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Further Theoretical Insight into the Mechanical Properties of Polycaprolactone Loaded with Organic–Inorganic Hybrid Fillers

机译：对有机-无机杂化填料负载的聚己内酯力学性能的进一步理论认识

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Experimental/theoretical analyses have already been performed on poly(ε-caprolactone) (PCL) loaded with organic–inorganic fillers (PCL/TiO 2 and PCL/ZrO 2 ) to find a correlation between the results from the small punch test and Young’s modulus of the materials. PCL loaded with Ti2 (PCL = 12, TiO 2 = 88 wt %) and Zr2 (PCL = 12, ZrO 2 = 88 wt %) hybrid fillers showed better performances than those obtained for the other particle composition. In this context, the aim of current research is to provide further insight into the mechanical properties of PCL loaded with sol–gel-synthesized organic–inorganic hybrid fillers for bone tissue engineering. For this reason, theoretical analyses were performed by the finite element method. The results from the small punch test and Young’s modulus of the materials were newly correlated. The obtained values of Young’s modulus (193 MPa for PCL, 378 MPa for PCL/Ti2 and 415 MPa for PCL/Zr2) were higher than those obtained from a previous theoretical modelling (144 MPa for PCL, 282 MPa for PCL/Ti2 and 310 MPa for PCL/Zr2). This correlation will be an important step for the evaluation of Young’s modulus, starting from the small punch test data.
机译：已经对装有有机-无机填料（PCL / TiO 2和PCL / ZrO 2）的聚（ε-己内酯）（PCL）进行了实验/理论分析，以发现小冲头试验的结果与杨氏模量之间的相关性材料。负载有Ti2（PCL = 12，TiO 2 = 88 wt％）和Zr2（PCL = 12，ZrO 2 = 88 wt％）杂化填料的PCL显示出比其他颗粒组成更好的性能。在这种情况下，当前研究的目的是提供进一步的信息，了解PCL的溶胶-凝胶合成的有机-无机杂化填料在骨组织工程中的力学性能。因此，通过有限元方法进行了理论分析。小冲头试验的结果和材料的杨氏模量之间有了新的关联。所获得的杨氏模量值（PCL为193 MPa，PCL / Ti2为378 MPa，PCL / Zr2为415 MPa）高于从先前的理论模型获得的值（PCL为144 MPa，PCL / Ti2为282 MPa和310 MPa（PCL / Zr2）。从小的冲压试验数据开始，这种相关性将是评估杨氏模量的重要步骤。

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