Incorporation of multiwalled carbon nanotubes to acrylic based bone cements: effects on mechanical and thermal properties

Journal of the Mechanical Behavior of Biomedical Materials
Ross OrmsbyNicholas Dunne

Abstract

Polymethyl methacrylate (PMMA) bone cement-multiwalled carbon nanotube (MWCNT) nanocomposites with a weight loading of 0.1% were prepared using 3 different methods of MWCNT incorporation. The mechanical and thermal properties of the resultant nanocomposite cements were characterised in accordance with the international standard for acrylic resin cements. The mechanical properties of the resultant nanocomposite cements were influenced by the type of MWCNT and method of incorporation used. The exothermic polymerisation reaction for the PMMA bone cement was significantly reduced when thermally conductive functionalised MWCNTs were added. This reduction in exotherm translated in a decrease in thermal necrosis index value of the respective nanocomposite cements, which potentially could reduce the hyperthermia experienced in vivo. The morphology and degree of dispersion of the MWCNTs in the PMMA matrix at different scales were analysed using scanning electron microscopy. Improvements in mechanical properties were attributed to the MWCNTs arresting/retarding crack propagation through the cement by providing a bridging effect into the wake of the crack, normal to the direction of crack growth. MWCNT agglomerations were evident within t...Continue Reading

Citations

Jan 22, 2010·Journal of Materials Science. Materials in Medicine·Ross OrmsbyNicholas Dunne
Nov 16, 2013·Acta Biomaterialia·Jingtao ZhangJean-Michel Bouler
Jun 10, 2014·Journal of the Mechanical Behavior of Biomedical Materials·Josh SlaneHeidi-Lynn Ploeg
Feb 18, 2016·Journal of Materials Science. Materials in Medicine·E PazJ C Del Real
Jul 26, 2011·Journal of the Mechanical Behavior of Biomedical Materials·Dan-Jae LinJiin-Huey Chern Lin
Oct 20, 2015·Materials Science & Engineering. C, Materials for Biological Applications·Shou-Cang ShenReginald Beng Hee Tan
Nov 12, 2013·Journal of the Mechanical Behavior of Biomedical Materials·Josh SlaneMatthew Squire
Mar 13, 2016·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Gladius Lewis
Feb 12, 2011·Experimental Psychology·Stephanie M MüllerAntonio Maldonado
Apr 20, 2011·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Gladius Lewis
Feb 4, 2014·Journal of Biomaterials Applications·Ross W OrmsbyNicholas J Dunne
Feb 6, 2020·International Journal of Biological Macromolecules·Mohamadreza TavakoliSaeed Karbasi
Feb 12, 2021·Journal of the Mechanical Behavior of Biomedical Materials·F PahlevanzadehF Berto
Apr 2, 2020·Materials Science & Engineering. C, Materials for Biological Applications·Abhijit H PhakatkarTolou Shokuhfar
Nov 26, 2013·Materials Science & Engineering. C, Materials for Biological Applications·D MataF J Oliveira
Jun 8, 2021·Journal of Biomaterials Science. Polymer Edition·Baptiste LevenezJosé M Cervantes-Uc

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