新型钙镁磷酸复合材料理化机械性能的初步评价

›› 2016, Vol. 36 ›› Issue (10): 865-869.

• 基础研究 • 下一篇

新型钙镁磷酸复合材料理化机械性能的初步评价

沈晴昳¹,李恺²,李国强¹

1. 上海市口腔病防治院
2. 中国科学院上海硅酸盐研究所

收稿日期:2016-05-10 修回日期:2016-06-11 出版日期:2016-10-28 发布日期:2016-10-25
通讯作者: 沈晴昳 E-mail:est_s@sina.com
基金资助:
无机复合材料修复髓室底穿孔的应用基础研究;纳米纤维纳米颗粒增韧复相牙科陶瓷的基础研究

Mechanical and chemical properties of novel calcium-magnesium phosphate cements

Received:2016-05-10 Revised:2016-06-11 Online:2016-10-28 Published:2016-10-25
Contact: Qing-Yi SHEN E-mail:est_s@sina.com

摘要/Abstract

摘要： 目的研究新型磷酸钙-磷酸镁水门汀（CMPCs）的理化机械性能。方法采用X射线衍射（XRD）、扫描电镜（SEM）分析主要物相组成，研究比较材料不同组成对固化时间、抗压强度、降解率的影响。结果 XRD、SEM分析显示，CMPCs主要包含Ca3(PO4)2、 Mg3(PO4)2、HA以及少量MgO。随着磷酸镁水门汀含量的增加，CMPCs的固化时间缩短，抗压强度提高，降解率升高。结论 CMPCs理化机械性能优良，作为齿科修复材料具有深入研究的价值。

关键词: 磷酸钙水门汀, 磷酸镁水门汀, 固化时间, 压缩强度, 降解

Abstract: Objective To study the mechanical and chemical properties of novel calcium-magnesium phosphate cements(CMPCs). Methods Components of the CMPCs were analyzed by XRD and SEM. The physicochemical properties of the CMPCs were investigated, and the effects of different components on setting time, compressive strength, rate of degradation were studied. Results According to the analysis of XRD and SEM, CMPCs were composed of Ca3(PO4)2, Mg3(PO4)2 and HA, and a small amount of unreacted MgO was also observed. It showed that with the increasing amount the CMPCs exhibited shorter setting time and higher compressive strength than the CPC. In addition, CMPCs showed significantly improved degradability compared with the CPC in SBF. Conclusion CMPCs possess a significant clinical advantage over CPC, and it might have the value of in-depth study as dental restorative material.

Key words: calcium phosphate cement, magnesium phosphate cement, setting time, Compressive strength, Degradation

中图分类号:

R783.1

沈晴昳李恺李国强. 新型钙镁磷酸复合材料理化机械性能的初步评价[J]. , 2016, 36(10): 865-869.

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新型钙镁磷酸复合材料理化机械性能的初步评价

Mechanical and chemical properties of novel calcium-magnesium phosphate cements

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