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Article

Study of the Influence of PCL on the In Vitro Degradation of Extruded PLA Monofilaments and Melt-Spun Filaments

1
ENSAIT, GEMTEX—Laboratoire de Génie et Matériaux Textiles, F-59000 Lille, France, 2 Allée Louise et Victor Champier, 59056 Roubaix CEDEX 1, France
2
MATERIA NOVA—R&D CENTER, Avenue Nicolas Copernic 3, 7000 Mons, Belgique
*
Author to whom correspondence should be addressed.
Polymers 2021, 13(2), 171; https://doi.org/10.3390/polym13020171
Received: 23 November 2020 / Revised: 17 December 2020 / Accepted: 30 December 2020 / Published: 6 January 2021
(This article belongs to the Special Issue Smart Textile)
This work presents the effect of a melt-spinning process on the degradation behavior of bioresorbable and immiscible poly(d,l-lactide) (PLA) and polycaprolactone (PCL) polymer blends. A large range of these blends, from PLA90PCL10 (90 wt% PLA and 10 wt% PCL) to PLA60PCL40 in increments of 10%, was processed via extrusion (diameter monofilament: ∅ ≈ 1 mm) and melt spinning (80 filaments: 50 to 70 µm each) to evaluate the impact of the PCL ratio and then melt spinning on the hydrolytic degradation of PLA, which allowed for highlighting the potential of a textile-based scaffold in bioresorbable implants. The morphologies of the structures were investigated via extracting PCL with acetic acid and scanning electron microscopy observations. Then, they were immersed in a Dulbecco’s Modified Eagle Medium (DMEM) media at 50 °C for 35 days and their properties were tested in order to evaluate the relation between the morphology and the evolution of the crystallinity degree and the mechanical and physical properties. As expected, the incorporation of PCL into the PLA matrix slowed down the hydrolytic degradation. It was shown that the degradation became heterogeneous with a small ratio of PCL. Finally, melt spinning had an impact on the morphology, and consequently, on the other properties over time. View Full-Text
Keywords: biodegradable polymers; polyesters; immiscible blend; extrusion; melt spinning biodegradable polymers; polyesters; immiscible blend; extrusion; melt spinning
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MDPI and ACS Style

Barral, V.; Dropsit, S.; Cayla, A.; Campagne, C.; Devaux, É. Study of the Influence of PCL on the In Vitro Degradation of Extruded PLA Monofilaments and Melt-Spun Filaments. Polymers 2021, 13, 171. https://doi.org/10.3390/polym13020171

AMA Style

Barral V, Dropsit S, Cayla A, Campagne C, Devaux É. Study of the Influence of PCL on the In Vitro Degradation of Extruded PLA Monofilaments and Melt-Spun Filaments. Polymers. 2021; 13(2):171. https://doi.org/10.3390/polym13020171

Chicago/Turabian Style

Barral, Vivien, Sophie Dropsit, Aurélie Cayla, Christine Campagne, and Éric Devaux. 2021. "Study of the Influence of PCL on the In Vitro Degradation of Extruded PLA Monofilaments and Melt-Spun Filaments" Polymers 13, no. 2: 171. https://doi.org/10.3390/polym13020171

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