论文部分内容阅读
三维打印(3DP)成型技术适合成型形状复杂、结构精细的个体化多孔医用生物植入材料,能满足不同患者的不同需求。本文应用3DP成型技术制备直径为25mm×20mm的多孔纯钛植入体生柸,于500℃真空脱粘后,在氩气保护下烧结至1 300℃,利用扫描电镜(SEM)观察其孔径大小介于50～150μm,其孔隙率、体积密度、维氏硬度、抗压强度及弹性模量测试结果分别为(44.26±2.43)%、(2.59±0.81)g/cm3、134.2～151.6、(61.2±3.2)MPa、(3.25±1.08)GPa。结果表明,3DP成型技术在制备个体化多孔纯钛植入体方面有着广阔的应用前景。
Three-dimensional printing (3DP) molding technology suitable for forming complex shape, fine structure of the individual porous medical bio-implanted material to meet the different needs of different patients. In this paper, a porous titanium implant with a diameter of 25mm × 20mm was prepared by 3DP molding technology, vacuum debonded at 500 ℃, sintered to 1300 ℃ under the protection of argon gas, the pore size was observed by scanning electron microscopy (SEM) (44.26 ± 2.43)%, (2.59 ± 0.81) g / cm3, 134.2 ~ 151.6 and (61.2) were obtained in the range of 50-150μm, respectively. The porosity, bulk density, Vickers hardness, compressive strength and elastic modulus ± 3.2) MPa, (3.25 ± 1.08) GPa. The results show that 3DP molding technology has broad application prospects in the preparation of personalized porous titanium implant.