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Journal of Materials Science

, Volume 26, Issue 5, pp 1259–1265 | Cite as

Electrochemical effects during thermoset moulding

  • C. D. Rudd
  • K. F. Hutcheon
  • M. J. Owen
Papers

Abstract

This paper describes an investigation of the substantial electrochemical potentials which have been found to arise if dissimilar metals are immersed in an electrolyte of polyester resin while it is curing. Sharp initial changes in the e.m.f. indicate the moment of arrival of resin at the electrodes, and the subsequent magnitude can be used to indicate the state of cure. The e.m.f. was found to be influenced by the addition of calcium carbonate filler powder to the base resin, as well as by the choice of electrode metals. Aluminium and copper were selected for practical applications, and tested under transfer moulding conditions. A prototype instrument suitable for incorporating in a mould to indicate the completion of filling and the state of cure in a resin transfer moulding process is described. The results will also have application to other thermoset moulding processes.

Keywords

Polymer Calcium Copper Calcium Carbonate Electrode Metal 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    M. J. Owen, V. Middleton, K. F. Hutcheon, F. N. Scott and C. D. Rudd, in Proceedings of 16th Annual Reinforced Plastics Congress, Blackpool, 7–10th November, 1988 (British Plastics Federation) Paper 28, pp. 127–130.Google Scholar
  2. 2.
    M. J. Owen, V. Middleton, C. D. Rudd, F. N. Scott and K. F. Hutcheon, in Proceedings of 2nd International Conference on Automated Composites, Leeuwenhorst, Netherlands, 26–28th September, 1988 (Plastic and Rubber Institute) Paper 18.Google Scholar
  3. 3.
    M. J. Owen, V. Middleton, K. F. Hutcheon F. N. Scott and C. D. Rudd, Proc. I.Mech.E., Des. Compos. Mater. (1989) 107–114.Google Scholar
  4. 4.
    K. F. Hutcheon, MPhil. thesis, University of Nottingham (1989) (restricted).Google Scholar

Copyright information

© Chapman and Hall Ltd. 1991

Authors and Affiliations

  • C. D. Rudd
    • 1
  • K. F. Hutcheon
    • 1
  • M. J. Owen
    • 1
  1. 1.Department of Mechanical EngineeringThe University of NottinghamUniversity ParkUK

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