Design and simulation of a resorbable bone fixation plate made by additive manufacturing for femoral mid-SHAFT fractures

Martínez, Juan Ivorra; Sellès, M.A.; Sánchez-Caballero, Samuel; Boronat, Teodomiro

doi:10.4995/jarte.2021.14712

Cited by 4 publications

(1 citation statement)

References 32 publications

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“…[5] Moreover, PLA is a widely used standard material in 3D printing and in the manufacturing of medical devices, since it is a biocompatible and resorbable polymer. [6][7][8][9] PLA is synthesized through biomass hydrolysis followed by fermentation, which produces lactic acid that is then converted into lactide, and subsequently, into poly(lactide) by ring-opening polymerization (ROP). [10] Although its use provides the aforementioned advantages, there are some drawbacks mainly related to a high stiffness and a brittle behavior attributed to a T g (glass transition temperature) above room temperature (close to 60 °C).…”

Section: Introductionmentioning

confidence: 99%

The Potential of an Itaconic Acid Diester as Environmentally Friendly Plasticizer for Injection‐Molded Polylactide Parts

Martínez

Peydró

Gomez‐Caturla

et al. 2022

Macro Materials & Eng

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This work reports on the use of dibutyl itaconate (DBI) as an environmentally friendly plasticizer for polylactide (PLA) with different proportions of DBI in the 2.5–20 wt% (weight content) range. A co‐rotating twin‐screw extrusion process followed by injection molding is employed for the manufacturing of the samples. The results show that the plasticized PLA formulation with 10 wt% DBI offers the most balanced overall properties, with a noticeable increase in the elongation at break from 4.6% (neat PLA) up to 322%, with a tensile modulus of 1572 MPa, and a tensile strength of 23.8 MPa. In the case of 15 and 20 wt% DBI formulations, PLA reaches the saturation point with no more increase in the elongation at break and a clear decrease in the tensile modulus. DBI also decreases the glass transition temperature (Tg) from 61.3 °C (neat PLA) down to 23.4 °C for plasticized PLA formulation containing 20 wt% DBI, thus showing the high plasticization efficiency of DBI.

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