Strong, tough and aqua-degradable poly(glycolic acid)/poly (butyleneadipate-co-terephthalate) composites achieved by interfacial regulation
Poly(glycolic acid) (PGA) has displayed excellent tensile strength, degradability and renewability, but it still faces dilemmas in practical because of its low toughness, poor melt strength and the ease of thermal degradation. In this work, in order to take full advantages of its degradability and h...
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425000936 |
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| author | Chao Ma Mintao Zhu Min Gong Liang Zhang Dongrui Wang Xiang Lin |
| author_facet | Chao Ma Mintao Zhu Min Gong Liang Zhang Dongrui Wang Xiang Lin |
| author_sort | Chao Ma |
| collection | DOAJ |
| description | Poly(glycolic acid) (PGA) has displayed excellent tensile strength, degradability and renewability, but it still faces dilemmas in practical because of its low toughness, poor melt strength and the ease of thermal degradation. In this work, in order to take full advantages of its degradability and high strength, the PGA was toughened by poly(butyleneadipate-co-terephthalate) (PBAT) and reinforced by chopped carbon fibers (CFs) through melt compounding with the help of compatibilizers which facilitated the regulation of interfacial morphology and thereby performance. The evolution of tensile properties, dispersion state of PBAT domains, interface region and rheological behaviors of the blends were analyzed to explore the intrinsic improvement mechanism. Specifically, the increased grafting density of molecular chains revealed from the blend melt viscoelasticity was proposed to be responsible for the greatly enhanced toughness, resulting in an elongation at break of ∼90.45% and a toughness of 49.65 MJ/m3 which were dozens of times higher than PGA itself. Such blend is well capable of incorporating of CFs, showing an ultimate tensile strength ∼135 MPa whereas remaining ductility and aqua-degradability. Overall, this work provided a great potential in replacing metal alloys with the reinforced and toughened PGA composites for the applications of sacrificed tools. |
| format | Article |
| id | doaj-art-a46ffb97040e47ebaf192f3faf0902b3 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-a46ffb97040e47ebaf192f3faf0902b32025-01-18T05:04:45ZengElsevierJournal of Materials Research and Technology2238-78542025-03-01359951007Strong, tough and aqua-degradable poly(glycolic acid)/poly (butyleneadipate-co-terephthalate) composites achieved by interfacial regulationChao Ma0Mintao Zhu1Min Gong2Liang Zhang3Dongrui Wang4Xiang Lin5Lab of Polymer Additive Manufacturing, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaShelfoil Petroleum Equipment & Services Co., Ltd., Dezhou, Shandong, 253074, ChinaLab of Polymer Additive Manufacturing, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaLab of Polymer Additive Manufacturing, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaLab of Polymer Additive Manufacturing, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaLab of Polymer Additive Manufacturing, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Corresponding author.Poly(glycolic acid) (PGA) has displayed excellent tensile strength, degradability and renewability, but it still faces dilemmas in practical because of its low toughness, poor melt strength and the ease of thermal degradation. In this work, in order to take full advantages of its degradability and high strength, the PGA was toughened by poly(butyleneadipate-co-terephthalate) (PBAT) and reinforced by chopped carbon fibers (CFs) through melt compounding with the help of compatibilizers which facilitated the regulation of interfacial morphology and thereby performance. The evolution of tensile properties, dispersion state of PBAT domains, interface region and rheological behaviors of the blends were analyzed to explore the intrinsic improvement mechanism. Specifically, the increased grafting density of molecular chains revealed from the blend melt viscoelasticity was proposed to be responsible for the greatly enhanced toughness, resulting in an elongation at break of ∼90.45% and a toughness of 49.65 MJ/m3 which were dozens of times higher than PGA itself. Such blend is well capable of incorporating of CFs, showing an ultimate tensile strength ∼135 MPa whereas remaining ductility and aqua-degradability. Overall, this work provided a great potential in replacing metal alloys with the reinforced and toughened PGA composites for the applications of sacrificed tools.http://www.sciencedirect.com/science/article/pii/S2238785425000936Poly(glycolic acid)Interfacial compatibilityMechanical properties |
| spellingShingle | Chao Ma Mintao Zhu Min Gong Liang Zhang Dongrui Wang Xiang Lin Strong, tough and aqua-degradable poly(glycolic acid)/poly (butyleneadipate-co-terephthalate) composites achieved by interfacial regulation Journal of Materials Research and Technology Poly(glycolic acid) Interfacial compatibility Mechanical properties |
| title | Strong, tough and aqua-degradable poly(glycolic acid)/poly (butyleneadipate-co-terephthalate) composites achieved by interfacial regulation |
| title_full | Strong, tough and aqua-degradable poly(glycolic acid)/poly (butyleneadipate-co-terephthalate) composites achieved by interfacial regulation |
| title_fullStr | Strong, tough and aqua-degradable poly(glycolic acid)/poly (butyleneadipate-co-terephthalate) composites achieved by interfacial regulation |
| title_full_unstemmed | Strong, tough and aqua-degradable poly(glycolic acid)/poly (butyleneadipate-co-terephthalate) composites achieved by interfacial regulation |
| title_short | Strong, tough and aqua-degradable poly(glycolic acid)/poly (butyleneadipate-co-terephthalate) composites achieved by interfacial regulation |
| title_sort | strong tough and aqua degradable poly glycolic acid poly butyleneadipate co terephthalate composites achieved by interfacial regulation |
| topic | Poly(glycolic acid) Interfacial compatibility Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425000936 |
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