Fam H, Kontopoulou M, Bryant J T
Human Mobility Research Centre, Queen's University, Kingston General Hospital, Queen's University, Kingston, ON, Canada.
Biorheology. 2005;42(4):295-306.
The purpose of this work is to design a rheological analogue to periprosthetic fluid, for potential use in wear testing of orthopaedic implants. Polymer solutions of sodium carboxymethyl cellulose (CMC), xanthan and mixtures thereof were prepared, and the experimentally determined viscosity-shear rate dependence was analyzed using the three-parameter modified Cross model. A mixture containing 0.185 wt% CMC and 0.075 wt% xanthan was identified as being the closest rheological match for periprosthetic fluid in both steady shear and oscillatory modes of deformation.
这项工作的目的是设计一种用于假体周围液体的流变学模拟物，以潜在地用于骨科植入物的磨损测试。制备了羧甲基纤维素钠（CMC）、黄原胶及其混合物的聚合物溶液，并使用三参数修正Cross模型分析了实验测定的粘度-剪切速率依赖性。一种含有0.185 wt% CMC和0.075 wt%黄原胶的混合物被确定为在稳态剪切和振荡变形模式下与假体周围液体最接近的流变学匹配物。
