Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-20T02:21:43.303Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of crystalline and amorphous phases on the transfer of polytetrafluoroethylene (PTFE) onto metallic substrates

Published online by Cambridge University Press:  31 January 2011

E-L. Yang
E-L. Yang
Affiliation:
Department of Physics, University of Helsinki, Siltavuorenpenger 20M, 00170 Helsinki, Finland
Get access

Abstract

The transfer of polytetrafluoroethylene (PTFE) onto stainless steel (AISI 316) and silicon wafers in a static contact was characterized at temperatures ranging from 21 °C to 300 °C. The amount of transferred PTFE on AISI 316 substrate was found to be strongly time- and temperature-dependent, and reached a steady state after a certain period of contact time. On testing the effect of temperature on this steady transfer state, an almost temperature independent amount of PTFE was observed to be transferred onto AISI 316 at temperatures between 130 and 180 °C. This steady state started at the glass transition at about 127 °C. This was significantly consistent with an almost constant amorphous-to-crystalline phase ratio at about the same temperature range as determined using infrared spectrophotometry (IR). In general, the amount of the transferred PTFE on AISI 316 depended on the relative amount of amorphous phase in the PTFE contact area. Thus, the amorphous phase in semicrystalline PTFE evidently plays an active role in the transfer process.

Type
Articles
Information
Journal of Materials Research , Volume 7 , Issue 11 , November 1992 , pp. 3139 - 3149
Copyright
Copyright © Materials Research Society 1992

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

1Steijn, R. P., Wear 8, 193 (1968).CrossRefGoogle Scholar
2Shooter, K.V. and Tabor, D., Proc. Phys. Soc. B 65, 661 (1952).CrossRefGoogle Scholar
3Speerschneider, C. J. and Li, C.H., J. Appl. Phys. 33, 1871 (1962).CrossRefGoogle Scholar
4Makinson, R.K. and Tabor, D., Proc. R. Soc. London, Series A, 281, 49 (1964).Google Scholar
5Kar, M.K. and Bahadur, S., Wear 46, 189 (1978).CrossRefGoogle Scholar
6Tanaka, K., Uchiyama, Y., and Toyooka, S., Wear 23, 153 (1973).Google Scholar
7Lontz, L.F. and Kumnick, M.C., ASLE Trans. 6, 276 (1963).Google Scholar
8Thomas, P. E., Lontz, J. F., Sperati, C. A., and McPherson, J. L., Soc. Plastics Engrs. J. 12, 89 (1956).Google Scholar
9Hu, T. Y. and Eiss, N. S. Jr., Wear 84, 203 (1983).Google Scholar
10Moynihan, R.E., J. Am. Chem. Soc. 81, 1045 (1959).CrossRefGoogle Scholar
11Miller, R.G.J. and Willis, H.A., J. Polym. Sci. 15, 485 (1956).CrossRefGoogle Scholar
12Araki, Y., J. Appl. Polym. Sci. 11, 953 (1965).CrossRefGoogle Scholar
13Zerbi, G. and Sacchi, M., Macromolecules 6, 692 (1973).CrossRefGoogle Scholar
14McCrum, N. G., J. Polym. Sci. 34, 355 (1959).CrossRefGoogle Scholar
15Araki, Y., J. Appl. Polym. Sci. 9, 1515 (1965).CrossRefGoogle Scholar
16Kar, M. K. and Bahadur, S., Wear 82, 81 (1982).CrossRefGoogle Scholar
17Yang, E-L., Hirvonen, J-P., and Toivanen, R. O., Wear 146, 367 (1991).CrossRefGoogle Scholar
18Brainard, W. A. and Buckley, D.H., Wear 26, 75 (1973).CrossRefGoogle Scholar
19Briscoe, B.J., Tribol. Int. 14, 231 (1981).Google Scholar
20Wheeler, D. R., Wear 66, 355 (1981).CrossRefGoogle Scholar
21Jain, V.K. and Bahadur, S., Wear 46, 177 (1978).CrossRefGoogle Scholar
22Hirvonen, J-P. and Yang, E-L., Mater. Lett. 8, 197 (1989).CrossRefGoogle Scholar
23Sperati, C. A. and Starweather, H. W. Jr., Adv. Polym. Sci. 2, 465 (1961).CrossRefGoogle Scholar
24Hirvonen, J-P., private communication.Google Scholar
25Yang, E-L., Application of Nuclear Reaction Analysis to the Study of Transfer Wear of Polytetrafluoroethylene on Stainless Steel, Thesis of M. Sc, Univ. of Helsinki, ES 142 (1989).Google Scholar
26Mandelkern, L., in Physical Properties of Polymers (American Chemical Society, Washington, DC, 1984), p. 175.Google Scholar
27Buckley, D.H., Surface Effects in Adhesion, Wear, and Lubrication (Elsevier, Amsterdam, 1981), p. 298.Google Scholar
28Gong, D-L., Xue, Q-J., and Wang, H-L., Wear 147, 9 (1991).Google Scholar
29Lappalainen, R., Yang, E-L., and Hirvonen, J-P., Surf. Interface Anal. 16, 385 (1990).CrossRefGoogle Scholar