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Hierarchical Flax Fibers by ZnO Electroless Deposition: Tailoring the Natural Fibers/Synthetic Matrix Interphase in Composites

Hierarchical functionalization of flax fibers with ZnO nanostructures was achieved by electroless deposition to improve the interfacial adhesion between the natural fibers and synthetic matrix in composite materials. The structural, morphological, thermal and wetting properties of the pristine and Z...

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Autores principales: Preda, Nicoleta, Costas, Andreea, Sbardella, Francesca, Seghini, Maria Carolina, Touchard, Fabienne, Chocinski-Arnault, Laurence, Tirillò, Jacopo, Sarasini, Fabrizio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9415689/
https://www.ncbi.nlm.nih.gov/pubmed/36014630
http://dx.doi.org/10.3390/nano12162765
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author Preda, Nicoleta
Costas, Andreea
Sbardella, Francesca
Seghini, Maria Carolina
Touchard, Fabienne
Chocinski-Arnault, Laurence
Tirillò, Jacopo
Sarasini, Fabrizio
author_facet Preda, Nicoleta
Costas, Andreea
Sbardella, Francesca
Seghini, Maria Carolina
Touchard, Fabienne
Chocinski-Arnault, Laurence
Tirillò, Jacopo
Sarasini, Fabrizio
author_sort Preda, Nicoleta
collection PubMed
description Hierarchical functionalization of flax fibers with ZnO nanostructures was achieved by electroless deposition to improve the interfacial adhesion between the natural fibers and synthetic matrix in composite materials. The structural, morphological, thermal and wetting properties of the pristine and ZnO-coated flax fibers were investigated. Thus, the ZnO-coated flax fabric discloses an apparent contact angle of ~140° immediately after the placement of a water droplet on its surface. An assessment of the interfacial adhesion at the yarn scale was also carried out on the flax yarns coated with ZnO nanostructures. Thus, after the ZnO functionalization process, no significant degradation of the tensile properties of the flax yarns occurs. Furthermore, the single yarn fragmentation tests revealed a notable increase in the interfacial adhesion with an epoxy matrix, reductions of 36% and 9% in debonding and critical length values being measured compared to those of the pristine flax yarns, respectively. The analysis of the fracture morphology by scanning electron microscopy and X-ray microtomography highlighted the positive role of ZnO nanostructures in restraining debonding phenomena at the flax fibers/epoxy resin matrix interphase.
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spelling pubmed-94156892022-08-27 Hierarchical Flax Fibers by ZnO Electroless Deposition: Tailoring the Natural Fibers/Synthetic Matrix Interphase in Composites Preda, Nicoleta Costas, Andreea Sbardella, Francesca Seghini, Maria Carolina Touchard, Fabienne Chocinski-Arnault, Laurence Tirillò, Jacopo Sarasini, Fabrizio Nanomaterials (Basel) Article Hierarchical functionalization of flax fibers with ZnO nanostructures was achieved by electroless deposition to improve the interfacial adhesion between the natural fibers and synthetic matrix in composite materials. The structural, morphological, thermal and wetting properties of the pristine and ZnO-coated flax fibers were investigated. Thus, the ZnO-coated flax fabric discloses an apparent contact angle of ~140° immediately after the placement of a water droplet on its surface. An assessment of the interfacial adhesion at the yarn scale was also carried out on the flax yarns coated with ZnO nanostructures. Thus, after the ZnO functionalization process, no significant degradation of the tensile properties of the flax yarns occurs. Furthermore, the single yarn fragmentation tests revealed a notable increase in the interfacial adhesion with an epoxy matrix, reductions of 36% and 9% in debonding and critical length values being measured compared to those of the pristine flax yarns, respectively. The analysis of the fracture morphology by scanning electron microscopy and X-ray microtomography highlighted the positive role of ZnO nanostructures in restraining debonding phenomena at the flax fibers/epoxy resin matrix interphase. MDPI 2022-08-12 /pmc/articles/PMC9415689/ /pubmed/36014630 http://dx.doi.org/10.3390/nano12162765 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Preda, Nicoleta
Costas, Andreea
Sbardella, Francesca
Seghini, Maria Carolina
Touchard, Fabienne
Chocinski-Arnault, Laurence
Tirillò, Jacopo
Sarasini, Fabrizio
Hierarchical Flax Fibers by ZnO Electroless Deposition: Tailoring the Natural Fibers/Synthetic Matrix Interphase in Composites
title Hierarchical Flax Fibers by ZnO Electroless Deposition: Tailoring the Natural Fibers/Synthetic Matrix Interphase in Composites
title_full Hierarchical Flax Fibers by ZnO Electroless Deposition: Tailoring the Natural Fibers/Synthetic Matrix Interphase in Composites
title_fullStr Hierarchical Flax Fibers by ZnO Electroless Deposition: Tailoring the Natural Fibers/Synthetic Matrix Interphase in Composites
title_full_unstemmed Hierarchical Flax Fibers by ZnO Electroless Deposition: Tailoring the Natural Fibers/Synthetic Matrix Interphase in Composites
title_short Hierarchical Flax Fibers by ZnO Electroless Deposition: Tailoring the Natural Fibers/Synthetic Matrix Interphase in Composites
title_sort hierarchical flax fibers by zno electroless deposition: tailoring the natural fibers/synthetic matrix interphase in composites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9415689/
https://www.ncbi.nlm.nih.gov/pubmed/36014630
http://dx.doi.org/10.3390/nano12162765
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