Documents published in Scipedia

• Research, selection, and validation of sustainable reinforcement fibers for use in composites intended for: automotive, infrastructure, and aeronautics.

  I. Doménech, C. Santamaría, J. Pascual Bernabéu

  Materiales Compuestos (Online first).

  
  

  Abstract

  Under the coordination of AITEX and in collaboration with the partners of the r-LightBioCom project, intensive research, selection, and validation of sustainable reinforcement fibers (natural, recyclable or recycled, and with low environmental impact) have been carried out for use in composites that will be validated in automotive demonstrators (spoiler and trunk floor), infrastructure (tunnel lining), and aeronautics (wing leading edge). In this area, the following achievements stand out: Validation procedure regarding processability and mechanical characteristics of various sustainable reinforcement fibers (recycled carbon and glass fibers, natural fibers, basalt fiber, and recycled aramid fiber). Development of sustainable textile intermediates (fabrics, mats, pre-pregs, honeycombs, and rovings) through the adaptation of textile technologies for processing the selected reinforcement fibers and compatible with bio-based resins. Hybridization of sustainable reinforcement fibers with virgin filaments to improve mechanical properties while maintaining low environmental impact. The results obtained indicate that the selection of alternative and more sustainable fibers than those usually used in the production of composites are suitable for the development of the aforementioned demonstrators in terms of processability and resistance.​ The results obtained indicate that the selection of alternative and more sustanaible fibers than those usually used in the production of composites are suitable for the develpment of the aforementioned demonstrators in terms of processability and resistance.

  Abstract
  Under the coordination of AITEX and in collaboration with the partners of the r-LightBioCom project, intensive research, selection, and validation of sustainable reinforcement [...]

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• CHAPTER 23: REVALUATION OF RECYCLED REINFORCEMENT FIBERS THROUGH TEXTILE TECHNOLOGIES

  I. Doménech, J. Pascual Bernabéu

  libro-blanco-materiales-compuestos (2025). 65

  
  

  Abstract

  This chapter addresses the environmental and energy challenges posed by the increasing production of composite materials, particularly those reinforced with carbon and glass fibres. Current recycling technologies focused on fibre recovery, such as thermal and chemical methods, now enable the production of fibres suitable for reintegration into the value chain. The chapter details adapted textile technologies for processing these recycled fibres, covering methods from non-woven fabric production to the newest manufacturing technology of yarns and unidirectional tapes. Technologies such as carding and yarn formation are analyzed, highlighting the need for hybridization with virgin materials to enhance the mechanical properties of the final products. While current advances do not yet match the performance of virgin materials, ongoing research continues to optimize these processes, paving the way for the industrialization of more sustainable composites, with applications ranging from lightweight structures to sectors with higher mechanical requirements.

  Abstract
  This chapter addresses the environmental and energy challenges posed by the increasing production of composite materials, particularly those reinforced with carbon and glass [...]

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• Revaluation of recycled reinforcement fibers through innovative textile technologies for developing new thermoplastic composites

  I. Doménech, J. Pascual, F. Fornés, C. Santamaría

  Materiales Compuestos (2023). Vol. 08 - COMUNICACIONES MATCOMP21 (2022) Y MATCOMP23 (2023), (Núm. 2 - Fabricación y Aplicaciones Industriales - Sostenibilidad y Reciclaje.), 40

  
  

  Abstract

  Composite materials, such as those made from carbon and glass fibres, are now considered to be high value-added materials. However, a barrier to their full circularity is the difficulty of their recyclability and the serious environmental problems that these materials pose. Fibres can be recovered using techniques such as pyrolysis and solvolysis and disposed of as chopped fibre at the end of their life cycle. However, their use in industrial applications is limited to injection moulding, anisotropic mats, etc. This work has focused on the research and adaptation of textile technologies for staple fibre processing, such as carding, spinning and weaving, with the aim of obtaining textile intermediates suitable for the production of thermoplastic composites. These technologies must improve the mechanical properties of currently available commercial solutions and adapt to these reinforcing fibres, which are fragile, extremely thin and in some cases electrically conductive. This research has resulted in the production of intermediate textile products such as hybrid yarns (rCF-PA6 and rAramid-PA6), and nonwovens (rCF-PA6, rAramid-PA6 y rGF-PA6), both suitable for obtaining mainly thermoplastic composites.

  Abstract
  Composite materials, such as those made from carbon and glass fibres, are now considered to be high value-added materials. However, a barrier to their full circularity is [...]

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