Liquid monomer-powder particle interaction in acrylic bone cement

被引：0
|
作者：
Walker, G.M. [1 ,2 ]
Daly, C. [2 ,3 ]
Dunne, N.J. [2 ,3 ]
Orr, J.F. [2 ,3 ]
机构：
[1] School of Chemistry and Chemical Engineering, Queen's University Belfast, United Kingdom
[2] Medical Polymers Research Institute, Queen's University Belfast, United Kingdom
[3] School of Mechanical and Aerospace Engineering, Queen's University Belfast, Belfast, BT9 5AG Northern Ireland, United Kingdom
来源：
Chemical Engineering Journal | 2008年 / 139卷 / 03期
关键词：
It is known that the method used to mix the liquid monomer and powder of PMMA bone cement influences the quality of the cement that is used in total joint replacements. Mixing theory indicates that the interaction between the liquid monomer and the powder is affected by a number of parameters; such as cement viscosity and degree of agitation; with this knowledge utilized in the design of cement mixing devices. Therefore; the objectives of this study were to: (i) obtain information on the interaction of the liquid monomer and the powder in the case of an PMMA bone cement; (ii) show how this knowledge can be applied to the design of an automated cement mixing device; and (iii) compare the porosity; bending modulus; and bending strength of one commercially-available cement prepared using the automated mixer and prepared using a conventional mixer that is in current clinical use. Experimental data indicated that increasing the velocity and decreasing the viscosity of the systems produced cement that improved mechanical properties; which may contribute to better mechanical integrity and; hence; reduced tendency for aseptic loosening; of cemented hip implants. © 2007;
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页码：489 / 494
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