【摘要】 制备了碳纤维增强聚乳酸 (C/PLA)骨折内固定材料 ,对碳纤维进行了浓硝酸表面处理。测量了C/PLA复合材料的力学性能 ,并通过XPS分析了表面处理前后碳纤维表面官能团的变化。结果表明 ,在复合材料界面区发生了某种酯化反应 ,这是其界面粘结性能得到改善的根本原因更多还原

【Abstract】 The carbon fiber-reinforced Polylactide (C/PLA) was prepared for bone fracture fixation, and the carbon fiber was treated by surface soakage with concentrated nitric acid. The mechanical performances of C/PLA composite were measured and the changes of functional groups were analyzed by XPS. The results indicated that a certain esterification occurred on the interface between carbon fiber and PLA matrix, which was the essential reason of the improvement of interfacial bonding strength.更多还原