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http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1493| Preparation and characterization of poly(methyl methacrylate)- chitosan/hydroxyapatite composite coating on ultra high molecular weight polyethylene substrate | |
| ANA MARIA ARIZMENDI MORQUECHO JOSE FRANCISCO LOUVIER HERNANDEZ | |
| Acceso Abierto | |
| Sin Derechos Reservados | |
| Mthyl methacrylate | |
| In this work we prepared a poly(methyl methacrylate)-chitosan/hydroxyapatite (PMMACTS/ HA) composite coating. PMMA-CTS/HA composite was prepared by a solution of chitosan-hydroxyapatite (CTS-HA) and the in situ polymerization of PMMA obtained from its monomer methyl methacrylate (MMA) using benzoyl peroxide (PBO) as the initiator. FTIR technique was used to study the hybrid composite coating. The coating morphology was characterized by SEM finding out a well-connected porous surface structure provided by the incorporation of HA and CTS. A pin-on-disk test was executed with a 6 mm diameter WC ball in dry condition applying 2, 4, 6, 8 and 10 N loads. The lowest mean kinetic friction coefficient (μk) was 0.04 at 10 N, whereas the lowest wear rate (k) was 5.1 x10-5 mm3/(Nm) at 4 N. The coating hardness was evaluated with a Vickers hardness test using a load of 50 mN obtaining a mean value of 0.21 GPa. Experimental results opened the possibility of using PMMA-CTS/HA coating on ultrahigh molecular weight polyethylene (UHMWPE) as bearing material in biomedical applications taking into account the potential properties of these systems with human tissue. | |
| 2012 | |
| Memoria de congreso | |
| Inglés | |
| OTRAS | |
| Versión revisada | |
| submittedVersion - Versión revisada | |
| Aparece en las colecciones: | Artículos de Congresos |
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| 2012 MRS Boston Extenso.pdf | 578.92 kB | Adobe PDF | Visualizar/Abrir |