of high-density polyethylene (HDPE) with zinc ferrite (ZnFe 2 O 4 ) nanoparticles via a compression molding technique.…”

Mechanical and physical characterizations of compatibilizer‐free recycled plastics blend composites modified with carbon nanotube and clay nanofiller

“…16 The commonly used nanofillers in the polymer matrix nanocomposites are such as carbon nanotubes (CNT), 15 clay, 14 graphene, 16 and so forth. CNT have gained a huge attention in various fields such as biomedical 17 and electrical 18 owing to their unique structure of tube-shaped allotropes of carbon with ultra-high aspect ratio, 19 remarkable mechanical and electronic properties. 20 For instance, by adding 0.1-2.0 wt% of multiwalled carbon nanotubes (MWCNT) into PP, the mechanical and viscosity properties of the nanocomposites were improved.…”

“…Similar reduction in water absorption results with the incorporation of 5% CNT in HDPE composites due to the ease of its crystallization. 19 Nowadays, nanoclay has gained many interests from the researchers due to its potential propensity to alter the thermal behavior, 14 mechanical, 10 and functional properties of thermoplastic and thermoset polymers. 23 According to Alex et al, 24 the incorporation of 2 wt% of nanoclay had enhanced the mechanical properties and thermal stability through effectual interfacial interaction with the polymeric matrix.…”

Mechanical and thermal properties of date palm/kenaf fiber‐reinforced epoxy hybrid composites

“…The matrix keeps the fibers together and transmits the applied stress. [4] Various polymer composites with small nano reinforcements, namely, multiwalled carbon nanotubes, [5] nano-size alumina, [6] and graphene nanosheets, [7] were fabricated for industrial and biomedical applications. However, these nanocomposites consumed considerable energy during their development and required sophisticated fabrication setup, increasing the cost and complexity.…”