Journal of Materials Science

, Volume 26, Issue 17, pp 4759–4764 | Cite as

Comparative evaluation of N-glass and E-glass fibres with special reference to their use in FRP composites

  • P. Ghosh
  • N. R. Bose


The abilities of E-glass and N-glass fibres and of composites based on them to withstand degradative effects in boiling water or in boiling aqueous solutions of HCl (10%), NaOH (0.5%) and NaCl (10%) have been evaluated on a comparative basis by following the loss or retention of strength properties (tensile/flexural) with the time of the respective degradative exposure. The degradative effects under different chemical environments for the composites were also analysed with the help of SEM micrographs of the composites before and after the specific degradative treatments. Analysis of strength properties and retention of strength and of the micrographs clearly indicates that N glass is highly superior to E glass, and the former imparts a much higher order of stability to composites in different chemical environments despite substantial initial advantages in the strength properties for E-glass fibre and composites based on this fibre.


Flexural Strength Methyl Ethyl Ketone Peroxide Boiling Condition Fibre Filament Hydrothermal Ageing 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    P. K. Mallick (ed.), “Fibre-Reinforced Composites”, (Dekker, New York, 1988).Google Scholar
  2. 2.
    S. Kumar, J. Non-Cryst. Solids 80 (March 1986) 122.CrossRefGoogle Scholar
  3. 3.
    K. K. Phani and N. R. Bose, in “Proceedings of Workshop on Acousto-Ultrasonics: Theory and Application, July 1987, Virginia Polytechnic Institute and State University in Blacksburg, Virginia (Plenum, New York, 1988) p. 327.CrossRefGoogle Scholar
  4. 4.
    K. L. Loewenstein, “The Manufacturing Technology of Continuous Glass Fibres” (Elsevier, New York, 1983).Google Scholar
  5. 5.
    K. K. Phani and N. R. Bose, J. Mater. Sci. 21 (1986) 3633.CrossRefGoogle Scholar
  6. 6.
    K. H. G. Ashbee and R. C. Wyatt, Proc. R. Soc. A312 (1969) 553.CrossRefGoogle Scholar
  7. 7.
    O. Ishai, Polym. Eng. Sci. 15 (1975) 486.CrossRefGoogle Scholar
  8. 8.
    J. A. Aveston, A. Kelly and J. M. Silwood, in “Advances in Composite Materials”, Vol. 1, edited by A. R. Bunsell, C. Bathias, A. Martrenchar, D. Henkes and G. Verchery (Pergamon, Paris, 1980) p. 556.Google Scholar
  9. 9.
    A. G. Metcalf and G. K. Schmitz, Glass Technol. 13 (1972) 5.Google Scholar
  10. 10.
    K. Friedrich, J. Mater. Sci. 16 (1981) 3292.CrossRefGoogle Scholar
  11. 11.
    H. D. Chandler and R. L. Jones, ibid. 19 (1984) 3849.CrossRefGoogle Scholar

Copyright information

© Chapman & Hall 1991

Authors and Affiliations

  • P. Ghosh
    • 1
  • N. R. Bose
    • 2
  1. 1.Department of Plastics and Rubber TechnologyUniversity of CalcuttaCalcuttaIndia
  2. 2.Central Glass and Ceramic Research InstituteCalcuttaIndia

Personalised recommendations