用改进中和法新工艺成功制备出含CO32-的β-TCP/HA双相生物活性陶瓷粉体和引入不同常规的微波烧结新方法制备含CO32-的多孔双相磷酸钙陶瓷来提高生物活性.主要研究了含CO32-和不含CO32-的及常规烧结和微波烧结所制β-TCP/HA双相陶瓷在生理盐水中的溶解性能,实验结果表明,含CO32-的双相陶瓷比未含CO32-双相陶瓷溶解性高,微波烧结的双向陶瓷比马弗炉烧结的溶解性好.通过对实验数据进行模拟,含CO32-的多孔β-TCP/HA双相陶瓷的溶解符合Avrami型动力学方程,求出了2种烧结方法相对应的动力学方程式:常规烧结:-1n(1-x)=0.38t0.89,微波烧结:-1n(1-x)=0.80t0.67.
参考文献
| [1] | Germine M;Parson J R .[J].Journal of Biomedical Materials Research,1988,22:257. |
| [2] | De Bruijn JD;Yuan HP;De Groot K.Osteoinducive Biomimetic Calcium Phosphate Coatings and Their Potential Useas tissue Engineering Scaffolds,in Bone Engineering,Ed[M].Canada:Em Squared Incorporated,2000:421. |
| [3] | Grimm B;Miles A W;Turner I G .[J].Journal of Materials Science:Materials in Medicine,2001,12:929. |
| [4] | Legeros R Z;Lin S;Rohanizadeh R .[J].Journal of Materials Science:Materials in Medicine,2003,14:201. |
| [5] | Daculsi G .Biphasic calcium phosphate concept applied to artificial bone, implant coating and injectable bone substitute.[J].Biomaterials,1998(16):1473-1478. |
| [6] | Magan A;Ripamonti U .[J].Journal of Cranio-Maxillofacial Surgery,1996,7(01):71. |
| [7] | Yamasaki H;Sakai H .[J].Biomaterials,1992,13:308. |
| [8] | Posner A S .[J].Clinical Orthopaedics & Related Research,1985,200:87. |
| [9] | 孙璐薇,冉均国,季金苟,苟立,王方瑚.含CO2-3的β-TCP/HA双相生物陶瓷粉末制备新工艺[J].化工进展,2004(06):657-660. |
| [10] | Avrami M .[J].Journal of Chemical Physics,1939,7:1103. |
| [11] | Kabai J .[J].Acta Chimica Academiae Scientiarum Hungaricae,1973,76:57. |
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