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Polyethylene-hydroxyapatite composites

Wang, M., Joseph, R., and Bonfield, W., Hydroxyapatite-polyethylene composites for bone substitution effects of ceramic particle size and morphology. Biomaterials, 19, 2357, 1998. [Pg.443]

In order to obtain a bioactive material with a lower elastic modulus and ductility, Bonfield prepared a hydroxyapatite-polyethylene composite [50]. Hydroxyapatite powders can be dispersed in a polyethylene matrix up to 45 vol% without losing any ductility of the polymer. The resultant composite shows a Young s modulus value of about 3 GPa, an ultimate tensile strength of 22-26 MPa, and a fracture toughness, Kjc, of 2.9 MPa m [51]. This composite is already used clinically as an artificial middle ear bone, etc. [Pg.403]

Wang M, Bonfield W (2001) Chemically coupled hydroxyapatite-polyethylene composites structure and properties. Biomaterials 22 1311-1320... [Pg.196]

Smolko E, Romero G (2007) Studies on crossUnked hydroxyapatite-polyethylene composite as a bone-analogue material. Rad Phys Chem 76 1414-1418... [Pg.196]

Deb, S., Wang, M., Tanner, K.E., Bonfield, W, 1996. Hydroxyapatite polyethylene composites effect of grafting and surface treatment of hydroxyapatite. Journal of Materials Science-Materials in Medicine 7, 191-193. [Pg.89]

H. Liang, M.M. Savalani, Y. Zhang, K.E. Tanner, R.A. Harris, Selective laser sintering of hydroxyapatite reinforced polyethylene composites for bioactive implants and tissue scaffold development. Proc. Inst. Mech. Eng. [H] 220, 521-531 (2006)... [Pg.264]

Wang M, Porter D, Bonfield W (1994) Processing, characterisation, and evaluation of hydroxyapatite reinforced polyethylene composites. Br Ceram Trans 93 91-95... [Pg.196]

Joseph R, McGregor WJ, Martyn MT et al (2002) Effect of hydroxyapatite morphol-ogy/surface area on the rheology and processability of hydroxyapatite filled polyethylene composites. Biomaterials 23 4295 302... [Pg.196]

Fang L, Gao P, Leng Y (2007) High strength and bioactive hydroxyapatite nano-particles reinforced ultrahigh molecular weight polyethylene. Composites Part B 38 345-351... [Pg.196]

Di Silvio L, Dalby M, Bonfield W. In vitro response of osteoblasts to hydroxyapatite-reinforced polyethylene composites. J Mater Sci 1998 December 9(12) 845-8. [Pg.258]

Huang J, Di Silvio L, Wang M, Tanner KE, Bonfield W. In vitro mechanical and biological assessment of hydroxyapatite-reinforced polyethylene composite. J Mater Sci 1997 December 8(12) 775-9. [Pg.258]

H. Fouad, R. Elleithy, Othman and Y. Alothman. Thermo-mechanical, Wear and Fracture Behavior of High-density Polyethylene/Hydroxyapatite Nano Composite for Biomedical Apphcations Effect of Accelerated Ageing. /. Mater. Sci. Technol. 29 (6), 573-581 (2013). [Pg.296]

Fig. 11.2 Structural model of the composite of hydroxyapatite particles and high density polyethylene. Fig. 11.2 Structural model of the composite of hydroxyapatite particles and high density polyethylene.
Figure 2.31 A WAXD pattern of a composite sample containing ultra-high molecular weight polyethylene (PE) fibrils and nanoparticles of hydroxyapatite (HA). The arrow indicates the drawing direction in the composite sample. Figure 2.31 A WAXD pattern of a composite sample containing ultra-high molecular weight polyethylene (PE) fibrils and nanoparticles of hydroxyapatite (HA). The arrow indicates the drawing direction in the composite sample.
Figure 10.32 TG curves of hydroxyapatite (HA)-ultra-high molecular weight polyethylene (UHMWPE) composites with different content HA particles. The legends indicate the nominal volume fraction of HA in the UHMWPE matrix. Figure 10.32 TG curves of hydroxyapatite (HA)-ultra-high molecular weight polyethylene (UHMWPE) composites with different content HA particles. The legends indicate the nominal volume fraction of HA in the UHMWPE matrix.
An important development of orthopaedic implants has been the development of artificial composites, which when combined with biomolecules will induce osteogenesis. The properties of hydroxyapatite (HA) materials have been studied over the years with a view to increasing elasticity. Because biocompatibility has been a problem when HA has been combined with various polyethylenes and polysulphones, polyhydroxyalkanoates (PHAs) and its chemical composites, a polymer of hydroxybutyric acid (PHB), copolymers of hydroxybutyric acid and... [Pg.683]

M. Ahmad, M.U. Wahit, M.R.A. Kadir, K.Z.M. Dahlan, Mechanical, iheological, and bioactivity properties of ultra high-molecular-weight polyethylene bioactive composites containing polyethylene glycol and hydroxyapatite. Sci. World J. 13, 474851 (2012)... [Pg.177]

H. Balakrishnan, M.R. Husin, M.U. Wahit, M.R. Abdul, Kadir. Maleated high density polyethylene compatibilized high density polyethylene/hydroxyapatite composites for biomedical applications properties and characterization. Polym.-Plast. Technol. Eng. 52, 774-782 (2013)... [Pg.264]

Another application of dental composites is orthodontic archwires. One example is a unidirectional pultruded S2-glass-reinforced dimethacrylate thermoset resin. Depending on the yam of glass fiber used, the fiber volume fraction varied from 32 to 74 percent The strength and modulus were comparable with those of titanium wires. Orthodontic brackets were also made from composites with a polyethylene matrix reinforced with ceramic hydroxyapatite particles, resulting in isotropic properties and good adhesion to enamel. [Pg.301]

See other pages where Polyethylene-hydroxyapatite composites is mentioned: [Pg.341]    [Pg.518]    [Pg.341]    [Pg.518]    [Pg.302]    [Pg.318]    [Pg.635]    [Pg.166]    [Pg.635]    [Pg.255]    [Pg.232]    [Pg.285]    [Pg.227]    [Pg.340]    [Pg.356]    [Pg.717]    [Pg.530]    [Pg.227]    [Pg.743]    [Pg.167]    [Pg.116]    [Pg.1137]    [Pg.445]    [Pg.60]    [Pg.134]   
See also in sourсe #XX -- [ Pg.403 ]



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