Static and Impact Properties of Flax-Reinforced Polymers Prepared with Conventional Epoxy and Sustainable Resins
The study assessed the tensile, flexural, and impact properties of composite materials reinforced with flax fibers, employing three distinct resin types. The composite laminates were fabricated using three commercial resins: a conventional epoxy resin, an epoxy resin with a 31% weight concentration...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/16/2/190 |
| _version_ | 1797342756054499328 |
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| author | Raffaele Ciardiello Alessandro Benelli Davide Salvatore Paolino |
| author_facet | Raffaele Ciardiello Alessandro Benelli Davide Salvatore Paolino |
| author_sort | Raffaele Ciardiello |
| collection | DOAJ |
| description | The study assessed the tensile, flexural, and impact properties of composite materials reinforced with flax fibers, employing three distinct resin types. The composite laminates were fabricated using three commercial resins: a conventional epoxy resin, an epoxy resin with a 31% weight concentration of bio-renewable content, and a recyclable methyl methacrylate infusion resin. This aims to assess if there exists a commercially available alternative to the traditional epoxy resin that can reduce the overall carbon footprint of composite materials. To investigate the influence of humidity on the mechanical behavior of the flax layers, a drying treatment was applied to the fibers before the infusion process. Micro-computed tomography analysis revealed that heat treatment resulted in a reduction of porosity, although it did not affect the mechanical response of the composite laminates. Moreover, laminates produced with non-recyclable and sustainable resins exhibited no significant change in tensile and flexural modulus. In contrast, those produced with recyclable resin demonstrated a slight reduction in the strengths of the composite laminates. Conversely, out-of-plane impact tests and repeated impact tests indicated that composites prepared with recyclable and bio-epoxy resin formulations present superior damage resistance to repeated impact compared to traditional epoxy resin. |
| first_indexed | 2024-03-08T10:37:53Z |
| format | Article |
| id | doaj.art-d9ac7dbb2d154cf4ba6a65671d464a22 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-08T10:37:53Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-d9ac7dbb2d154cf4ba6a65671d464a222024-01-26T18:13:04ZengMDPI AGPolymers2073-43602024-01-0116219010.3390/polym16020190Static and Impact Properties of Flax-Reinforced Polymers Prepared with Conventional Epoxy and Sustainable ResinsRaffaele Ciardiello0Alessandro Benelli1Davide Salvatore Paolino2Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, ItalyInter-Departmental Multi-Disciplinary Research Centre J-TECH @PoliTO, 10129 Turin, ItalyDepartment of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, ItalyThe study assessed the tensile, flexural, and impact properties of composite materials reinforced with flax fibers, employing three distinct resin types. The composite laminates were fabricated using three commercial resins: a conventional epoxy resin, an epoxy resin with a 31% weight concentration of bio-renewable content, and a recyclable methyl methacrylate infusion resin. This aims to assess if there exists a commercially available alternative to the traditional epoxy resin that can reduce the overall carbon footprint of composite materials. To investigate the influence of humidity on the mechanical behavior of the flax layers, a drying treatment was applied to the fibers before the infusion process. Micro-computed tomography analysis revealed that heat treatment resulted in a reduction of porosity, although it did not affect the mechanical response of the composite laminates. Moreover, laminates produced with non-recyclable and sustainable resins exhibited no significant change in tensile and flexural modulus. In contrast, those produced with recyclable resin demonstrated a slight reduction in the strengths of the composite laminates. Conversely, out-of-plane impact tests and repeated impact tests indicated that composites prepared with recyclable and bio-epoxy resin formulations present superior damage resistance to repeated impact compared to traditional epoxy resin.https://www.mdpi.com/2073-4360/16/2/190bio-based resinrecyclable resincomposite materialsmoisturemechanical propertiesimpacts |
| spellingShingle | Raffaele Ciardiello Alessandro Benelli Davide Salvatore Paolino Static and Impact Properties of Flax-Reinforced Polymers Prepared with Conventional Epoxy and Sustainable Resins Polymers bio-based resin recyclable resin composite materials moisture mechanical properties impacts |
| title | Static and Impact Properties of Flax-Reinforced Polymers Prepared with Conventional Epoxy and Sustainable Resins |
| title_full | Static and Impact Properties of Flax-Reinforced Polymers Prepared with Conventional Epoxy and Sustainable Resins |
| title_fullStr | Static and Impact Properties of Flax-Reinforced Polymers Prepared with Conventional Epoxy and Sustainable Resins |
| title_full_unstemmed | Static and Impact Properties of Flax-Reinforced Polymers Prepared with Conventional Epoxy and Sustainable Resins |
| title_short | Static and Impact Properties of Flax-Reinforced Polymers Prepared with Conventional Epoxy and Sustainable Resins |
| title_sort | static and impact properties of flax reinforced polymers prepared with conventional epoxy and sustainable resins |
| topic | bio-based resin recyclable resin composite materials moisture mechanical properties impacts |
| url | https://www.mdpi.com/2073-4360/16/2/190 |
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