摘要
采用不同形貌的羟基磷灰石纳米粒子与聚酸酐材料复合,研究了羟基磷灰石形貌对复合材料力学强度的影响,并用扫描电子显微镜观察了复合材料的断面形态。结果发现羟基磷灰石的形貌对材料的压缩强度和压缩弹性模量影响较大:长针状羟基磷灰石增强效果较好,所得复合材料的压缩强度可达256MPa,压缩弹性模量可达9.8GPa;片状羟基磷灰石的复合材料力学强度较差,压缩强度最高只有160Mpa,压缩弹性模量最高只有7.9GPa。
Hydroxyapatite nanoparticles with different morphology were introduced into the polyanhydride matrix. Effects of hydroxyapatite morphology on the mechanical strength of the resulted composites were evaluated and the fractured surface morphology was characterized by SEM. The results show that hydroxyapatite morphology has a great effect on the compressive strength and compressive elastic modulus of hydroxyapatite-polyanhydfide composites. The composite with long needle-like hydroxyapatite addition exhibits the best mechanical strength with compressive strength 256MPa and compressive elastic modulus 9.8GPa, while the composite involving plate-like hydroxyapatite presents the worst mechanical strength with compressive strength 160MPa and compressive elastic modulus 7.9GPa.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2006年第5期646-648,682,共4页
Journal of Materials Science and Engineering
基金
国家自然科学基金资助项目(20221603)
中国科学院海外团队资助项目
作者简介
高卫民（1972-），男，博士,主要从事生物复合材料的研究。E-mail：wmgao@sohu.com．
