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One-Pot Sol–Gel Synthesis of Highly Insulative Hybrid P(AAm-CO-AAc)-Silica Aerogels with Improved Mechanical and Thermal Properties
Silica aerogels and their derivatives have outstanding thermal properties with exceptional values in the thermal insulation industry. However, their brittle nature restricts their large-scale commercialization. Thus, enhancing their mechanical strength without affecting their thermal insulating prop...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10454204/ https://www.ncbi.nlm.nih.gov/pubmed/37623106 http://dx.doi.org/10.3390/gels9080651 |
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author | Ransing, Akshay A. Dhavale, Rushikesh P. Parale, Vinayak G. Bangi, Uzma K. H. Choi, Haryeong Lee, Wonjun Kim, Jiseung Wang, Qi Phadtare, Varsha D. Kim, Taehee Jung, Wook Ki Park, Hyung-Ho |
author_facet | Ransing, Akshay A. Dhavale, Rushikesh P. Parale, Vinayak G. Bangi, Uzma K. H. Choi, Haryeong Lee, Wonjun Kim, Jiseung Wang, Qi Phadtare, Varsha D. Kim, Taehee Jung, Wook Ki Park, Hyung-Ho |
author_sort | Ransing, Akshay A. |
collection | PubMed |
description | Silica aerogels and their derivatives have outstanding thermal properties with exceptional values in the thermal insulation industry. However, their brittle nature restricts their large-scale commercialization. Thus, enhancing their mechanical strength without affecting their thermal insulating properties is essential. Therefore, for the first time, highly thermally stable poly(acrylamide-co-acrylic acid) partial sodium salt is used as a reinforcing polymer to synthesize hybrid P(AAm-CO-AAc)-silica aerogels via epoxy ring-opening polymerization in the present study. Functional groups in P(AAm-CO-AAc) partial sodium salts, such as CONH(2) and COOH, acted as nucleophiles for the epoxy ring-opening reaction with (3-glycidyloxypropyl)trimethoxysilane, which resulted in a seven-fold enhancement in mechanical strength compared to that of pristine silica aerogel while maintaining thermal conductivity at less than 30.6 mW/mK and porosity of more than 93.68%. Moreover, the hybrid P(AAm-CO-AAc)-silica aerogel demonstrated improved thermal stability up to 343 °C, owing to the synergetic effect between the P(AAm-CO-AAc) and the silica aerogel, corresponding to the thermal stability and strong covalent bonding among them. These excellent results illustrate that this new synthetic approach for producing hybrid P(AAm-CO-AAc)-silica aerogels is useful for enhancing the mechanical strength of pristine silica aerogel without impairing its thermal insulating property and shows potential as an industrial heat insulation material. |
format | Online Article Text |
id | pubmed-10454204 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-104542042023-08-26 One-Pot Sol–Gel Synthesis of Highly Insulative Hybrid P(AAm-CO-AAc)-Silica Aerogels with Improved Mechanical and Thermal Properties Ransing, Akshay A. Dhavale, Rushikesh P. Parale, Vinayak G. Bangi, Uzma K. H. Choi, Haryeong Lee, Wonjun Kim, Jiseung Wang, Qi Phadtare, Varsha D. Kim, Taehee Jung, Wook Ki Park, Hyung-Ho Gels Article Silica aerogels and their derivatives have outstanding thermal properties with exceptional values in the thermal insulation industry. However, their brittle nature restricts their large-scale commercialization. Thus, enhancing their mechanical strength without affecting their thermal insulating properties is essential. Therefore, for the first time, highly thermally stable poly(acrylamide-co-acrylic acid) partial sodium salt is used as a reinforcing polymer to synthesize hybrid P(AAm-CO-AAc)-silica aerogels via epoxy ring-opening polymerization in the present study. Functional groups in P(AAm-CO-AAc) partial sodium salts, such as CONH(2) and COOH, acted as nucleophiles for the epoxy ring-opening reaction with (3-glycidyloxypropyl)trimethoxysilane, which resulted in a seven-fold enhancement in mechanical strength compared to that of pristine silica aerogel while maintaining thermal conductivity at less than 30.6 mW/mK and porosity of more than 93.68%. Moreover, the hybrid P(AAm-CO-AAc)-silica aerogel demonstrated improved thermal stability up to 343 °C, owing to the synergetic effect between the P(AAm-CO-AAc) and the silica aerogel, corresponding to the thermal stability and strong covalent bonding among them. These excellent results illustrate that this new synthetic approach for producing hybrid P(AAm-CO-AAc)-silica aerogels is useful for enhancing the mechanical strength of pristine silica aerogel without impairing its thermal insulating property and shows potential as an industrial heat insulation material. MDPI 2023-08-12 /pmc/articles/PMC10454204/ /pubmed/37623106 http://dx.doi.org/10.3390/gels9080651 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 | Article Ransing, Akshay A. Dhavale, Rushikesh P. Parale, Vinayak G. Bangi, Uzma K. H. Choi, Haryeong Lee, Wonjun Kim, Jiseung Wang, Qi Phadtare, Varsha D. Kim, Taehee Jung, Wook Ki Park, Hyung-Ho One-Pot Sol–Gel Synthesis of Highly Insulative Hybrid P(AAm-CO-AAc)-Silica Aerogels with Improved Mechanical and Thermal Properties |
title | One-Pot Sol–Gel Synthesis of Highly Insulative Hybrid P(AAm-CO-AAc)-Silica Aerogels with Improved Mechanical and Thermal Properties |
title_full | One-Pot Sol–Gel Synthesis of Highly Insulative Hybrid P(AAm-CO-AAc)-Silica Aerogels with Improved Mechanical and Thermal Properties |
title_fullStr | One-Pot Sol–Gel Synthesis of Highly Insulative Hybrid P(AAm-CO-AAc)-Silica Aerogels with Improved Mechanical and Thermal Properties |
title_full_unstemmed | One-Pot Sol–Gel Synthesis of Highly Insulative Hybrid P(AAm-CO-AAc)-Silica Aerogels with Improved Mechanical and Thermal Properties |
title_short | One-Pot Sol–Gel Synthesis of Highly Insulative Hybrid P(AAm-CO-AAc)-Silica Aerogels with Improved Mechanical and Thermal Properties |
title_sort | one-pot sol–gel synthesis of highly insulative hybrid p(aam-co-aac)-silica aerogels with improved mechanical and thermal properties |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10454204/ https://www.ncbi.nlm.nih.gov/pubmed/37623106 http://dx.doi.org/10.3390/gels9080651 |
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