Calafiori A R, Di Marco G, Martino G, Marotta M
Department of Cell Biology, University of Calabria, P. Bucci 4c, Rende, CS 87030, Italy.
J Mater Sci Mater Med. 2007 Dec;18(12):2331-8. doi: 10.1007/s10856-007-3141-3. Epub 2007 Jun 14.
Calcium phosphate cement (CPC) samples have been prepared with a mixture of monocalciumphosphate monohydrate (MCPM) and calcium carbonate (CC) powders, in stechiometric moles ratio 1:2.5 to obtain a Ca/P ratio of about 1.67 typical of hydroxyapatite (HAp), with or without addition of HAp. All specimens are incubated at 30 degrees C in a steam saturated air environment for 3, 6 and 15 days respectively, afterwards dried and stored under nitrogen. The calcium phosphate samples have been characterized by X-ray diffraction (XRD), Vickers hardness test (HV), diametral compression (d.c.), strength compression, and porosity evaluation. MCPM/CC mixture has a 30% HAp final concentration and is characterized by higher porosity (amount 78%) and mechanical properties useful as filler in bone segments without high mechanical stress.
磷酸钙骨水泥（CPC）样品是由一水磷酸二氢钙（MCPM）和碳酸钙（CC）粉末按化学计量摩尔比1:2.5混合制备而成，以获得羟基磷灰石（HAp）典型的约1.67的钙磷比，添加或不添加HAp。所有样品分别在30℃的蒸汽饱和空气环境中孵育3天、6天和15天，之后干燥并在氮气下储存。通过X射线衍射（XRD）、维氏硬度测试（HV）、径向压缩（d.c.）、抗压强度和孔隙率评估对磷酸钙样品进行了表征。MCPM/CC混合物的最终HAp浓度为30%，其特点是孔隙率较高（达78%），且具有适用于无高机械应力骨段填充的机械性能。
