Porous CaSiO₃‐CaSO₄ composite scaffolds were successfully prepared by 3D gel‐printing (3DGP) technology in this study. In order to further improve the degradation performance of pure CaSiO₃ scaffolds, the effect of different CaSO₄ doping contents on CaSiO₃‐CaSO₄ composite scaffolds was studied. The results show that when the porous composite scaffolds were placed in simulated body fluid (SBF) for 5 weeks, the weight loss rate was 2.41% (CaSiO₃‐1%CaSO₄), 3.97% (CaSiO₃‐3%CaSO₄), 4.18% (CaSiO₃‐5%CaSO₄), 6.87% (CaSiO₃‐7%CaSO₄), and 12.93% (CaSiO₃‐9%CaSO₄), respectively, which could be concluded that CaSO₄ doping has a significant effect on improving the biodegradability of CaSiO₃ scaffolds. And CaSO₄ doping can also effectively improve the compressive strength of composite scaffolds and that of CaSiO₃‐3%CaSO₄ composite scaffolds was tested as 54.67 MPa, and the shrinkage rate of porous composite scaffolds was nearly 11.4%, which meets the application requirements of bone repairing engineering.

中文翻译：

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通过3D凝胶打印不同CaSO4含量对CaSiO3‐CaSO4多孔复合骨支架的影响

在本研究中，通过3D凝胶印刷（3DGP）技术成功制备了多孔CaSiO ₃ -CaSO ₄复合支架。为了进一步提高纯CaSiO ₃支架的降解性能，研究了不同CaSO ₄掺杂量对CaSiO ₃ -CaSO ₄复合支架的影响。结果表明，将多孔复合支架放置在模拟体液（SBF）中5周后，失重率为2.41％（CaSiO ₃ -1％CaSO ₄），3.97％（CaSiO ₃ -3％CaSO ₄）。 ，4.18％（CaSiO ₃ -5％CaSO ₄），6.87％（CaSiO ₃-7％CASO ₄），和12.93％（CASIO ₃ -9％的CaSO ₄分别地），这可以得出结论的CaSO ₄掺杂对提高CASIO的生物降解性显著效果₃支架。CaSO ₄掺杂还可以有效提高复合支架的抗压强度，CaSiO ₃ -3％CaSO ₄复合支架的抗压强度为54.67 MPa，多孔复合支架的收缩率接近11.4％，满足应用要求。修复工程。