【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、力學(xué)性能并且與人骨松質(zhì)彈性模量相接近,臨床應(yīng)用前景廣泛。本文旨在研究不同質(zhì)量百分比的短碳纖維(Carbon Fiber;CF)作為增強(qiáng)相的PEEK復(fù)合體材料的力學(xué)性能,明確CF-PEEK復(fù)合體在彎曲性能、拉伸性能、壓縮性能、抗沖擊性能以及硬度方面的參數(shù),為其在口腔醫(yī)學(xué)領(lǐng)域中的應(yīng)用提供基礎(chǔ)。方法:制備擠壓注塑成型的不同質(zhì)量百分比的短碳纖維增強(qiáng)型CF-PEEK復(fù)合材料樣品(0、25%、40%),進(jìn)行機(jī)加工制備標(biāo)準(zhǔn)樣條,并進(jìn)行彎曲性能檢測(cè)(GB/T9341)、拉伸性能檢測(cè)(GB/T1040)、壓縮性能檢測(cè)(GB/T1041)、抗沖擊性能檢測(cè)(GB/Tl043)、維氏硬度檢測(cè)GB/T4340,獲取相應(yīng)的參數(shù)。結(jié)果:實(shí)驗(yàn)測(cè)試PEEK其抗彎曲強(qiáng)度:142.7MPa,彎曲模量:3067.8MPa,拉伸強(qiáng)度:64.7MPa,拉伸模量(楊氏模量):3424.7MPa,抗壓縮強(qiáng)度:185MPa,抗沖擊強(qiáng)度:102.69KJ*m2,維氏硬度:23.68。25%CF-PEEK彎曲強(qiáng)度:242.8MPa,彎曲模量:8102.7MPa,拉伸強(qiáng)度:138.0MPa,拉伸模量(楊氏模量):10714.9MPa,抗壓縮強(qiáng)度:643.4MPa,抗沖擊強(qiáng)度:73.35KJ*m2,維氏硬度:28.62。40%CF-PEEK彎曲強(qiáng)度:262.68MPa,彎曲模量:10838.8MPa,拉伸強(qiáng)度:168.3MPa,拉伸模量(楊氏模量):14272.6MPa,抗壓縮強(qiáng)度:815.7MPa抗沖擊強(qiáng)度:54.24 KJ*m2,維氏硬度:42.32。結(jié)論:短碳纖維可以顯著改變PEEK的彎曲性能、拉伸性能、壓縮性能、抗沖擊性能和硬度。40%CF-PEEK彎曲模量:10838.8MPa,拉伸模量(楊氏模量):14272.6MPa,高于PEEK和20%CF-PEEK組,與人頜骨彈性模量相接近(楊氏模量)。
[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).
【學(xué)位授予單位】：山西醫(yī)科大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：R318.01

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