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以壳聚糖-羟基磷灰石(CS-HA)为基体,碳纤维(C(f))为增强相,采用原位杂化、共混的方法,制备了短碳纤维增强CS-HA生物复合材料。研究了制备方法、单体配比、碳纤维含量对复合材料性能的影响。采用红外吸收光谱、扫描电子显微镜、X-射线衍射和万能材料试验机对材料的结构和性能进行了表征。结果表明:原位杂化法较共混法制备的复合材料力学性能好;当w(CS)/w(HA)=10/1时,复合材料抗折强度达到极大值;随着碳纤维含量增加,复合材料的断裂面由平整向多层断裂变化,材料的韧性有所提高。
The short carbon fiber reinforced CS-HA composite was prepared by in situ hybridization and blending with chitosan-hydroxyapatite (CS-HA) as matrix and carbon fiber (C (f) . The effects of preparation method, monomer ratio and carbon fiber content on the properties of the composites were studied. The structure and properties of the materials were characterized by infrared absorption spectroscopy, scanning electron microscopy, X-ray diffraction and universal material testing machine. The results show that the mechanical properties of the composites prepared by in-situ hybridization are better than that of the hybrid method. The flexural strength reaches the maximum at w (CS) / w (HA) = 10/1. With the increase of carbon fiber content Increase, the fracture surface of the composite material changes from flat to multi-layer fracture, the toughness of the material is improved.