Sisal/Carbon Fibre Reinforced Hybrid Composites: Tensile, Flexural and Chemical Resistance Properties

P. Noorunnisa Khanam, H. P.S.Abdul Khalil, M. Jawaid, G. Ramachandra Reddy, C. Surya Narayana, S. Venkata Naidu

Research output: Contribution to journalArticlepeer-review

133 Citations (Scopus)


The variation of mechanical properties such as tensile and flexural properties of randomly oriented unsaturated polyester based sisal/carbon fibre reinforced hybrid composites with different fibre weight ratios have been studied. The chemical resistance test of these hybrid composites to various solvents, acids and alkalies were studied. The effect of NaOH treatment of sisal fibres on the tensile, flexural and chemical resistance properties of these sisal/carbon hybrid composites has also been studied. The hybrid composites showed an increase in tensile and flexural properties with increase in the carbon fibre loading. The tensile properties and flexural properties of these hybrid composites have been found to be higher than that of the matrix. Significant improvement in tensile properties and flexural properties of the sisal/carbon hybrid composites has been observed by alkali treatment. The chemical resistance test results showed that these untreated and alkali treated hybrid composites are résistance to all chemicals except carbon tetra chloride. Hand lay-up technique was used for making the composites and tests are carried out by using ASTM methods.

Original languageEnglish
Pages (from-to)727-733
Number of pages7
JournalJournal of Polymers and the Environment
Issue number4
Publication statusPublished - Dec 2010
Externally publishedYes


  • Carbon fibre
  • Flexural properties
  • Hybrid composites
  • Sisal fibre
  • Tensile properties
  • Unsaturated polyester resin

ASJC Scopus subject areas

  • Environmental Engineering
  • Polymers and Plastics
  • Materials Chemistry


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