In this paper, poly(ether ether ketone) (PEEK) scaffold was manufactured using the fused deposition modeling (FDM) technology with a modified platform. The effect of processing parameters of FDM on the porosity and compressive strength of PEEK scaffold with uniform pores (0.8 mm of diameter) was optimized through Taguchi methodology. With the determined parameters, four kinds of PEEK scaffolds with gradient pores (0.4–0.8 mm, 0.6–1.0 mm, 0.8–1.2 mm, and 1.2–2.0 mm) were manufactured. The scaffolds were investigated using scanning electron microscopy. The results showed that the pores of scaffolds were interconnected with rough surface, which can allow the attachment, migration, and differentiation of cells for bone forming. The tensile strength, compressive max strength, and compressive yield strength of scaffolds were between 18 and 35 MPa, 197.83 and 370.42 MPa, and 26 and 36 MPa, respectively. The mechanical properties of the scaffolds can satisfy the loading requirements of human bones. Therefore, the PEEK scaffolds have a potential to be used in tissue engineering as implants.

中文翻译：

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聚醚醚酮支架的熔融沉积建模

在本文中，聚醚醚酮（PEEK）支架是使用融合沉积建模（FDM）技术和改进的平台制造的。通过Taguchi方法优化了FDM加工参数对具有均匀孔（直径0.8 mm）的PEEK支架的孔隙率和抗压强度的影响。通过确定的参数，制造出了四种具有梯度孔的PEEK支架（0.4-0.8 mm，0.6-1.0 mm，0.8-1.2 mm和1.2-2.0 mm）。使用扫描电子显微镜研究支架。结果表明，支架的孔与粗糙的表面相互连接，可以使细胞附着，迁移和分化，从而形成骨骼。脚手架的抗张强度，最大抗压强度和抗压屈服强度为18至35 MPa，197。分别为83和370.42 MPa，以及26和36 MPa。支架的机械性能可以满足人体骨骼的负荷要求。因此，PEEK支架具有在组织工程中用作植入物的潜力。