医用连续碳纤维增强聚烯烃复合材料的生物力学特性测试  

Biomechanical Properties of Continuous Carbon-fiber Reinforced Polyolefin Composites for Implantation

作　　者：薛锋[1] 侯春林[2] 王以进[3] 杨桂生[4] 陈庆泉[2] 张伟[2] 

机构地区：[1]上海建工医院骨科,上海200083 [2]第二军医大学附属长征医院骨科,上海200003 [3]上海大学生物力学研究所,上海201800 [4]中国科学院化学研究所,上海201109

出　　处：《医用生物力学》2005年第1期11-13,共3页Journal of Medical Biomechanics

基　　金：中国博士后科学基金资助项目(基金编号:2003033341)

摘　　要：目的通过对医用连续碳纤维增强聚烯烃复合材料的生物力学测试,了解其作为硬组织修复材料的力学性能。方法对25根连续碳纤维增强聚烯烃复合材料棒进行拉伸、压缩、弯曲及剪切性能测试,得出该材料的最大载荷、极限强度、弹性模量、泊松比及延伸率。结果极限强度中,拉伸强度(561.11±14.24)MPa,压缩强度(341.91±1.71)MPa,弯曲强度(715.86±19.26)MPa,剪切强度(58.20±15.28)MPa。弹性模量(弯曲)(43.33±1.17)GPa;泊松比0.314±0.005;延伸率(18.20±0.55)%。结论医用连续碳纤维增强聚烯烃复合材料具有良好的生物力学特性,能满足硬组织修复的生物力学要求。Objective The purpose of this study is to evaluate biomechanical character of continuous carbon-fiber reinforced polyolefin composites as hard tissue repair material. Methods Twenty-five rods of continuous carbon-fiber reinforced polyolefin were subjected to the tests of anti-bending, compressive strength, shear strength and flexural strength. The result included elastic modulus, tensile strength, Compressive strength, anti-bending strength, shear strength and poisson' s ratio. Results Elastic modulus: (43.33±1.17) GPa,tensile strength: (561.11±14.24) MPa,shear strength: (58.20±15.28) MPa,flexural strength: (715.86±19.26) MPa,Poisson' s ratio: 314±0.005, Elongation: (18.20±0.55) %, Compressive strength: (0.341.91±1.71) MPa. Conclusion This work revealed that the continuous carbon-fiber reinforced polyolefin composites have more ideal biomechanical Properties. It meet the biomechanical demends of hard tissue repair.

关 键 词：复合材料 碳纤维 生物力学 

分 类 号：R318.08[医药卫生—生物医学工程]