polito.it
Politecnico di Torino (logo)

Materiali compositi strutturali con rinforzo in nuova fibra di cellulosa = Structural composite material with novel cellulose fibre reinforcement

Mauro Antonio Murrone

Materiali compositi strutturali con rinforzo in nuova fibra di cellulosa = Structural composite material with novel cellulose fibre reinforcement.

Rel. Marco Gherlone, Malin Akermo. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Aerospaziale, 2024

[img]
Preview
PDF (Tesi_di_laurea) - Tesi
Licenza: Creative Commons Attribution Non-commercial No Derivatives.

Download (48MB) | Preview
Abstract:

In recent decades, the necessity to find a completely environmentally friendly substitute for synthetic fibres in composite applications has intensified, driven by the objective of reducing emissions in both the production and disposal of composite components. Natural fibres present a potential solution, yet they have some issues such as the inhomogeneous quality of their cross-section and mechanical properties, depending on different aspects, for example, growing conditions and the amount of intake water. Another potential solution is organic man-made fibres, such as fibre made from Cellulose NanoFibrils, which do not present the previously cited drawbacks. This thesis investigates and compares the potentials of organic fibres, either man-made or natural, in composite reinforcement applications. To accomplish this, organic fibres are integrated into composite plates using two distinct thermoset matrices, epoxy and vinyl ester, respectively via methods of hot pressing and vacuum infusion. Subsequently, the produced composite plates undergo tensile testing, with the results being compared with the theoretical values. Furthermore, microscopy is employed to examine the adhesion at the interface between reinforcement and matrix. The findings indicate that man-made fibres from Cellulose NanoFibrils bind more efficiently with thermoset matrices compared to flax fibres, rendering them more adept as reinforcement materials for thermoset composites.

Relatori: Marco Gherlone, Malin Akermo
Anno accademico: 2023/24
Tipo di pubblicazione: Elettronica
Numero di pagine: 85
Soggetti:
Corso di laurea: Corso di laurea magistrale in Ingegneria Aerospaziale
Classe di laurea: Nuovo ordinamento > Laurea magistrale > LM-20 - INGEGNERIA AEROSPAZIALE E ASTRONAUTICA
Ente in cotutela: KUNGLIGA TEKNISKA HOGSKOLAN (ROYAL INSTITUTE OF TECHNOLOGY) - SCI (SVEZIA)
Aziende collaboratrici: KTH Royal Institute of Technology
URI: http://webthesis.biblio.polito.it/id/eprint/31203
Modifica (riservato agli operatori) Modifica (riservato agli operatori)