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

1
Department of Industrial Engineering, Fraunhofer JL IDEAS–University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy
2
Institute of Polymers, Composites and Biomaterials—National Research Council of Italy, V.le J.F. Kennedy 54–Mostra d’Oltremare Pad. 20, 80125 Naples, Italy
3
Institute of Orthopaedics and Traumathology, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio, 2-4, 80138 Naples, Italy
4
Department of Industrial and Information Engineering, University of Campania “Luigi Vanvitelli”, Via Roma 29, 81031 Aversa, Italy
*
Author to whom correspondence should be addressed.
Materials 2018, 11(2), 312; https://doi.org/10.3390/ma11020312
Received: 29 December 2017 / Revised: 14 February 2018 / Accepted: 17 February 2018 / Published: 21 February 2018
(This article belongs to the Special Issue Sol-Gel Chemistry Applied to Materials Science)
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Abstract

Experimental/theoretical analyses have already been performed on poly(ε-caprolactone) (PCL) loaded with organic–inorganic fillers (PCL/TiO2 and PCL/ZrO2) 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, TiO2 = 88 wt %) and Zr2 (PCL = 12, ZrO2 = 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. View Full-Text
Keywords: computer-aided design (CAD); mechanical analysis; finite element analysis (FEA); composites; organic–inorganic hybrid materials; biomedical applications computer-aided design (CAD); mechanical analysis; finite element analysis (FEA); composites; organic–inorganic hybrid materials; biomedical applications
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Maietta, S.; Russo, T.; De Santis, R.; Ronca, D.; Riccardi, F.; Catauro, M.; Martorelli, M.; Gloria, A. Further Theoretical Insight into the Mechanical Properties of Polycaprolactone Loaded with Organic–Inorganic Hybrid Fillers. Materials 2018, 11, 312.

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