3D‐Printed Inherently Porous Structures with Tetrahedral Lattice Architecture: Experimental and Computational Study of Their Mechanical Behavior
Abstract Increasing demand in automotive, construction, and medical industries for materials with reduced weight and high mechanical durability has given rise to porous materials and composites. Materials combining nano‐ and microporosity and a well‐defined cellular macroporous architecture offer gr...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-09-01
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| Series: | Macromolecular Materials and Engineering |
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| Online Access: | https://doi.org/10.1002/mame.202300041 |
| _version_ | 1797684992679084032 |
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| author | Maria A. Kuzina Chantal M. Kurpiers Ya‐Yun Tsai Ruth Schwaiger Shu‐Wei Chang Pavel Levkin |
| author_facet | Maria A. Kuzina Chantal M. Kurpiers Ya‐Yun Tsai Ruth Schwaiger Shu‐Wei Chang Pavel Levkin |
| author_sort | Maria A. Kuzina |
| collection | DOAJ |
| description | Abstract Increasing demand in automotive, construction, and medical industries for materials with reduced weight and high mechanical durability has given rise to porous materials and composites. Materials combining nano‐ and microporosity and a well‐defined cellular macroporous architecture offer great potential weight reduction while maintaining mechanical durability. To achieve predictable mechanical performance, it is essential to apply experimental and computational efforts to precisely describe material structure–properties relationships. This study explores polymer structures with polymerization‐inherited porosity and well‐defined macroporous geometry, fabricated via digital light processing (DLP) 3Dprinting. Pore size and relative density are varied by ink composition and printing parameters to track their influence on the structure stiffness. Simulated stiffness values for the base polymer correspond to the experimentally determined elastic properties, showing Young's moduli of 554–722 MPa depending on the cosolvent ratio, which confirms the structure–properties relationship. Macroporosity is introduced in the form of a 3D tetrahedral bending‐dominated architecture with the resulting specific Young's moduli of 79.5 MPa cm3 g−1, comparable to foams. To merge the gap in stiffnesses, further investigation of structure–property relationships of various 3D–printed lattice architectures, as well as its application to other stereolithography methods to eliminate the negative effects from printing artifacts and resolution limit of the DLP 3D‐printing, are envisioned. |
| first_indexed | 2024-03-12T00:38:50Z |
| format | Article |
| id | doaj.art-122783338ffe4441ad22160939d33c50 |
| institution | Directory Open Access Journal |
| issn | 1438-7492 1439-2054 |
| language | English |
| last_indexed | 2024-03-12T00:38:50Z |
| publishDate | 2023-09-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Macromolecular Materials and Engineering |
| spelling | doaj.art-122783338ffe4441ad22160939d33c502023-09-15T09:14:12ZengWiley-VCHMacromolecular Materials and Engineering1438-74921439-20542023-09-013089n/an/a10.1002/mame.2023000413D‐Printed Inherently Porous Structures with Tetrahedral Lattice Architecture: Experimental and Computational Study of Their Mechanical BehaviorMaria A. Kuzina0Chantal M. Kurpiers1Ya‐Yun Tsai2Ruth Schwaiger3Shu‐Wei Chang4Pavel Levkin5Institute of Biological and Chemical Systems—Functional Materials Systems (IBCS‐FMS) Karlsruhe Institute of Technology (KIT) 76344 Eggenstein‐Leopoldshafen GermanyInstitute for Applied Materials (IAM) Karlsruhe Institute of Technology (KIT) 76344 Eggenstein‐Leopoldshafen GermanyDepartment of Civil Engineering National Taiwan University 10617 Taipei TaiwanInstitute of Energy and Climate Research—Microstructure and Properties of Materials (IEK‐2) Forschungszentrum Jülich 52425 Jülich GermanyDepartment of Civil Engineering National Taiwan University 10617 Taipei TaiwanInstitute of Organic Chemistry (IOC) Karlsruhe Institute of Technology (KIT) 76021 Karlsruhe GermanyAbstract Increasing demand in automotive, construction, and medical industries for materials with reduced weight and high mechanical durability has given rise to porous materials and composites. Materials combining nano‐ and microporosity and a well‐defined cellular macroporous architecture offer great potential weight reduction while maintaining mechanical durability. To achieve predictable mechanical performance, it is essential to apply experimental and computational efforts to precisely describe material structure–properties relationships. This study explores polymer structures with polymerization‐inherited porosity and well‐defined macroporous geometry, fabricated via digital light processing (DLP) 3Dprinting. Pore size and relative density are varied by ink composition and printing parameters to track their influence on the structure stiffness. Simulated stiffness values for the base polymer correspond to the experimentally determined elastic properties, showing Young's moduli of 554–722 MPa depending on the cosolvent ratio, which confirms the structure–properties relationship. Macroporosity is introduced in the form of a 3D tetrahedral bending‐dominated architecture with the resulting specific Young's moduli of 79.5 MPa cm3 g−1, comparable to foams. To merge the gap in stiffnesses, further investigation of structure–property relationships of various 3D–printed lattice architectures, as well as its application to other stereolithography methods to eliminate the negative effects from printing artifacts and resolution limit of the DLP 3D‐printing, are envisioned.https://doi.org/10.1002/mame.2023000413D printed polymersinherently porous polymerstetrahedral lattices |
| spellingShingle | Maria A. Kuzina Chantal M. Kurpiers Ya‐Yun Tsai Ruth Schwaiger Shu‐Wei Chang Pavel Levkin 3D‐Printed Inherently Porous Structures with Tetrahedral Lattice Architecture: Experimental and Computational Study of Their Mechanical Behavior Macromolecular Materials and Engineering 3D printed polymers inherently porous polymers tetrahedral lattices |
| title | 3D‐Printed Inherently Porous Structures with Tetrahedral Lattice Architecture: Experimental and Computational Study of Their Mechanical Behavior |
| title_full | 3D‐Printed Inherently Porous Structures with Tetrahedral Lattice Architecture: Experimental and Computational Study of Their Mechanical Behavior |
| title_fullStr | 3D‐Printed Inherently Porous Structures with Tetrahedral Lattice Architecture: Experimental and Computational Study of Their Mechanical Behavior |
| title_full_unstemmed | 3D‐Printed Inherently Porous Structures with Tetrahedral Lattice Architecture: Experimental and Computational Study of Their Mechanical Behavior |
| title_short | 3D‐Printed Inherently Porous Structures with Tetrahedral Lattice Architecture: Experimental and Computational Study of Their Mechanical Behavior |
| title_sort | 3d printed inherently porous structures with tetrahedral lattice architecture experimental and computational study of their mechanical behavior |
| topic | 3D printed polymers inherently porous polymers tetrahedral lattices |
| url | https://doi.org/10.1002/mame.202300041 |
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