Effect of Medical Polymer Filling on Tensile Properties of Biomedical Porous Pure Titanium
-
- Nakai Masaaki
- Institute for Materials Research, Tohoku University
-
- Niinomi Mitsuo
- Institute for Materials Research, Tohoku University
-
- Akahori Toshikazu
- Institute for Materials Research, Tohoku University
-
- Yamanoi Hideaki
- Tohoku University
-
- Itsuno Shinichi
- Department of Materials Science, Toyohashi University of Technology
-
- Haraguchi Naoki
- Department of Materials Science, Toyohashi University of Technology
-
- Itoh Yoshinori
- Hamamatsu Technical Support Center, Industrial Research Institute of Shizuoka Prefecture
-
- Ogasawara Tadashi
- Osaka Titanium Technologies Co., Ltd.
-
- Onishi Takashi
- Osaka Titanium Technologies Co., Ltd.
Bibliographic Information
- Other Title
-
- 生体用多孔質純チタンの引張特性に及ぼす医療用高分子充填の影響
- セイタイヨウ タコウシツ ジュンチタン ノ ヒッパリ トクセイ ニ オヨボス イリョウヨウ コウブンシ ジュウテン ノ エイキョウ
Search this article
Abstract
High Young's modulus of metallic biomaterials in comparison with that of bone affects harmfully on bone healing and remodeling. Therefore, it is important to decrease Young's modulus of the metallic biomaterials. In that case, porous materials are advantageous from the viewpoint of obtaining a lower Young's modulus, because Young's modulus decreases with increasing porosity of the porous materials. However, with an increase in porosity, the other mechanical properties start deteriorating simultaneously. This deterioration of the mechanical properties is probably derived from the stress concentration at the pores of the porous materials. In comparison with metallic biomaterials, polymers exhibit lower Young's moduli; thus a polymer filling is a likely option to improve the mechanical properties of porous materials by preventing the stress concentration at the pores without increasing the Young's modulus. Furthermore, certain polymers exhibit intrinsic biofunctionalities. Thus, polymer filling is expected to improve the mechanical properties and impart biofunctionalities to porous materials without an increase in its Young's modulus. In this study, the pores of porous pure titanium (pTi) with the porosity of 22-50% were filled with a medical polymer (polymethylmethacrylate: PMMA). The effects of PMMA filling on the tensile strength and Young's modulus of pTi were then investigated. As a result, it is found that the PMMA filling improves the tensile strength of pTi with the porosity over 40%, although not significantly affecting the Young's modulus of pTi.
Journal
-
- Journal of the Japan Society of Powder and Powder Metallurgy
-
Journal of the Japan Society of Powder and Powder Metallurgy 55 (5), 312-317, 2008
Japan Society of Powder and Powder Metallurgy
- Tweet
Details 詳細情報について
-
- CRID
- 1390001206309195904
-
- NII Article ID
- 10021173120
-
- NII Book ID
- AN00222724
-
- COI
- 1:CAS:528:DC%2BD1cXms1CqtLk%3D
-
- ISSN
- 18809014
- 05328799
- http://id.crossref.org/issn/05328799
-
- NDL BIB ID
- 9531461
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed