短碳纤维增强型聚醚醚酮复合体的力学性能研究
发布时间：2019-06-13 19:50
【摘要】：目的:聚醚醚酮高分子材料(polyetheretherkrtone;PEEK)具有良好的理化性能、生物相容性、力学性能并且与人骨松质弹性模量相接近,临床应用前景广泛。本文旨在研究不同质量百分比的短碳纤维(Carbon Fiber;CF)作为增强相的PEEK复合体材料的力学性能,明确CF-PEEK复合体在弯曲性能、拉伸性能、压缩性能、抗冲击性能以及硬度方面的参数,为其在口腔医学领域中的应用提供基础。方法:制备挤压注塑成型的不同质量百分比的短碳纤维增强型CF-PEEK复合材料样品(0、25%、40%),进行机加工制备标准样条,并进行弯曲性能检测(GB/T9341)、拉伸性能检测(GB/T1040)、压缩性能检测(GB/T1041)、抗冲击性能检测(GB/Tl043)、维氏硬度检测GB/T4340,获取相应的参数。结果:实验测试PEEK其抗弯曲强度:142.7MPa,弯曲模量:3067.8MPa,拉伸强度:64.7MPa,拉伸模量(杨氏模量):3424.7MPa,抗压缩强度:185MPa,抗冲击强度:102.69KJ*m2,维氏硬度:23.68。25%CF-PEEK弯曲强度:242.8MPa,弯曲模量:8102.7MPa,拉伸强度:138.0MPa,拉伸模量(杨氏模量):10714.9MPa,抗压缩强度:643.4MPa,抗冲击强度:73.35KJ*m2,维氏硬度:28.62。40%CF-PEEK弯曲强度:262.68MPa,弯曲模量:10838.8MPa,拉伸强度:168.3MPa,拉伸模量(杨氏模量):14272.6MPa,抗压缩强度:815.7MPa抗冲击强度:54.24 KJ*m2,维氏硬度:42.32。结论:短碳纤维可以显著改变PEEK的弯曲性能、拉伸性能、压缩性能、抗冲击性能和硬度。40%CF-PEEK弯曲模量:10838.8MPa,拉伸模量(杨氏模量):14272.6MPa,高于PEEK和20%CF-PEEK组,与人颌骨弹性模量相接近(杨氏模量)。
[Abstract]:Objective: Polyetheretherketone (PEEK) has good physical and chemical properties, biocompatibility, mechanical properties and close to the elastic modulus of human bone. The purpose of this paper is to study the mechanical properties of carbon fiber (CF) as a reinforcing phase of PEEK composite, and to determine the parameters of CF-PEEK composite in bending performance, tensile property, compression property, impact resistance and hardness. And provides the basis for the application in the field of oral medicine. The method comprises the following steps of: preparing a short carbon fiber reinforced CF-PEEK composite material sample (0,25%,40%) by extrusion and injection molding, performing machining to prepare a standard spline, and performing bending performance detection (GB/ T9341), tensile property detection (GB/ T1040) and compression performance detection (GB/ T1041), Impact resistance test (GB/ Tl043), Vickers hardness test GB/ T4340, and obtain corresponding parameters. Results: The anti-bending strength of PEEK is 142.7MPa, flexural modulus: 3067.8 MPa, tensile strength: 64.7 MPa, tensile modulus (Young's modulus): 3424.7 MPa, anti-compression strength: 185MPa, impact strength: 102.69 KJ * m2, Vickers hardness: 23.68.25% CF-PEEK bending strength: 242.8 MPa, bending modulus: 8102.7 MPa, tensile strength: 138.0 MPa, Tensile modulus (Young's modulus): 10714.9MPa, anti-compression strength: 643.4MPa, impact strength: 73.35 KJ * m2, Vickers hardness: 28.62.40% CF-PEEK bending strength: 262.68 MPa, flexural modulus: 10838.8 MPa, tensile strength: 168.3 MPa, tensile modulus (Young's modulus): 14276MPa, anti-compression strength: 815.7 MPa impact strength: 54.24 KJ * m2, Vickers hardness: 42.32. Conclusion: Short carbon fiber can significantly change the bending properties, tensile properties, compression properties, impact resistance and hardness of PEEK. The flexural modulus of 40% CF-PEEK: 10838.8 MPa, the tensile modulus (Young's modulus): 14276MPa, higher than that of PEEK and 20% CF-PEEK, and is close to the modulus of elasticity of the human jaw (Young's modulus).
【学位授予单位】：山西医科大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：R318.01
本文编号：2498775
[Abstract]:Objective: Polyetheretherketone (PEEK) has good physical and chemical properties, biocompatibility, mechanical properties and close to the elastic modulus of human bone. The purpose of this paper is to study the mechanical properties of carbon fiber (CF) as a reinforcing phase of PEEK composite, and to determine the parameters of CF-PEEK composite in bending performance, tensile property, compression property, impact resistance and hardness. And provides the basis for the application in the field of oral medicine. The method comprises the following steps of: preparing a short carbon fiber reinforced CF-PEEK composite material sample (0,25%,40%) by extrusion and injection molding, performing machining to prepare a standard spline, and performing bending performance detection (GB/ T9341), tensile property detection (GB/ T1040) and compression performance detection (GB/ T1041), Impact resistance test (GB/ Tl043), Vickers hardness test GB/ T4340, and obtain corresponding parameters. Results: The anti-bending strength of PEEK is 142.7MPa, flexural modulus: 3067.8 MPa, tensile strength: 64.7 MPa, tensile modulus (Young's modulus): 3424.7 MPa, anti-compression strength: 185MPa, impact strength: 102.69 KJ * m2, Vickers hardness: 23.68.25% CF-PEEK bending strength: 242.8 MPa, bending modulus: 8102.7 MPa, tensile strength: 138.0 MPa, Tensile modulus (Young's modulus): 10714.9MPa, anti-compression strength: 643.4MPa, impact strength: 73.35 KJ * m2, Vickers hardness: 28.62.40% CF-PEEK bending strength: 262.68 MPa, flexural modulus: 10838.8 MPa, tensile strength: 168.3 MPa, tensile modulus (Young's modulus): 14276MPa, anti-compression strength: 815.7 MPa impact strength: 54.24 KJ * m2, Vickers hardness: 42.32. Conclusion: Short carbon fiber can significantly change the bending properties, tensile properties, compression properties, impact resistance and hardness of PEEK. The flexural modulus of 40% CF-PEEK: 10838.8 MPa, the tensile modulus (Young's modulus): 14276MPa, higher than that of PEEK and 20% CF-PEEK, and is close to the modulus of elasticity of the human jaw (Young's modulus).
【学位授予单位】：山西医科大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：R318.01
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