Evaluation of mechanical behavior of chemically modified Borassus fruit short fiber/unsaturated polyester composites

K.O. Reddy, M. Shukla, C. Uma Maheswari, A.V. Rajulu

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


Natural fine fibers were extracted from Borassus fruits belonging to the Arecaceae family. To improve the surface, these fibers were treated with aq NaOH solution. Composites were prepared by the hand lay up process using both the untreated and alkali-treated Borassus fine fibers as reinforcement and unsaturated polyester resin as matrix. The effect of a coupling agent and alkali treatment of fibers on tensile, flexural and impact properties of the composites was studied. The mechanical properties and interfacial bonding were found to improve when surface modified fibers were employed in the composites. This is due to the improvement of chemical bonding between the treated fibres and polyester matrix as also supported by Fourier transform infrared results. Water absorption by the different composite types was also found to be negligible. © The Author(s) 2012 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.
Original languageEnglish
Pages (from-to)2987-2998
Number of pages12
JournalJournal of Composite Materials
Issue number23
Publication statusPublished - 2012
Externally publishedYes

Bibliographical note

cited By 8


  • Alkali treatment
  • Arecaceae
  • Chemical bondings
  • Chemically modified
  • Fiber composite
  • Fourier transform infrared
  • Hand lay-up
  • Impact property
  • Interfacial bonding
  • Mechanical behavior
  • NaOH solutions
  • Polyester composites
  • Polyester matrix
  • Short Fiber
  • Surface-modified
  • Unsaturated polyester resin, Chemical bonds
  • Coupling agents
  • Esters
  • Fruits
  • Mechanical properties
  • Surface treatment
  • Water absorption, Fibers


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