Study on the mechanical and biological property of PMMA bone cement modified with ultra fine glass f

• 作 者: WU Qisheng CHENG Futao WEI Wuji
• 机 构: Department of Materials Engineering,Yancheng Institute of Technology,Yancheng 224003,China;College o
• 出 处: 中国高等学校学术文摘·材料科学
• 发表日期: 2007年3期
• 关键词: bone cement (BC) ultra-fine glass fibers(UFGF) nano-hydroxapatite(nano-HAP) pre-

In this study,polymethylmethacrylate(PMMA)bone cement (BC) was modified with ultra-fine glass fibers (UFGF)and nano-hydroxapatite(nano-HAP) synthesized by hydrothermal method.The results show that when the contents of both UFGF and nano-HAP powders are about 5%,the ultimate tensile strength(UTS),ultimate impact toughness (UIT),tensile strain(TS),and elastic modulus(EM)have been promoted a lot.The interface bond was improved by silicane treatment.Pre-grinding mixture of PMMA,UFGF,and nano-HAP can largely improve the mechanical property of PMMA.The PMMA modified with UFGF and HAP has better bioactivity than that modified with pure UFGF when they share the same content.Nano-HAP powder and modified PMMA were characterized by X-ray diffractometry (XRD),scanning electron microscopy(SEM)and Fourier transform infrared spectroscopy(FTIR).