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Mechanical Characterization on Solvent Treated Cellulose Nanofiber Preforms Using Solution Dipping–Hot Press Technique

Nanocomposites films were prepared by impregnating the solvent treated cellulose nanofiber (SCNF) preforms with epoxy resin using a solution dipping–hot press technique. We investigated the effect of SCNF preforms porosity on the amount of impregnated resin and tensile properties of the correspondin...

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Autores principales: Thirunavukarasu, Devendran, Shimamura, Yoshinobu, Tohgo, Keiichiro, Fujii, Tomoyuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7712792/
https://www.ncbi.nlm.nih.gov/pubmed/32365680
http://dx.doi.org/10.3390/nano10050841
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author Thirunavukarasu, Devendran
Shimamura, Yoshinobu
Tohgo, Keiichiro
Fujii, Tomoyuki
author_facet Thirunavukarasu, Devendran
Shimamura, Yoshinobu
Tohgo, Keiichiro
Fujii, Tomoyuki
author_sort Thirunavukarasu, Devendran
collection PubMed
description Nanocomposites films were prepared by impregnating the solvent treated cellulose nanofiber (SCNF) preforms with epoxy resin using a solution dipping–hot press technique. We investigated the effect of SCNF preforms porosity on the amount of impregnated resin and tensile properties of the corresponding nanocomposites films. The porosity of the CNF preforms was successfully controlled using the solvent exchange with varying CNF concentration. The impregnated resin amount increased as the SCNF preforms porosity increased, respectively. Resulting nanocomposite films showed higher mechanical properties than that of the SCNF preforms. The best mechanical properties of composites were found with the combination of 1 wt % SCNF preform and low viscosity epoxy, exhibiting tensile strength and Young’s modulus of 77 MPa and 4.8 GPa, respectively. The composite also showed high fiber volume fraction of more than 60%.
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spelling pubmed-77127922020-12-04 Mechanical Characterization on Solvent Treated Cellulose Nanofiber Preforms Using Solution Dipping–Hot Press Technique Thirunavukarasu, Devendran Shimamura, Yoshinobu Tohgo, Keiichiro Fujii, Tomoyuki Nanomaterials (Basel) Article Nanocomposites films were prepared by impregnating the solvent treated cellulose nanofiber (SCNF) preforms with epoxy resin using a solution dipping–hot press technique. We investigated the effect of SCNF preforms porosity on the amount of impregnated resin and tensile properties of the corresponding nanocomposites films. The porosity of the CNF preforms was successfully controlled using the solvent exchange with varying CNF concentration. The impregnated resin amount increased as the SCNF preforms porosity increased, respectively. Resulting nanocomposite films showed higher mechanical properties than that of the SCNF preforms. The best mechanical properties of composites were found with the combination of 1 wt % SCNF preform and low viscosity epoxy, exhibiting tensile strength and Young’s modulus of 77 MPa and 4.8 GPa, respectively. The composite also showed high fiber volume fraction of more than 60%. MDPI 2020-04-29 /pmc/articles/PMC7712792/ /pubmed/32365680 http://dx.doi.org/10.3390/nano10050841 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Thirunavukarasu, Devendran
Shimamura, Yoshinobu
Tohgo, Keiichiro
Fujii, Tomoyuki
Mechanical Characterization on Solvent Treated Cellulose Nanofiber Preforms Using Solution Dipping–Hot Press Technique
title Mechanical Characterization on Solvent Treated Cellulose Nanofiber Preforms Using Solution Dipping–Hot Press Technique
title_full Mechanical Characterization on Solvent Treated Cellulose Nanofiber Preforms Using Solution Dipping–Hot Press Technique
title_fullStr Mechanical Characterization on Solvent Treated Cellulose Nanofiber Preforms Using Solution Dipping–Hot Press Technique
title_full_unstemmed Mechanical Characterization on Solvent Treated Cellulose Nanofiber Preforms Using Solution Dipping–Hot Press Technique
title_short Mechanical Characterization on Solvent Treated Cellulose Nanofiber Preforms Using Solution Dipping–Hot Press Technique
title_sort mechanical characterization on solvent treated cellulose nanofiber preforms using solution dipping–hot press technique
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7712792/
https://www.ncbi.nlm.nih.gov/pubmed/32365680
http://dx.doi.org/10.3390/nano10050841
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