Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-25T18:47:23.723Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of Calcification on The Fatigue Behavior of Fluorinated Polyurethanes

Published online by Cambridge University Press:  10 February 2011

R. S. Benson  and
H. J. Kim
R. S. Benson
Affiliation:
Materials Science and Engineering, University of Tennessee, Knoxville, TN 37996–2200
H. J. Kim
Affiliation:
Materials Science and Engineering, Kungju University, Kongju, KOREA
Get access

Abstract

The present study compares the fatigue propagation behavior of a fluorinated and nonfluorinated polyurethane-calcium salt blends. The calcium salts used in this study are calcium chloride and hydroxyapatite (HAP). The fatigue crack propagation (FCP) behavior of the polyurethanes exhibited a dependence on the chemical composition of the polymer and calcium salt. The pure non-fluorinated PTMG2000 did no undergo crack propagation. While the fluorinated PTMG2003F exhibit a crack propagation rate of 7.8 × 10-6 m/cycle at constant strain amplitude and tearing energy range. The incorporation of calcium chloride into PTMG2000 did not promote any changes in the FCP behavior; while the addition of HAP produced cracks with a growth rate of 3.33 × 10-6 m/cycle. In the case of PTMG2003F, the addition of calcium chloride did not lead to formation of cracks; while HAP produced a material in which cracks propagated at a rate of 10.0 × 10-6 m/cycle. The difference in the response the non-fluorinated and fluorinated polyurethane-calcium salt blends to cyclic loading can be attributed to molecular level variations such as domains disruption and changes in chain orientation at the crack tip.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 599: Symposium DD – Mineralization in Natural & Synthetic Biomaterials , 1999 , 281
Copyright
Copyright © Materials Research Society 2000

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Brady, R. F., Jr, Nature 386(6466), 16–17(1994)Google Scholar
2. Yoshioka, Y., Koyanagi, H., and Tsutsui, H., Chemical Abstract 110, 44895q(1989)Google Scholar
3. Tanny, G. B.,, Kenningsberg, Y., and Shchori, E.,. U.S. Patent 5 126 189 June 30, 1992 Google Scholar
4. Tanny, G. B., , Kenningsberg, Y., and Shchori, E.,. Chemical Abstract 117, 19331 lt (1992)Google Scholar
5. Goldenberg, M., , US Patent 4 933 408, June 12, 1990 Google Scholar
6. Matsuda, T., , Takahura, T., and Itoh, T., Chemical Abstract 112, 240560g (1990)Google Scholar
7. Takakura, T.,, Kato, M., and Yamabe, M., Makromol Chem. 191, 625–32 (1990)Google Scholar
8. Huskins, D. W. l., Calcified Tissues, CRC Press Inc. Boca Raton, FL(1989).Google Scholar
9. Rivlin, R. S., and Thomas, A. G., J. Polym. Sci. 10, 291(1953)Google Scholar
10. Thomas, A. G., J. Polym. Sci. 31, 467(1958)Google Scholar
11. Lake, G. J., and Lindley, P. B., J. Appl. Polym. Sci.,3, 707(1964)Google Scholar
12. Young, D. G., Rubber Chem. Tech., 58, 785(1986)Google Scholar
13. Neogi, C., , Bhowmick, A. K. and Basin, S. P. J. Elastomers Plastics, 24, 96(1992)Google Scholar
14. Gent, A. N., Lindley, P. B., and Thomas, A. G., J. Appl. Polym. Sci., 8, 455(1964)Google Scholar
15. Lindley, P. B.,.and Stevenson, A., Rubber Chem. Tech.,55, 337(1982)Google Scholar
16. Young, P. G., Kresge, E. N., and Wallace, A. J., Rubber Chem. Tech. 55, 428(1982)Google Scholar
17. Stevenson, A.,. Int. J. Fract. 23, 47(1983)Google Scholar
18. Thomas, A. G., J. Polym. Sci. 10, 291(1955)Google Scholar
19. Takahara, A.,, Kobunshi Ronbunshu, 39, 203(1982)Google Scholar
20. , A., TakaharaPolym. Prepr. Jpn.,32(8), 2007(1983)Google Scholar
21. Kim, H. J., Ph.D. Dissertation, University of Tennessee (1993)Google Scholar
22. Yu, X. H., Okkema, A.Z., and Cooper, S.L., J. Appl. Polym. Sci. 41, 1777(1990)Google Scholar
23. Kim, H. J. and Benson, R. S., J. Bio-Medical Mechanical Behavior, Materials and Engineering 4, 171(1994)Google Scholar
24. Bonart, R., J. Macromol Sci.-Phys., B2(1), 115 (1968)Google Scholar
25. Kim, H.J., Worley, D. C. II, and Benson, R. S., Polymer 38, 2609(1997)Google Scholar