Friction Properties of Laminated Composite Materials of Alpha-Tricalcium Phosphate–Filled Poly (Vinyl Alcohol) Hydrogels
The aim of this study was to examine the mechanical characteristics of a polyvinyl alcohol hydrogel (PVA-H) as a candidate material for artificial joint cartilage. In the study, PVA-H was filled with α-tricalcium phosphate (α-TCP) in order to improve its mechanical properties. In...
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| Format: | Article |
| Language: | English |
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Japanese Society of Tribologists
2015-12-01
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| Series: | Tribology Online |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/trol/10/6/10_413/_pdf/-char/en |
| _version_ | 1818751961607962624 |
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| author | Kanae Yamamoto Tomoaki Iwai Yutaka Shoukaku |
| author_facet | Kanae Yamamoto Tomoaki Iwai Yutaka Shoukaku |
| author_sort | Kanae Yamamoto |
| collection | DOAJ |
| description | The aim of this study was to examine the mechanical characteristics of a polyvinyl alcohol hydrogel (PVA-H) as a candidate material for artificial joint cartilage. In the study, PVA-H was filled with α-tricalcium phosphate (α-TCP) in order to improve its mechanical properties. In addition, laminated composite materials with 3 layers were prepared by laminating α-TCP–filled PVA-H and unfilled PVA-H. The samples were prepared with different numbers of repeated freeze–thaw cycles and several concentrations of α-TCP. Compression tests and friction tests were carried out to investigate the mechanical and friction properties of the PVA-H. The results of the tests showed that the compressive modulus and the friction coefficient of the α-TCP–filled PVA-H were higher than those of the unfilled PVA-H. Thus, α-TCP was found to be effective in reinforcing the PVA-H. In the friction tests, the friction coefficient of the laminated material was approximately equal to the values of the unfilled PVA-H. Furthermore, the compressive moduli of the laminated materials that underwent 5 and 7 freeze–thaw cycles improved to a level equal to that of the α-TCP–filled PVA-Hs. Therefore, the lamination of PVA-H made it possible to achieve both a low friction coefficient and high compressive strength. |
| first_indexed | 2024-12-18T04:43:53Z |
| format | Article |
| id | doaj.art-b63189d8452346159878125d58419045 |
| institution | Directory Open Access Journal |
| issn | 1881-2198 |
| language | English |
| last_indexed | 2024-12-18T04:43:53Z |
| publishDate | 2015-12-01 |
| publisher | Japanese Society of Tribologists |
| record_format | Article |
| series | Tribology Online |
| spelling | doaj.art-b63189d8452346159878125d584190452022-12-21T21:20:38ZengJapanese Society of TribologistsTribology Online1881-21982015-12-0110641341910.2474/trol.10.413trolFriction Properties of Laminated Composite Materials of Alpha-Tricalcium Phosphate–Filled Poly (Vinyl Alcohol) HydrogelsKanae Yamamoto0Tomoaki Iwai1Yutaka Shoukaku2Graduate School of Natural Science and Technology, Kanazawa UniversityInstitute of Science and Engineering, Kanazawa UniversityInstitute of Science and Engineering, Kanazawa UniversityThe aim of this study was to examine the mechanical characteristics of a polyvinyl alcohol hydrogel (PVA-H) as a candidate material for artificial joint cartilage. In the study, PVA-H was filled with α-tricalcium phosphate (α-TCP) in order to improve its mechanical properties. In addition, laminated composite materials with 3 layers were prepared by laminating α-TCP–filled PVA-H and unfilled PVA-H. The samples were prepared with different numbers of repeated freeze–thaw cycles and several concentrations of α-TCP. Compression tests and friction tests were carried out to investigate the mechanical and friction properties of the PVA-H. The results of the tests showed that the compressive modulus and the friction coefficient of the α-TCP–filled PVA-H were higher than those of the unfilled PVA-H. Thus, α-TCP was found to be effective in reinforcing the PVA-H. In the friction tests, the friction coefficient of the laminated material was approximately equal to the values of the unfilled PVA-H. Furthermore, the compressive moduli of the laminated materials that underwent 5 and 7 freeze–thaw cycles improved to a level equal to that of the α-TCP–filled PVA-Hs. Therefore, the lamination of PVA-H made it possible to achieve both a low friction coefficient and high compressive strength.https://www.jstage.jst.go.jp/article/trol/10/6/10_413/_pdf/-char/enpolyvinyl alcohol hydrogelfriction coefficientstribeck curvelaminated composite materialalpha-tricalcium phosphatehydroxyapatite |
| spellingShingle | Kanae Yamamoto Tomoaki Iwai Yutaka Shoukaku Friction Properties of Laminated Composite Materials of Alpha-Tricalcium Phosphate–Filled Poly (Vinyl Alcohol) Hydrogels Tribology Online polyvinyl alcohol hydrogel friction coefficient stribeck curve laminated composite material alpha-tricalcium phosphate hydroxyapatite |
| title | Friction Properties of Laminated Composite Materials of Alpha-Tricalcium Phosphate–Filled Poly (Vinyl Alcohol) Hydrogels |
| title_full | Friction Properties of Laminated Composite Materials of Alpha-Tricalcium Phosphate–Filled Poly (Vinyl Alcohol) Hydrogels |
| title_fullStr | Friction Properties of Laminated Composite Materials of Alpha-Tricalcium Phosphate–Filled Poly (Vinyl Alcohol) Hydrogels |
| title_full_unstemmed | Friction Properties of Laminated Composite Materials of Alpha-Tricalcium Phosphate–Filled Poly (Vinyl Alcohol) Hydrogels |
| title_short | Friction Properties of Laminated Composite Materials of Alpha-Tricalcium Phosphate–Filled Poly (Vinyl Alcohol) Hydrogels |
| title_sort | friction properties of laminated composite materials of alpha tricalcium phosphate ndash filled poly vinyl alcohol hydrogels |
| topic | polyvinyl alcohol hydrogel friction coefficient stribeck curve laminated composite material alpha-tricalcium phosphate hydroxyapatite |
| url | https://www.jstage.jst.go.jp/article/trol/10/6/10_413/_pdf/-char/en |
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