Single-polymer composites based on polylactide continuous core-sheath bicomponent fibers
Biopolymers offer a potential solution to the challenges posed by conventional plastics in terms of resource conservation and environmental protection. One area of application is the use of biopolymers in single polymer composite (SPC) materials. This paper describes the formation of a Polylactide (...
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| Language: | English |
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Elsevier
2025-01-01
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| Series: | Polymer Testing |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941824003532 |
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| author | Boris Marx Lars Bostan Andrea Miene David May |
| author_facet | Boris Marx Lars Bostan Andrea Miene David May |
| author_sort | Boris Marx |
| collection | DOAJ |
| description | Biopolymers offer a potential solution to the challenges posed by conventional plastics in terms of resource conservation and environmental protection. One area of application is the use of biopolymers in single polymer composite (SPC) materials. This paper describes the formation of a Polylactide (PLA) SPC using continuous bicomponent fibers which allows to realize a high fiber volume content (φ) of 75 %. The sheath of the fiber is made of amorphous PLA, while the core is made of semi-crystalline PLA. After consolidating the continuous bicomponent fiber into SPC, the amorphous PLA provides the matrix while the semi-crystalline PLA serves as reinforcement. The mechanical testing in fiber direction of the PLA-SPC resulted in a tensile strength of 107.5 ± 2.2 MPa and a Young's modulus of 9.7 ± 0.6 GPa. Differential scanning calorimetry (DSC) revealed two melting points for amorphous PLA (141.1 ± 0.2 °C) and semi-crystalline PLA (178.2 ± 0.9 °C). The SPC developed from PLA continuous bicomponent fibers shows a significantly higher Young's modulus compared to other PLA-SPC that is comparable to polyethylene terephthalate (PET) SPC. |
| format | Article |
| id | doaj-art-e28d42a45237424394a139490e1bdd40 |
| institution | DOAJ |
| issn | 1873-2348 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj-art-e28d42a45237424394a139490e1bdd402025-08-20T02:40:21ZengElsevierPolymer Testing1873-23482025-01-0114210867610.1016/j.polymertesting.2024.108676Single-polymer composites based on polylactide continuous core-sheath bicomponent fibersBoris Marx0Lars Bostan1Andrea Miene2David May3Faserinstitut Bremen, Am Biologischen Garten 2 – Geb. IW3, D-28359, Bremen, Germany; University of Bremen, Faculty of Production Engineering, Materials Engineering/Fibers and Fiber Composites Research Group, Am Biologischen Garten 2 – Geb. IW3, D-28359, Bremen, Germany; MAPEX Center for Materials and Processes, University of Bremen, Bibliothekstraße 1, D-28359, Bremen, Germany; Corresponding author. Faserinstitut Bremen, Am Biologischen Garten 2 – Geb. IW3, D-28359, Bremen, Germany.Faserinstitut Bremen, Am Biologischen Garten 2 – Geb. IW3, D-28359, Bremen, GermanyFaserinstitut Bremen, Am Biologischen Garten 2 – Geb. IW3, D-28359, Bremen, GermanyFaserinstitut Bremen, Am Biologischen Garten 2 – Geb. IW3, D-28359, Bremen, Germany; University of Bremen, Faculty of Production Engineering, Materials Engineering/Fibers and Fiber Composites Research Group, Am Biologischen Garten 2 – Geb. IW3, D-28359, Bremen, Germany; MAPEX Center for Materials and Processes, University of Bremen, Bibliothekstraße 1, D-28359, Bremen, GermanyBiopolymers offer a potential solution to the challenges posed by conventional plastics in terms of resource conservation and environmental protection. One area of application is the use of biopolymers in single polymer composite (SPC) materials. This paper describes the formation of a Polylactide (PLA) SPC using continuous bicomponent fibers which allows to realize a high fiber volume content (φ) of 75 %. The sheath of the fiber is made of amorphous PLA, while the core is made of semi-crystalline PLA. After consolidating the continuous bicomponent fiber into SPC, the amorphous PLA provides the matrix while the semi-crystalline PLA serves as reinforcement. The mechanical testing in fiber direction of the PLA-SPC resulted in a tensile strength of 107.5 ± 2.2 MPa and a Young's modulus of 9.7 ± 0.6 GPa. Differential scanning calorimetry (DSC) revealed two melting points for amorphous PLA (141.1 ± 0.2 °C) and semi-crystalline PLA (178.2 ± 0.9 °C). The SPC developed from PLA continuous bicomponent fibers shows a significantly higher Young's modulus compared to other PLA-SPC that is comparable to polyethylene terephthalate (PET) SPC.http://www.sciencedirect.com/science/article/pii/S0142941824003532PolylactideContinuous bicomponent fibersSheath-core-structureMelt spinningSingle polymer composites |
| spellingShingle | Boris Marx Lars Bostan Andrea Miene David May Single-polymer composites based on polylactide continuous core-sheath bicomponent fibers Polymer Testing Polylactide Continuous bicomponent fibers Sheath-core-structure Melt spinning Single polymer composites |
| title | Single-polymer composites based on polylactide continuous core-sheath bicomponent fibers |
| title_full | Single-polymer composites based on polylactide continuous core-sheath bicomponent fibers |
| title_fullStr | Single-polymer composites based on polylactide continuous core-sheath bicomponent fibers |
| title_full_unstemmed | Single-polymer composites based on polylactide continuous core-sheath bicomponent fibers |
| title_short | Single-polymer composites based on polylactide continuous core-sheath bicomponent fibers |
| title_sort | single polymer composites based on polylactide continuous core sheath bicomponent fibers |
| topic | Polylactide Continuous bicomponent fibers Sheath-core-structure Melt spinning Single polymer composites |
| url | http://www.sciencedirect.com/science/article/pii/S0142941824003532 |
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