Biomedical applications of polyethylene

Paxton, Naomi; Allenby, Mark C.; Lewis, Philip; Woodruff, Maria A.

doi:10.1016/j.eurpolymj.2019.05.037

Cited by 138 publications

(67 citation statements)

References 144 publications

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“…From a mechanical standpoint, the resultant composites can be processed using conventional techniques like extrusion or even 3D printing. The results obtained are comparable and prove that these are adequate materials for customized prostheses or implants 24–27 …”

Section: Introductionmentioning

confidence: 53%

Thermal and mechanical properties of UHMWPE/HDPE/PCL and bioglass filler: Effect of polycaprolactone

Espinosa

Escobar-Barrios

Escobedo

et al. 2020

J of Applied Polymer Sci

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Polymeric composites based on polyethylene, high‐density polyethylene (HDPE) and ultra‐high‐molecular‐weight polyethylene (UHMWPE) with polycaprolactone (PCL) and a ceramic filler (bioglass type) were studied in terms of their thermal and mechanical behavior. Two polyethylene ratios (10/90 and 30/70% wt/wt of UHMWPE/HDPE) and two PCL content ratios (5% and 10% wt/wt) were used. The obtained composites were characterized by differential scanning calorimetry, melt flow index, Fourier transform infrared spectroscopy, scanning electron microscopy, and X‐ray diffraction. The results indicate a nonchemical interaction between polyethylene, especially the UHMWPE, and PCL and that the composites' thermal transitions vary from the parent polymers and depend on the PCL concentration. The PCL's melting temperature in the composite was reduced, showing a new one. Also, the melting enthalpy of polyethylene was reduced when the concentration of PCL increased. The mechanical behavior depends on both the polyethylene ratio and the PCL content. The composite with 30% wt/wt of UHMWPE and 10% wt/wt of PCL showed the highest toughness value due to the good interaction between polymers. These new composites may be attractive for biomedical applications and could be evaluated, for example, as materials for prostheses.

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Section: Introductionmentioning

confidence: 53%

Thermal and mechanical properties of UHMWPE/HDPE/PCL and bioglass filler: Effect of polycaprolactone

Espinosa

Escobar-Barrios

Escobedo

et al. 2020

J of Applied Polymer Sci

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show abstract

“…Its processing is achieved in rubbery phase. Despite the poor tensile strength and stiffness of the alma matter, its high toughness, abrasion resistance, impact strength, chemical and stress cracking resistance justifies its use as machine moving parts, gears, bearings, replacements for steel cable on ship, fibers for bulletproof vest, artificial prothesis for hip and knee replacements [13], and cardiovascular stents [14].…”

Section: Polyethylenementioning

confidence: 99%

Recycled Plastics and Nanoparticles for Green Production of Nano Structural Materials

Bello¹,

Kolawole²

2020

Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications

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“…It possesses high resistance against impact, fatigue, chemical corrosion and abrasion, which stemmed from effective load transfer to its long linear backbone. This polymer also has a remarkable self-lubricating, low friction coefficient and good biocompatibility [ 2 , 3 , 4 ] that enable its application in various fields including aerospace and industrial machineries (i.e., pipes, panels, bars, gears), microelectronics and joint replacement or also known as arthroplasty (i.e., hip liner, tibial inserts) [ 5 , 6 , 7 ]. However, relatively low Young’s modulus and surface hardness of UHMWPE could limit the sustainability of this polymer against wear as a result of contact and slip with harder counterpart such as metal under repeated motion [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Melt- vs. Non-Melt Blending of Complexly Processable Ultra-High Molecular Weight Polyethylene/Cellulose Nanofiber Bionanocomposite

et al. 2021

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The major hurdle in melt-processing of ultra-high molecular weight polyethylene (UHMWPE) nanocomposite lies on the high melt viscosity of the UHMWPE, which may contribute to poor dispersion and distribution of the nanofiller. In this study, UHMWPE/cellulose nanofiber (UHMWPE/CNF) bionanocomposites were prepared by two different blending methods: (i) melt blending at 150 °C in a triple screw kneading extruder, and (ii) non-melt blending by ethanol mixing at room temperature. Results showed that melt-processing of UHMWPE without CNF (MB-UHMWPE/0) exhibited an increment in yield strength and Young’s modulus by 15% and 25%, respectively, compared to the Neat-UHMWPE. Tensile strength was however reduced by almost half. Ethanol mixed sample without CNF (EM-UHMWPE/0) on the other hand showed slight decrement in all mechanical properties tested. At 0.5% CNF inclusion, the mechanical properties of melt-blended bionanocomposites (MB-UHMWPE/0.5) were improved as compared to Neat-UHMWPE. It was also found that the yield strength, elongation at break, Young’s modulus, toughness and crystallinity of MB-UHMWPE/0.5 were higher by 28%, 61%, 47%, 45% and 11%, respectively, as compared to the ethanol mixing sample (EM-UHMWPE/0.5). Despite the reduction in tensile strength of MB-UHMWPE/0.5, the value i.e., 28.4 ± 1.0 MPa surpassed the minimum requirement of standard specification for fabricated UHMWPE in surgical implant application. Overall, melt-blending processing is more suitable for the preparation of UHMWPE/CNF bionanocomposites as exhibited by their characteristics presented herein. A better mechanical interlocking between UHMWPE and CNF at high temperature mixing with kneading was evident through FE-SEM observation, explains the higher mechanical properties of MB-UHMWPE/0.5 as compared to EM-UHMWPE/0.5.

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Biomedical applications of polyethylene

Cited by 138 publications

References 144 publications

Thermal and mechanical properties of UHMWPE/HDPE/PCL and bioglass filler: Effect of polycaprolactone

Thermal and mechanical properties of UHMWPE/HDPE/PCL and bioglass filler: Effect of polycaprolactone

Recycled Plastics and Nanoparticles for Green Production of Nano Structural Materials

Melt- vs. Non-Melt Blending of Complexly Processable Ultra-High Molecular Weight Polyethylene/Cellulose Nanofiber Bionanocomposite

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