碳纤维增强α-TCP/TTCP骨水泥的研究  

Carbon Fiber Reinforced a-TCP/TTCP Bone Cement

作　　者：戴红莲[1] 李世普[1] 贺建华[1] 闫玉华[1] 

机构地区：[1]武汉理工大学生物材料与工程研究中心,武汉430070

出　　处：《无机材料学报》2004年第5期1025-1030,共6页Journal of Inorganic Materials

基　　金："973"国家重点基础研究发展规划(G1999064701)

摘　　要：制备了经过氧化处理的碳纤维增强磷酸钙骨水泥(α-tricalcium phosphate ce-ment/tetracalcium phosphate,α-TCP/TTCP),初步探讨了碳纤维长径比、含量对硬化体抗压、抗折强度的影响.实验结果表明长径比为375,添加量为0.3wt％时,增强效果最为理想,抗压强度提高了55％(最大为63.46MPa),抗折强度提高近100％(最大为11.95MPa),而掺入量太大及长径比太高,碳纤维因不能均匀分散将限制其性能的发挥.生物学评价实验结果表明碳纤维增强的骨水泥具有良好的生物相容性.Oxidation-treated carbon fiber was used to reinforce calcium phosphate bone cement (a-TCP/TTCP). The effect of length-diameter ratio and content of carbon fiber on the compression strength and bending strength of the hardened body was preliminarily discussed. The results show that the reinforcing effect is optimal when the length-diameter ratio of carbon fiber is 375 and the addition quantity is 0.3wt%. The compression strength increases to 155% (maximum: 63.46MPa), bending strength increases to 200% (maximum: 11.95MPa), respectively. However, if the addition quantity is too large or the length-diameter ratio is too high, carbon fiber can not give play to its function fully, because it can not be dispersed uniformly in the hardened body. The biological evaluation indicates that the carbon fiber reinforced α-TCP/TTCP has good biocompatibility.

关 键 词：磷酸钙骨水泥 碳纤维 增强 生物相容性 

分 类 号：R318[医药卫生—生物医学工程]