碳纤维增强聚乳酸复合材料体外降解特性  

IN VITRO DEGRADATION CHARACTERISTIC OF CARBON FIBER- REINFORCED POLYLACTIDE (C/PLA) COMPOSITE

作　　者：齐锦刚[1] 曹丽云[1] 王建中[1] 苍大强[2] 

机构地区：[1]辽宁工学院材料系,锦州121001 [2]北京科技大学冶金与生态工程学院,北京100083

出　　处：《复合材料学报》2005年第2期34-37,共4页Acta Materiae Compositae Sinica

基　　金：辽宁省教育厅基金(20032080);辽宁工学院青年教师基金

摘　　要：制备了碳纤维增强聚乳酸(C/PLA)骨折内固定复合材料, 研究了体外降解过程中其力学性能的变化。结果表明: 在体外降解过程中, C/PLA复合材料的各项力学性能均有不同程度的下降, 但经过硝酸处理后的C/PLA复合材料降解速度缓慢, 表明界面结合强度的提高对降解过程起抑制作用。Carbon fiber-reinforced polylactide (C/PLA) composite used for bone fracture fixation was prepared, and the change of mechanical performance was investigated during in vitro degradation. The result indicates that the mechanical performance of C/PLA composite descends to some extent, however, the C/PLA composite whose carbon fiber was treated by the surface soakage with thick nitric acid attains a slow degradation rate, which denotes that the stronger interfacial bonding strength can restrain in vitro degradation of C/PLA composite.

关 键 词：碳纤维 C/PLA复合材料 体外降解 力学性能 

分 类 号：TB34[一般工业技术—材料科学与工程] TB332