Alessia Romani

Design & Engineering Research

Additive Re-Manufacturing of Mechanically Recycled End-of-Life Glass Fiber-Reinforced Polymers for Value-Added Circular Design


Journal article


Alessia Romani, Andrea Mantelli, Raffaella Suriano*, Marinella Levi, Stefano Turri
Materials, vol. 13(16), 2020 Aug, p. 3545


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APA   Click to copy
Romani, A., Mantelli, A., Suriano*, R., Levi, M., & Turri, S. (2020). Additive Re-Manufacturing of Mechanically Recycled End-of-Life Glass Fiber-Reinforced Polymers for Value-Added Circular Design. Materials, 13(16), 3545. https://doi.org/10.3390/ma13163545


Chicago/Turabian   Click to copy
Romani, Alessia, Andrea Mantelli, Raffaella Suriano*, Marinella Levi, and Stefano Turri. “Additive Re-Manufacturing of Mechanically Recycled End-of-Life Glass Fiber-Reinforced Polymers for Value-Added Circular Design.” Materials 13, no. 16 (August 2020): 3545.


MLA   Click to copy
Romani, Alessia, et al. “Additive Re-Manufacturing of Mechanically Recycled End-of-Life Glass Fiber-Reinforced Polymers for Value-Added Circular Design.” Materials, vol. 13, no. 16, Aug. 2020, p. 3545, doi:10.3390/ma13163545.


BibTeX   Click to copy

@article{alessia2020a,
  title = {Additive Re-Manufacturing of Mechanically Recycled End-of-Life Glass Fiber-Reinforced Polymers for Value-Added Circular Design},
  year = {2020},
  month = aug,
  issue = {16},
  journal = {Materials},
  pages = {3545},
  volume = {13},
  doi = {10.3390/ma13163545},
  author = {Romani, Alessia and Mantelli, Andrea and Suriano*, Raffaella and Levi, Marinella and Turri, Stefano},
  month_numeric = {8}
}

Abstract

Despite the large use of composites for industrial applications, their end-of-life management is still an open issue for manufacturing, especially in the wind energy sector. Additive manufacturing technology has been emerging as a solution, enhancing circular economy models, and using recycled composites for glass fiber-reinforced polymers is spreading as a new additive manufacturing trend. Nevertheless, their mechanical properties are still not comparable to pristine materials. The purpose of this paper is to examine the additive re-manufacturing of end-of-life glass fiber composites with mechanical performances that are comparable to virgin glass fiber-reinforced materials. Through a systematic characterization of the recyclate, requirements of the filler for the liquid deposition modeling process were identified. Printability and material surface quality of different formulations were analyzed using a low-cost modified 3D printer. Two hypothetical design concepts were also manufactured to validate the field of application. Furthermore, an understanding of the mechanical behavior was accomplished by means of tensile tests, and the results were compared with a benchmark formulation with virgin glass fibers. Mechanically recycled glass fibers show the capability to substitute pristine fillers, unlocking their use for new fields of application. 1

Keywords

Additive manufacturing // Liquid deposition modeling // Composites // Glass fibers // End-of-life materials // Circular economy // 3D printing


Resources and links

  • 📑 Full text (publisher version) 2
  • 🛠️ Zenodo (Syringe extruder) 3
  • 🛠️ Zenodo (3Drag printer firmware) 4
  • 🛠️ Zenodo (UV curing addon) 5



  1. Romani, A., and Levi, M., 2025. Indirect 3D Printing of recycled glass fibres from end-of-life products. Towards a design engineering approach to circular design. In: Schnitzer, H., Braunegg, S. (Eds). Proceedings of the 20th European Roundtable on Sustainable Consumption and Production, 515-530. TU Graz. DOI: 10.3217/978-3-85125-842-4-10

  2. Romani, A., Mantelli, A., Suriano, R., Levi, M., and Turri, S., 2020. Additive Re-Manufacturing of Mechanically Recycled End-of-Life Glass Fiber-Reinforced Polymers for Value-Added Circular Design. Materials, Vol 13(16), 3545. DOI: 10.3390/ma13163545

  3. Mantelli, A., 2020. Syringe extruder for 3Drag printer. Project repository. Available at Zenodo.org. DOI: 10.5281/zenodo.4295839

  4. Mantelli, A., 2020. 3Drag printer custom firmware for Liquid Deposition Modeling mode. Project repository. Available at Zenodo.org. DOI: 10.5281/zenodo.4438495

  5. Mantelli, A., 2020. 3Drag UV curing addon. Project repository. Available at Zenodo.org. DOI: 10.5281/zenodo.4298908