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Facile synthesis of super-thermal insulating polyimide aerogel-like films

Thermal superinsulation materials play a key role in reducing energy consumption. In this article, flexible polyimide aerogel-like films are developed by a facile non-solvent-induced phase separation combined with ambient drying method. The pore structure and insulation properties are well controlle...

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Autores principales: Ma, Jing, Lü, Yonghui, Wen, Hua, Zhang, Yupei, Wei, Wei, Qin, Guotong, Zhao, Yong, Jiang, Lei, Liu, Lihong, Liu, Shaomin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9732405/
https://www.ncbi.nlm.nih.gov/pubmed/36505928
http://dx.doi.org/10.1016/j.isci.2022.105641
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author Ma, Jing
Lü, Yonghui
Wen, Hua
Zhang, Yupei
Wei, Wei
Qin, Guotong
Zhao, Yong
Jiang, Lei
Liu, Lihong
Liu, Shaomin
author_facet Ma, Jing
Lü, Yonghui
Wen, Hua
Zhang, Yupei
Wei, Wei
Qin, Guotong
Zhao, Yong
Jiang, Lei
Liu, Lihong
Liu, Shaomin
author_sort Ma, Jing
collection PubMed
description Thermal superinsulation materials play a key role in reducing energy consumption. In this article, flexible polyimide aerogel-like films are developed by a facile non-solvent-induced phase separation combined with ambient drying method. The pore structure and insulation properties are well controlled by changing the compositions of the coagulation bath. Polyimide films with macro-nano hierarchical pore structure and uniform nanopores are prepared by adjusting the content of water and alcohol as the non-solvent. The relationship between the insulation performance and textured structure of polyimide was studied. After optimization, the produced film achieved a low thermal conductivity of 0.019 W⋅m(−1)·K(−1) but good tensile strength of 89.6 MPa, compared favorably with literature results. Hence, this article demonstrates that application of the facile phase inversion method to prepare porous polymers can be expanded from desalination or gas separation fields to insulation for energy-saving purposes.
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spelling pubmed-97324052022-12-10 Facile synthesis of super-thermal insulating polyimide aerogel-like films Ma, Jing Lü, Yonghui Wen, Hua Zhang, Yupei Wei, Wei Qin, Guotong Zhao, Yong Jiang, Lei Liu, Lihong Liu, Shaomin iScience Article Thermal superinsulation materials play a key role in reducing energy consumption. In this article, flexible polyimide aerogel-like films are developed by a facile non-solvent-induced phase separation combined with ambient drying method. The pore structure and insulation properties are well controlled by changing the compositions of the coagulation bath. Polyimide films with macro-nano hierarchical pore structure and uniform nanopores are prepared by adjusting the content of water and alcohol as the non-solvent. The relationship between the insulation performance and textured structure of polyimide was studied. After optimization, the produced film achieved a low thermal conductivity of 0.019 W⋅m(−1)·K(−1) but good tensile strength of 89.6 MPa, compared favorably with literature results. Hence, this article demonstrates that application of the facile phase inversion method to prepare porous polymers can be expanded from desalination or gas separation fields to insulation for energy-saving purposes. Elsevier 2022-11-21 /pmc/articles/PMC9732405/ /pubmed/36505928 http://dx.doi.org/10.1016/j.isci.2022.105641 Text en © 2022 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Ma, Jing
Lü, Yonghui
Wen, Hua
Zhang, Yupei
Wei, Wei
Qin, Guotong
Zhao, Yong
Jiang, Lei
Liu, Lihong
Liu, Shaomin
Facile synthesis of super-thermal insulating polyimide aerogel-like films
title Facile synthesis of super-thermal insulating polyimide aerogel-like films
title_full Facile synthesis of super-thermal insulating polyimide aerogel-like films
title_fullStr Facile synthesis of super-thermal insulating polyimide aerogel-like films
title_full_unstemmed Facile synthesis of super-thermal insulating polyimide aerogel-like films
title_short Facile synthesis of super-thermal insulating polyimide aerogel-like films
title_sort facile synthesis of super-thermal insulating polyimide aerogel-like films
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9732405/
https://www.ncbi.nlm.nih.gov/pubmed/36505928
http://dx.doi.org/10.1016/j.isci.2022.105641
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