[1]陈芳萍,刘昌胜.可注射磷酸钙骨水泥的流变性能研究[J].中国材料进展,2012,(9):001-5.[doi:10.7502/j.issn.1674-3962.2012.09.01]
　CHEN Fangping,LIU Changsheng.Study on the Rheological Properties of Injectable Calcium Phosphate Cement[J].MATERIALS CHINA,2012,(9):001-5.[doi:10.7502/j.issn.1674-3962.2012.09.01]
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可注射磷酸钙骨水泥的流变性能研究()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2012年第9期
页码:
001-5
栏目:
出版日期:
2012-09-30

文章信息/Info

Title:
Study on the Rheological Properties of Injectable Calcium Phosphate Cement
作者:
陈芳萍; 刘昌胜
（华东理工大学 超细材料制备与应用教育部重点实验室，上海 200237）
Author(s):
CHEN Fangping; LIU Changsheng
（Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China）
关键词:
可注射; 磷酸钙骨水泥; 流变性能; 动态频率扫描; 动态时间扫描
DOI:
10.7502/j.issn.1674-3962.2012.09.01
文献标志码:
A
摘要:
采用高级流变扩展系统研究了添加剂种类及其含量对可注射磷酸钙骨水泥(ICPC)流变特性的影响。采用稳态流动实验表征浆体的静态粘度，用触变环面积、应力降低率和屈服应力表征ICPC浆体的触变性，并进行动态频率扫描和动态时间扫描实验动态监测ICPC的粘、弹、塑性变化规律以及水化反应过程流变参数的依时性。结果表明：添加剂并不改变ICPC的〖JP〗粘弹性。水溶性高分子化合物的加入提高了ICPC的粘度和触变性，利于整个体系的稳定；添加剂不同程度上提高了ICPC剪切后的网络结构恢复能力和稳定性，尤其以黄原胶和几丁糖最为明显。在此基础上，评估了加入黄原胶后ICPC形成凝胶的时间，约为2 563~2 600 s。此外，随着黄原胶含量的增加，ICPC触变环面积增加，但形成的网络结构在高剪切状态下并不稳定。
Abstract:
The influence of additives on the rheological properties of injectable calcium phosphate cement (ICPC) was investigated with an advanced expansion system rheometer. During the measurement of steady rheological properties, the viscosity, shear stress, and thixotropy were detected. During dynamic oscillation testing, the viscoelastic response of the ICPC under forced oscillation and the internal structure were unvailled. The results indicated that the ICPC showed both plastic and thixotropic behavior with little effect by additives. The introduction of these water soluble polymers improved the viscosity and thixotropy of the ICPC, which are conducive to the stability of the whole system. These additives improve the recoverability and stability of the ICPC network after being sheared, in which xanthan gum and chitosan were the most obvious. On this basis, the time to form a gel was assessed to be in the range of 2 563~2 600 s for xanthan gumICPC system. In addition, with the increasing of xanthan gum contents, the thixotropic loop area of ICPC enlarged, but the formation of network structure was not stable under high shear condition.
更新日期/Last Update: 2012-09-21