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Influence of Molecular Weight on Thermal and Mechanical Properties of Carbon-Fiber-Reinforced Plastics Based on Thermoplastic Partially Crystalline Polyimide

For the first time, a study of the influence of the molecular weight of the thermoplastic partially crystalline polyimide R-BAPB on the thermophysical and mechanical properties of carbon plastics was presented. The molecular weight of polyimide was determined using the method of light scattering and...

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Autores principales: Vaganov, Gleb, Simonova, Maria, Romasheva, Margarita, Didenko, Andrey, Popova, Elena, Ivan’kova, Elena, Kamalov, Almaz, Elokhovskiy, Vladimir, Vaganov, Vyacheslav, Filippov, Alexander, Yudin, Vladimir
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10346653/
https://www.ncbi.nlm.nih.gov/pubmed/37447567
http://dx.doi.org/10.3390/polym15132922
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author Vaganov, Gleb
Simonova, Maria
Romasheva, Margarita
Didenko, Andrey
Popova, Elena
Ivan’kova, Elena
Kamalov, Almaz
Elokhovskiy, Vladimir
Vaganov, Vyacheslav
Filippov, Alexander
Yudin, Vladimir
author_facet Vaganov, Gleb
Simonova, Maria
Romasheva, Margarita
Didenko, Andrey
Popova, Elena
Ivan’kova, Elena
Kamalov, Almaz
Elokhovskiy, Vladimir
Vaganov, Vyacheslav
Filippov, Alexander
Yudin, Vladimir
author_sort Vaganov, Gleb
collection PubMed
description For the first time, a study of the influence of the molecular weight of the thermoplastic partially crystalline polyimide R-BAPB on the thermophysical and mechanical properties of carbon plastics was presented. The molecular weight of polyimide was determined using the method of light scattering and the study of the intrinsic viscosity of polyamic acid solutions. To obtain CFRPs, the uniform distribution of polyimide powder on continuous carbon fibers via electrostatic spraying and further hot calendering and pressing were applied. The study of the structure of the obtained carbon plastics via scanning electron microscopy has shown that the growth of the molecular weight of polyimide prevents the impregnation of carbon fiber with the introduced polyimide. Moreover, an increase in the molecular weight of polyimide leads to a rise in glass transition and thermal decomposition temperatures up to 590 °C, while the degree of crystallinity of CFRP falls. Nonetheless, raising the molecular weight from 22,000 to 70,000 g/mol of a binder polymer improves the interlayer fracture toughness G(1C) by more than five times.
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spelling pubmed-103466532023-07-15 Influence of Molecular Weight on Thermal and Mechanical Properties of Carbon-Fiber-Reinforced Plastics Based on Thermoplastic Partially Crystalline Polyimide Vaganov, Gleb Simonova, Maria Romasheva, Margarita Didenko, Andrey Popova, Elena Ivan’kova, Elena Kamalov, Almaz Elokhovskiy, Vladimir Vaganov, Vyacheslav Filippov, Alexander Yudin, Vladimir Polymers (Basel) Article For the first time, a study of the influence of the molecular weight of the thermoplastic partially crystalline polyimide R-BAPB on the thermophysical and mechanical properties of carbon plastics was presented. The molecular weight of polyimide was determined using the method of light scattering and the study of the intrinsic viscosity of polyamic acid solutions. To obtain CFRPs, the uniform distribution of polyimide powder on continuous carbon fibers via electrostatic spraying and further hot calendering and pressing were applied. The study of the structure of the obtained carbon plastics via scanning electron microscopy has shown that the growth of the molecular weight of polyimide prevents the impregnation of carbon fiber with the introduced polyimide. Moreover, an increase in the molecular weight of polyimide leads to a rise in glass transition and thermal decomposition temperatures up to 590 °C, while the degree of crystallinity of CFRP falls. Nonetheless, raising the molecular weight from 22,000 to 70,000 g/mol of a binder polymer improves the interlayer fracture toughness G(1C) by more than five times. MDPI 2023-07-01 /pmc/articles/PMC10346653/ /pubmed/37447567 http://dx.doi.org/10.3390/polym15132922 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
Vaganov, Gleb
Simonova, Maria
Romasheva, Margarita
Didenko, Andrey
Popova, Elena
Ivan’kova, Elena
Kamalov, Almaz
Elokhovskiy, Vladimir
Vaganov, Vyacheslav
Filippov, Alexander
Yudin, Vladimir
Influence of Molecular Weight on Thermal and Mechanical Properties of Carbon-Fiber-Reinforced Plastics Based on Thermoplastic Partially Crystalline Polyimide
title Influence of Molecular Weight on Thermal and Mechanical Properties of Carbon-Fiber-Reinforced Plastics Based on Thermoplastic Partially Crystalline Polyimide
title_full Influence of Molecular Weight on Thermal and Mechanical Properties of Carbon-Fiber-Reinforced Plastics Based on Thermoplastic Partially Crystalline Polyimide
title_fullStr Influence of Molecular Weight on Thermal and Mechanical Properties of Carbon-Fiber-Reinforced Plastics Based on Thermoplastic Partially Crystalline Polyimide
title_full_unstemmed Influence of Molecular Weight on Thermal and Mechanical Properties of Carbon-Fiber-Reinforced Plastics Based on Thermoplastic Partially Crystalline Polyimide
title_short Influence of Molecular Weight on Thermal and Mechanical Properties of Carbon-Fiber-Reinforced Plastics Based on Thermoplastic Partially Crystalline Polyimide
title_sort influence of molecular weight on thermal and mechanical properties of carbon-fiber-reinforced plastics based on thermoplastic partially crystalline polyimide
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10346653/
https://www.ncbi.nlm.nih.gov/pubmed/37447567
http://dx.doi.org/10.3390/polym15132922
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