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Preparation and Mechanical Properties of UV-Curable Epoxy Acrylate/Modified Aramid Nanofiber Nanocomposite Films

In order to enhance the mechanical properties of UV-curable epoxy acrylate (EA)-based coatings, 3-(trimethoxysilyl)propyl methacrylate modified aramid nanofibers (T-ANFs) were synthesized and used as nanofillers to prepare EA/T-ANF nanocomposite films. The morphology of T-ANFs was characterized by t...

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Autores principales: Wang, Ying, Sun, Zhenxing, Yin, Peixu, Qu, Rongjun, Zhang, Ying, Sun, Changmei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10674518/
https://www.ncbi.nlm.nih.gov/pubmed/37999314
http://dx.doi.org/10.3390/nano13222960
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author Wang, Ying
Sun, Zhenxing
Yin, Peixu
Qu, Rongjun
Zhang, Ying
Sun, Changmei
author_facet Wang, Ying
Sun, Zhenxing
Yin, Peixu
Qu, Rongjun
Zhang, Ying
Sun, Changmei
author_sort Wang, Ying
collection PubMed
description In order to enhance the mechanical properties of UV-curable epoxy acrylate (EA)-based coatings, 3-(trimethoxysilyl)propyl methacrylate modified aramid nanofibers (T-ANFs) were synthesized and used as nanofillers to prepare EA/T-ANF nanocomposite films. The morphology of T-ANFs was characterized by transmission electron microscopy. The chemical structure of T-ANFs was analyzed via infrared spectroscopy, confirming successful grafting of methyl methacryloyloxy groups onto the surface of aramid nanofibers (ANFs). Real-time infrared spectroscopy was employed to investigate the influence of ANFs and T-ANFs on the photopolymerization kinetics of the EA film. The results revealed that the addition of ANFs and T-ANFs led to a decrease in the photopolymerization rate during the initial stage but had little impact on the final double bond conversion, with all samples exhibiting a conversion rate of over 83%. The incorporation of ANFs improved the tensile strength of the films while significantly reducing their Young’s modulus. In contrast, the addition of T-ANFs led to a substantial increase in both tensile stress and Young’s modulus of the films. For instance, the tensile strength and Young’s modulus of the 0.1 wt% of T-ANF film increased by 52.7% and 41.6%, respectively, compared to the pure EA film. To further study the dispersion morphology and reinforcement mechanism, the cross-sectional morphology of the films was characterized by scanning electron microscopy.
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spelling pubmed-106745182023-11-16 Preparation and Mechanical Properties of UV-Curable Epoxy Acrylate/Modified Aramid Nanofiber Nanocomposite Films Wang, Ying Sun, Zhenxing Yin, Peixu Qu, Rongjun Zhang, Ying Sun, Changmei Nanomaterials (Basel) Communication In order to enhance the mechanical properties of UV-curable epoxy acrylate (EA)-based coatings, 3-(trimethoxysilyl)propyl methacrylate modified aramid nanofibers (T-ANFs) were synthesized and used as nanofillers to prepare EA/T-ANF nanocomposite films. The morphology of T-ANFs was characterized by transmission electron microscopy. The chemical structure of T-ANFs was analyzed via infrared spectroscopy, confirming successful grafting of methyl methacryloyloxy groups onto the surface of aramid nanofibers (ANFs). Real-time infrared spectroscopy was employed to investigate the influence of ANFs and T-ANFs on the photopolymerization kinetics of the EA film. The results revealed that the addition of ANFs and T-ANFs led to a decrease in the photopolymerization rate during the initial stage but had little impact on the final double bond conversion, with all samples exhibiting a conversion rate of over 83%. The incorporation of ANFs improved the tensile strength of the films while significantly reducing their Young’s modulus. In contrast, the addition of T-ANFs led to a substantial increase in both tensile stress and Young’s modulus of the films. For instance, the tensile strength and Young’s modulus of the 0.1 wt% of T-ANF film increased by 52.7% and 41.6%, respectively, compared to the pure EA film. To further study the dispersion morphology and reinforcement mechanism, the cross-sectional morphology of the films was characterized by scanning electron microscopy. MDPI 2023-11-16 /pmc/articles/PMC10674518/ /pubmed/37999314 http://dx.doi.org/10.3390/nano13222960 Text en © 2023 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 Communication
Wang, Ying
Sun, Zhenxing
Yin, Peixu
Qu, Rongjun
Zhang, Ying
Sun, Changmei
Preparation and Mechanical Properties of UV-Curable Epoxy Acrylate/Modified Aramid Nanofiber Nanocomposite Films
title Preparation and Mechanical Properties of UV-Curable Epoxy Acrylate/Modified Aramid Nanofiber Nanocomposite Films
title_full Preparation and Mechanical Properties of UV-Curable Epoxy Acrylate/Modified Aramid Nanofiber Nanocomposite Films
title_fullStr Preparation and Mechanical Properties of UV-Curable Epoxy Acrylate/Modified Aramid Nanofiber Nanocomposite Films
title_full_unstemmed Preparation and Mechanical Properties of UV-Curable Epoxy Acrylate/Modified Aramid Nanofiber Nanocomposite Films
title_short Preparation and Mechanical Properties of UV-Curable Epoxy Acrylate/Modified Aramid Nanofiber Nanocomposite Films
title_sort preparation and mechanical properties of uv-curable epoxy acrylate/modified aramid nanofiber nanocomposite films
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10674518/
https://www.ncbi.nlm.nih.gov/pubmed/37999314
http://dx.doi.org/10.3390/nano13222960
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