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Mechanical and thermal behaviour of an acrylic bone cement modified with a triblock copolymer

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IIT-16-021A.pdf (864.0Kb)
Fecha
2016-04-01
Autor
Paz Jiménez, Eva
Abenojar Buendía, Juana
Ballesteros Iglesias, María Yolanda
Forriol Campos, Francisco Luis
Dunne, Nicholas
del Real Romero, Juan Carlos
Estado
info:eu-repo/semantics/publishedVersion
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The basic formulation of an acrylic bone cement has been modified by the addition of a block copolymer, Nanostrength® (NS), in order to augment the mechanical properties and particularly the fracture toughness of the bone cement. Two grades of NS at different levels of loading, between 1 and 10 wt., have been used. Mechanical tests were conducted to study the behaviour of the modified cements; specific tests measured the bend, compression and fracture toughness properties. The failure mode of the fracture test specimens was analysed using scanning electron microscopy (SEM). The effect of NS addition on the thermal properties was also determined, and the polymerisation reaction using differential scanning calorimetry. It was observed that the addition of NS produced an improvement in the fracture toughness and ductility of the cement, which could have a positive contribution by reducing the premature fracture of the cement mantle. The residual monomer content was reduced when the NS was added. However this also produced an increase in the maximum temperature and the heat delivered during the polymerisation of the cement.
 
URI
https:doi.org10.1007s10856-016-5679-4
Mechanical and thermal behaviour of an acrylic bone cement modified with a triblock copolymer
Tipo de Actividad
Artículos en revistas
ISSN
0957-4530
Materias/ categorías / ODS
Instituto de Investigación Tecnológica (IIT)
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