Skip to main content
SpringerLink
Log in

The microhardness of injection moulded polystyrene and polyethylene

  • Papers
  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

Injection moulded plaques of polystyrene and of two types of high density polyethylene have been produced under different moulding conditions. The mean densityϱ of each plaque together with its surface microhardnessV H have been measured. Polystyrene shows only a slight increase inϱ with increasing mould temperatureT m together with a reduced spread inϱ andV H values. In polyethylene, however,ϱ andV H both increase linearly withT m, giving a usefulV H againstϱ relation, which is attributed to increased percentage crystallinity.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. A. Redner,Plast. Eng. Feb. (1987) 37.

  2. R. G. Treuting andW. T. Read Jr,J. Appl. Phys. 22 (1951) 130.

    Google Scholar 

  3. “American Institute of Physics Handbook” (McGraw Hill Book Co., New York, 1972).

  4. F. J. Balta Calleja, D. R. Rueda, R. S. Porter andW. T. Mead,J. Mater. Sci. 15 (1980) 765.

    Google Scholar 

  5. A. Zehavi andF. E. Filisko,J. Macromol. Sci. Phys. B21 (1982) 47.

    Google Scholar 

  6. R. F. Roe,J. Appl. Phys. 48 (1977) 4085.

    Google Scholar 

  7. I. G. Brown, R. E. Wetton, M. J. Richardson andN. G. Savill,Polymer 19 (1978) 659.

    Google Scholar 

  8. D. R. Rueda, F. J. Balta Calleja andR. K. Bayer,J. Mater. Sci. 16 (1981) 3371.

    Google Scholar 

  9. B. T. A. Chang andJ. C. M. Li,J. Mater. Sci. 15 (1980) 1364.

    Google Scholar 

  10. R. L. Ballman, T. Shusman andH. L. Toor,Mod. Plast. 37 (1959) 105.

    Google Scholar 

  11. I. M. Barrie,Plast. Polym. 37 (1969) 463.

    Google Scholar 

  12. M. R. Kamal andS. Kenig,Polym. Engng Sci. 12 (1972) 294.

    Google Scholar 

  13. J. L. Berger andC. G. Gogos,ibid. 13 (1973) 209.

    Google Scholar 

  14. J. L. White,ibid. 15 (1975) 44.

    Google Scholar 

  15. M. R. Kamal, Y. Kuo andP. H. Doan,ibid. 15 (1975) 863.

    Google Scholar 

  16. E. Broyes, C. Gutfinger andZ. Tadmor,Trans. Soc. Rheol. 19 (1975) 423.

    Google Scholar 

  17. J. F. Steven, A. Galsky, K. K. Wang, I. Chen andD. H. Reber,Polym. Engng Sci. 17 (1977) 666.

    Google Scholar 

  18. J. L. White andW. Dietz,ibid. 19 (1979) 1081.

    Google Scholar 

  19. A. I. Isayev andC. A. Hieber,Rheol. Acta. 19 (1980) 168.

    Google Scholar 

  20. B. L. Evans, To be published.

  21. E. S. Clark,Plast. Eng. 30 (1974) 73.

    Google Scholar 

  22. M. R. Kantz, H. D. Newman andF. H. Stigale,J. Appl. Polym. Sci. 16 (1972) 1249.

    Google Scholar 

  23. V. Tan andM. R. Kamal,ibid. 22 (1978) 2341.

    Google Scholar 

  24. M. Fujiyama, H. Awaya andS. Kimura,ibid. 21 (1977) 3291.

    Google Scholar 

  25. M. Fujiyama andS. Kimura,ibid. 22 (1978) 1225.

    Google Scholar 

  26. M. Fujiyama andK. Azuma,ibid. 23 (1979) 2807.

    Google Scholar 

  27. S. Y. Hobbs andC. F. Pratt,ibid. 19 (1975) 1701.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. J. J. Thomson Physical Laboratory, University of Reading, Whiteknights, Box 220, Reading, Berkshire, UK

    B. L. Evans

Authors
  1. B. L. Evans
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Evans, B.L. The microhardness of injection moulded polystyrene and polyethylene. J Mater Sci 24, 173–182 (1989). https://doi.org/10.1007/BF00660950

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00660950

Keywords

Search

Navigation