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Microstructural Characterization of a New Polytetrafluoroethylene for Artificial Hip Prosthesis

Published online by Cambridge University Press:  02 July 2020

A. Kaulgud ,
A. Crugnola ,
T. Vasilos  and
C. Sung
A. Kaulgud
Affiliation:
Department of Chemical and Nuclear Engineering, Center for Advanced Materials, University of Massachusetts, Lowell, MA01854
A. Crugnola
Affiliation:
Department of Plastics Engineering, University of Massachusetts, Lowell, MA01854
T. Vasilos
Affiliation:
Department of Chemical and Nuclear Engineering, Center for Advanced Materials, University of Massachusetts, Lowell, MA01854
C. Sung
Affiliation:
Department of Chemical and Nuclear Engineering, Center for Advanced Materials, University of Massachusetts, Lowell, MA01854
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Extract

All joints in the human body are subject to destruction by disease and trauma. Although the modem concept of joint replacements dates back to 1800's, polymeric material were not utilized till 1940's [1]. Early experiments were conducted with polymethacrylate and polytetrafluoroethylene. The results were disappointing with the polymeric material either quick fracturing or wearing at an extreme rapid rate. Microstructures were not well investigated as a function of processing conditions.

The goal of this research is to eliminate the presence of oxygen within the components during its processing operations, which is responsible for early failure of polytetrafluoroethylene. One approach to eliminate or reduce the amount of oxygen would be processing the PTFE resin in vacuum conditions. This research is aimed towards investigating the microstructure of PTFE when processed under vacuum conditions using SEM and TEM along with EDXS.

The fabricated PTFE billet samples were received from Dewal Industries, NJ and the PTFE components in vacuum conditions, processed at University of Massachusetts Lowell (UML) were studied using microscopic techniques.

Type
Advances in Polymer Characterization
Information
Microscopy and Microanalysis , Volume 6 , Issue S2: Proceedings: Microscopy & Microanalysis 2000, Microscopy Society of America 58th Annual Meeting, Microbeam Analysis Society 34th Annual Meeting, Microscopical Society of Canada/Societe de Microscopie de Canada 27th Annual Meeting, Philadelphia, Pennsylvania August 13-17, 2000 , August 2000 , pp. 1124 - 1125
Copyright
Copyright © Microscopy Society of America

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References

References:

1.M., M., J. of Metal Feb 46(1997)Google Scholar
2.Benderly, A.A., J Appl. Polym. Sci., Polym.Phys., 26, 2133 (1988).Google Scholar
3.Rahl, F J, etal J. of Polymer Science Part A-2, 10,1337–1349(1972)CrossRefGoogle Scholar