以等质量的磷酸氢钙(DCPA)和部分结晶磷酸钙(PCCP)组成的磷酸钙骨水泥粉体作为研究对象,采用单因素实验,研究了DCPA和PCCP粒度变化对骨水泥流变性和可注射性的影响.结果表明:随着DCPA粒径的减小,骨水泥浆体的粘度和屈服应力有所增大,但对可注射性影响较小.而PCCP的粒度变化对骨水泥的流变性能和可注射性影响较大.随着PCCP粒径的减小,骨水泥浆体的粘度和屈服应力明显提高,可注射性则明显降低.综合考虑骨水泥的可注射性、抗压强度和凝结时间的变化,在0.5的液固比下,当DCPA平均粒径为2μm左右和PCCP平均粒径为23μm左右时所配成的磷酸钙骨水泥的性能最好.
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