【摘要】 采用Ca（OH）₂/H₃PO₄中和反应,超声分散条件下制备β-TCP粉末原料;通过致孔剂方法制备多孔β-TCP支架,并在β-TCP成型过程中加入K₂HPO₄提高支架强度;将制备的多孔支架与明胶复合,冷冻干燥后与戊二醛交联,得到多孔β-TCP/明胶复合支架。实验表明,加入K₂HPO₄后提高了支架强度,当多孔β-TCP支架孔隙率为49.47%时抗压强度为7.60 MPa。多孔β-TCP支架的孔隙率高、强度高、孔隙大小可控、孔隙连通性好;进一步与明胶复合后,制备的多孔β-TCP/明胶复合材料,符合组织工程结构特征的要求。更多还原

【Abstract】 Pure P-TCP powders were prepared from Ca（OH）₂/H₃PO₄ in the ultrasonic field.The powders were added with K₂HPO₄ and mixed with porogens as the stearic acid.The porousβ-TCP scaffolds were mixed with gelatin and cross-linked with glutaraldehyde.The compressive strength of the porousβ-TCP scaffold by the addition of K₂HPO₄ was increased.The composite of porosity 49.47%has the compressive strength of 7.60 MPa.The pores in theβ-TCP scaffolds were homogeneous and interconnected,and theβ-TCP/Gel composite scaffold was close to bones in its composition and structures.更多还原