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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| Format: | Article |
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MDPI AG
2022-07-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/15/3067 |
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| author | Nurlan Almas Bayan Kurbanova Nurkhat Zhakiyev Baurzhan Rakhadilov Zhuldyz Sagdoldina Gaukhar Andybayeva Nurzhan Serik Zhanna Alsar Zhandos Utegulov Zinetula Insepov |
| author_facet | Nurlan Almas Bayan Kurbanova Nurkhat Zhakiyev Baurzhan Rakhadilov Zhuldyz Sagdoldina Gaukhar Andybayeva Nurzhan Serik Zhanna Alsar Zhandos Utegulov Zinetula Insepov |
| author_sort | Nurlan Almas |
| collection | DOAJ |
| 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 <i>C</i><sub>11</sub>, 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. |
| first_indexed | 2024-03-09T05:04:07Z |
| format | Article |
| id | doaj.art-7e48d4892cae4f1d938eeca399f6c79a |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T05:04:07Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-7e48d4892cae4f1d938eeca399f6c79a2023-12-03T12:56:22ZengMDPI AGPolymers2073-43602022-07-011415306710.3390/polym14153067Mechano-Chemical Properties of Electron Beam Irradiated PolyetheretherketoneNurlan Almas0Bayan Kurbanova1Nurkhat Zhakiyev2Baurzhan Rakhadilov3Zhuldyz Sagdoldina4Gaukhar Andybayeva5Nurzhan Serik6Zhanna Alsar7Zhandos Utegulov8Zinetula Insepov9Department of Science and Innovation, Astana IT University, Nur-Sultan 010000, KazakhstanDepartment of Physics, School of Sciences and Humanities, Nazarbayev University, Nur-Sultan 010000, KazakhstanDepartment of Science and Innovation, Astana IT University, Nur-Sultan 010000, KazakhstanSurface Engineering Tribology Centre, Amanzholov University, Oskemen 070020, KazakhstanSurface Engineering Tribology Centre, Amanzholov University, Oskemen 070020, KazakhstanSurface Engineering Tribology Centre, Amanzholov University, Oskemen 070020, KazakhstanDepartment of Engineering, Astana International University, Nur-Sultan 010000, KazakhstanDepartment of Engineering, Astana International University, Nur-Sultan 010000, KazakhstanDepartment of Physics, School of Sciences and Humanities, Nazarbayev University, Nur-Sultan 010000, KazakhstanSchool of Nuclear Engineering, Purdue University, West Lafayette, IN 47907, USAIn 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 <i>C</i><sub>11</sub>, 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.https://www.mdpi.com/2073-4360/14/15/3067polyetheretherketoneelectron beam irradiationnanoindentationroughnesshardnessYoung’s modulus |
| spellingShingle | Nurlan Almas Bayan Kurbanova Nurkhat Zhakiyev Baurzhan Rakhadilov Zhuldyz Sagdoldina Gaukhar Andybayeva Nurzhan Serik Zhanna Alsar Zhandos Utegulov Zinetula Insepov Mechano-Chemical Properties of Electron Beam Irradiated Polyetheretherketone Polymers polyetheretherketone electron beam irradiation nanoindentation roughness hardness Young’s modulus |
| 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 | polyetheretherketone electron beam irradiation nanoindentation roughness hardness Young’s modulus |
| url | https://www.mdpi.com/2073-4360/14/15/3067 |
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