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Time Dependent Structure and Property Evolution in Fibres during Continuous Carbon Fibre Manufacturing

Here we report on how residence time influences the evolution of the structure and properties through each stage of the carbon fibre manufacturing process. The chemical structural transformations and density variations in stabilized fibres were monitored by Fourier Transform Infrared Spectroscopy an...

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Autores principales: Nunna, Srinivas, Maghe, Maxime, Rana, Rohit, Varley, Russell J., Knorr, Daniel B., Sands, James M., Creighton, Claudia, Henderson, Luke C., Naebe, Minoo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6479708/
https://www.ncbi.nlm.nih.gov/pubmed/30939775
http://dx.doi.org/10.3390/ma12071069
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author Nunna, Srinivas
Maghe, Maxime
Rana, Rohit
Varley, Russell J.
Knorr, Daniel B.
Sands, James M.
Creighton, Claudia
Henderson, Luke C.
Naebe, Minoo
author_facet Nunna, Srinivas
Maghe, Maxime
Rana, Rohit
Varley, Russell J.
Knorr, Daniel B.
Sands, James M.
Creighton, Claudia
Henderson, Luke C.
Naebe, Minoo
author_sort Nunna, Srinivas
collection PubMed
description Here we report on how residence time influences the evolution of the structure and properties through each stage of the carbon fibre manufacturing process. The chemical structural transformations and density variations in stabilized fibres were monitored by Fourier Transform Infrared Spectroscopy and density column studies. The microstructural evolution and property variation in subsequent carbon fibres were studied by X-ray diffraction and monofilament tensile testing methods, which indicated that the fibres thermally stabilized at longer residence times showed higher degrees of structural conversion and attained higher densities. Overall, the density of stabilized fibres was maintained in the optimal range of 1.33 to 1.37 g/cm(3). Interestingly, carbon fibres manufactured from higher density stabilized fibres possessed lower apparent crystallite size (1.599 nm). Moreover, the tensile strength of carbon fibres obtained from stabilized fibres at the high end of the observed range (density: 1.37 g/cm(3)) was at least 20% higher than the carbon fibres manufactured from low density (1.33 g/cm(3)) stabilized fibres. Conversely, the tensile modulus of carbon fibres produced from low density stabilized fibres was at least 17 GPa higher than those from high density stabilized fibres. Finally, it was shown that there is potential to customize the required properties of resultant carbon fibres suiting specific applications via careful control of residence time during the stabilization stage.
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spelling pubmed-64797082019-04-29 Time Dependent Structure and Property Evolution in Fibres during Continuous Carbon Fibre Manufacturing Nunna, Srinivas Maghe, Maxime Rana, Rohit Varley, Russell J. Knorr, Daniel B. Sands, James M. Creighton, Claudia Henderson, Luke C. Naebe, Minoo Materials (Basel) Article Here we report on how residence time influences the evolution of the structure and properties through each stage of the carbon fibre manufacturing process. The chemical structural transformations and density variations in stabilized fibres were monitored by Fourier Transform Infrared Spectroscopy and density column studies. The microstructural evolution and property variation in subsequent carbon fibres were studied by X-ray diffraction and monofilament tensile testing methods, which indicated that the fibres thermally stabilized at longer residence times showed higher degrees of structural conversion and attained higher densities. Overall, the density of stabilized fibres was maintained in the optimal range of 1.33 to 1.37 g/cm(3). Interestingly, carbon fibres manufactured from higher density stabilized fibres possessed lower apparent crystallite size (1.599 nm). Moreover, the tensile strength of carbon fibres obtained from stabilized fibres at the high end of the observed range (density: 1.37 g/cm(3)) was at least 20% higher than the carbon fibres manufactured from low density (1.33 g/cm(3)) stabilized fibres. Conversely, the tensile modulus of carbon fibres produced from low density stabilized fibres was at least 17 GPa higher than those from high density stabilized fibres. Finally, it was shown that there is potential to customize the required properties of resultant carbon fibres suiting specific applications via careful control of residence time during the stabilization stage. MDPI 2019-04-01 /pmc/articles/PMC6479708/ /pubmed/30939775 http://dx.doi.org/10.3390/ma12071069 Text en © 2019 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
Nunna, Srinivas
Maghe, Maxime
Rana, Rohit
Varley, Russell J.
Knorr, Daniel B.
Sands, James M.
Creighton, Claudia
Henderson, Luke C.
Naebe, Minoo
Time Dependent Structure and Property Evolution in Fibres during Continuous Carbon Fibre Manufacturing
title Time Dependent Structure and Property Evolution in Fibres during Continuous Carbon Fibre Manufacturing
title_full Time Dependent Structure and Property Evolution in Fibres during Continuous Carbon Fibre Manufacturing
title_fullStr Time Dependent Structure and Property Evolution in Fibres during Continuous Carbon Fibre Manufacturing
title_full_unstemmed Time Dependent Structure and Property Evolution in Fibres during Continuous Carbon Fibre Manufacturing
title_short Time Dependent Structure and Property Evolution in Fibres during Continuous Carbon Fibre Manufacturing
title_sort time dependent structure and property evolution in fibres during continuous carbon fibre manufacturing
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6479708/
https://www.ncbi.nlm.nih.gov/pubmed/30939775
http://dx.doi.org/10.3390/ma12071069
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