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Mechano-Chemical Properties of Electron Beam Irradiated Polyetheretherketone

In this study, the mechano-chemical properties of aromatic polymer polyetheretherketone (PEEK) samples, irradiated by high energy electrons at 200 and 400 kGy doses, were investigated by Nanoindentation, Brillouin light scattering spectroscopy and Fourier-transform infrared spectroscopy (FTIR). Irra...

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Autores principales: Almas, Nurlan, Kurbanova, Bayan, Zhakiyev, Nurkhat, Rakhadilov, Baurzhan, Sagdoldina, Zhuldyz, Andybayeva, Gaukhar, Serik, Nurzhan, Alsar, Zhanna, Utegulov, Zhandos, Insepov, Zinetula
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370724/
https://www.ncbi.nlm.nih.gov/pubmed/35956582
http://dx.doi.org/10.3390/polym14153067
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author Almas, Nurlan
Kurbanova, Bayan
Zhakiyev, Nurkhat
Rakhadilov, Baurzhan
Sagdoldina, Zhuldyz
Andybayeva, Gaukhar
Serik, Nurzhan
Alsar, Zhanna
Utegulov, Zhandos
Insepov, Zinetula
author_facet Almas, Nurlan
Kurbanova, Bayan
Zhakiyev, Nurkhat
Rakhadilov, Baurzhan
Sagdoldina, Zhuldyz
Andybayeva, Gaukhar
Serik, Nurzhan
Alsar, Zhanna
Utegulov, Zhandos
Insepov, Zinetula
author_sort Almas, Nurlan
collection PubMed
description In this study, the mechano-chemical properties of aromatic polymer polyetheretherketone (PEEK) samples, irradiated by high energy electrons at 200 and 400 kGy doses, were investigated by Nanoindentation, Brillouin light scattering spectroscopy and Fourier-transform infrared spectroscopy (FTIR). Irradiating electrons penetrated down to a 5 mm depth inside the polymer, as shown numerically by the monte CArlo SImulation of electroN trajectory in sOlids (CASINO) method. The irradiation of PEEK samples at 200 kGy caused the enhancement of surface roughness by almost threefold. However, an increase in the irradiation dose to 400 kGy led to a decrease in the surface roughness of the sample. Most likely, this was due to the processes of erosion and melting of the sample surface induced by high dosage irradiation. It was found that electron irradiation led to a decrease of the elastic constant C(11), as well as a slight decrease in the sample’s hardness, while the Young’s elastic modulus decrease was more noticeable. An intrinsic bulk property of PEEK is less radiation resistance than at its surface. The proportionality constant of Young’s modulus to indentation hardness for the pristine and irradiated samples were 0.039 and 0.038, respectively. In addition, a quasi-linear relationship between hardness and Young’s modulus was observed. The degradation of the polymer’s mechanical properties was attributed to electron irradiation-induced processes involving scission of macromolecular chains.
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spelling pubmed-93707242022-08-12 Mechano-Chemical Properties of Electron Beam Irradiated Polyetheretherketone Almas, Nurlan Kurbanova, Bayan Zhakiyev, Nurkhat Rakhadilov, Baurzhan Sagdoldina, Zhuldyz Andybayeva, Gaukhar Serik, Nurzhan Alsar, Zhanna Utegulov, Zhandos Insepov, Zinetula Polymers (Basel) Article In this study, the mechano-chemical properties of aromatic polymer polyetheretherketone (PEEK) samples, irradiated by high energy electrons at 200 and 400 kGy doses, were investigated by Nanoindentation, Brillouin light scattering spectroscopy and Fourier-transform infrared spectroscopy (FTIR). Irradiating electrons penetrated down to a 5 mm depth inside the polymer, as shown numerically by the monte CArlo SImulation of electroN trajectory in sOlids (CASINO) method. The irradiation of PEEK samples at 200 kGy caused the enhancement of surface roughness by almost threefold. However, an increase in the irradiation dose to 400 kGy led to a decrease in the surface roughness of the sample. Most likely, this was due to the processes of erosion and melting of the sample surface induced by high dosage irradiation. It was found that electron irradiation led to a decrease of the elastic constant C(11), as well as a slight decrease in the sample’s hardness, while the Young’s elastic modulus decrease was more noticeable. An intrinsic bulk property of PEEK is less radiation resistance than at its surface. The proportionality constant of Young’s modulus to indentation hardness for the pristine and irradiated samples were 0.039 and 0.038, respectively. In addition, a quasi-linear relationship between hardness and Young’s modulus was observed. The degradation of the polymer’s mechanical properties was attributed to electron irradiation-induced processes involving scission of macromolecular chains. MDPI 2022-07-29 /pmc/articles/PMC9370724/ /pubmed/35956582 http://dx.doi.org/10.3390/polym14153067 Text en © 2022 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
Almas, Nurlan
Kurbanova, Bayan
Zhakiyev, Nurkhat
Rakhadilov, Baurzhan
Sagdoldina, Zhuldyz
Andybayeva, Gaukhar
Serik, Nurzhan
Alsar, Zhanna
Utegulov, Zhandos
Insepov, Zinetula
Mechano-Chemical Properties of Electron Beam Irradiated Polyetheretherketone
title Mechano-Chemical Properties of Electron Beam Irradiated Polyetheretherketone
title_full Mechano-Chemical Properties of Electron Beam Irradiated Polyetheretherketone
title_fullStr Mechano-Chemical Properties of Electron Beam Irradiated Polyetheretherketone
title_full_unstemmed Mechano-Chemical Properties of Electron Beam Irradiated Polyetheretherketone
title_short Mechano-Chemical Properties of Electron Beam Irradiated Polyetheretherketone
title_sort mechano-chemical properties of electron beam irradiated polyetheretherketone
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370724/
https://www.ncbi.nlm.nih.gov/pubmed/35956582
http://dx.doi.org/10.3390/polym14153067
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