The transportation sector is striving to meet the more severe European legislation which encourages all industrial fields to embrace more eco-friendly policies by exploiting constituents from renewable resources. In this framework, the present work assessed the potential of a bio-based, low molecular weight PA11 matrix reinforced with flax and intraply flax/basalt hybrid fabrics. To this aim, both quasi-static and impact performance were addressed through three-point bending and low-velocity impact tests, respectively. For hybrid composites, the effect of stacking sequence, i.e., [0/0] and [0/90], and fiber orientation were considered, while the effect of temperature, i.e., -40 °C, room temperature and +45 °C, was investigated for laminates' impact response. The mechanical experimental campaign was supported by thermal and morphological analyses. The results disclosed an improved processability of the low molecular weight PA11, which ensured a manufacturing temperature of 200 °C, which is fundamental to minimize flax fibers' thermal degradation. Both quasi-static and impact properties demonstrated that hybridization is a good solution for obtaining good mechanical properties while preserving laminates' lightness and biodegradability. The [0/90] configuration proved to be the best solution, providing satisfying flexural performance, with an increase between 62% and 83% in stiffness and between 19.6% and 37.6% in strength compared to flax-based laminates, and the best impact performance, with a reduction in permanent indentation and back crack extent.

Low molecular weight bio-polyamide 11 composites reinforced with flax and intraply flax/basalt hybrid fabrics for eco-friendlier transportation components / Sergi, Claudia; Vitiello, Libera; Dang, Patrick; Russo, Pietro; Tirillo', Jacopo; Sarasini, Fabrizio. - In: POLYMERS. - ISSN 2073-4360. - 14:22(2022). [10.3390/polym14225053]

Low molecular weight bio-polyamide 11 composites reinforced with flax and intraply flax/basalt hybrid fabrics for eco-friendlier transportation components

Sergi, Claudia
;
Tirillo', Jacopo;Sarasini, Fabrizio
2022

Abstract

The transportation sector is striving to meet the more severe European legislation which encourages all industrial fields to embrace more eco-friendly policies by exploiting constituents from renewable resources. In this framework, the present work assessed the potential of a bio-based, low molecular weight PA11 matrix reinforced with flax and intraply flax/basalt hybrid fabrics. To this aim, both quasi-static and impact performance were addressed through three-point bending and low-velocity impact tests, respectively. For hybrid composites, the effect of stacking sequence, i.e., [0/0] and [0/90], and fiber orientation were considered, while the effect of temperature, i.e., -40 °C, room temperature and +45 °C, was investigated for laminates' impact response. The mechanical experimental campaign was supported by thermal and morphological analyses. The results disclosed an improved processability of the low molecular weight PA11, which ensured a manufacturing temperature of 200 °C, which is fundamental to minimize flax fibers' thermal degradation. Both quasi-static and impact properties demonstrated that hybridization is a good solution for obtaining good mechanical properties while preserving laminates' lightness and biodegradability. The [0/90] configuration proved to be the best solution, providing satisfying flexural performance, with an increase between 62% and 83% in stiffness and between 19.6% and 37.6% in strength compared to flax-based laminates, and the best impact performance, with a reduction in permanent indentation and back crack extent.
2022
basalt; flax; hybrid composites; low-velocity impact; polyamide 11; polymer matrix composites; temperature
01 Pubblicazione su rivista::01a Articolo in rivista
Low molecular weight bio-polyamide 11 composites reinforced with flax and intraply flax/basalt hybrid fabrics for eco-friendlier transportation components / Sergi, Claudia; Vitiello, Libera; Dang, Patrick; Russo, Pietro; Tirillo', Jacopo; Sarasini, Fabrizio. - In: POLYMERS. - ISSN 2073-4360. - 14:22(2022). [10.3390/polym14225053]
File allegati a questo prodotto
File Dimensione Formato  
Sergi_Low-molecular-weight_2022.pdf

accesso aperto

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Creative commons
Dimensione 8.1 MB
Formato Adobe PDF
8.1 MB Adobe PDF

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1661357
Citazioni
  • ???jsp.display-item.citation.pmc??? 2
  • Scopus 6
  • ???jsp.display-item.citation.isi??? 6
social impact