Effects of lenr addition on mechanical properties of kenaf fibre reinforced epoxy composites

Mimi Azlina Abu Bakar, Sahrim Ahmad, Wahyu Kuntjoro

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Abstract Effects of liquid epoxidized natural rubber (LENR) on the mechanical behaviour of kenaf fibre reinforced epoxy composite were studied. Kenaf fibres (Hibiscus cannabinus, L. family Malvaceae) and thermoset matrices were hand-laid up and characterized in terms of its mechanical properties. The objective of this research is to investigate the effect of LENR to the flexural and impact properties of the kenaf fibre reinforced epoxy composites. The fibres were alkali treated before use as reinforcement in the epoxy resin matrix. Five different fibre concentrations of 5%, 10%,15%, 20% and 25% by weight have been used (with and without addition of liquid epoxidized natural rubber). Flexural, impact and DMTA tests of rubber toughened epoxy reinforced kenaf fibre composites were performed. The fractured surfaces of these composites were investigated by using scanning electron microscopic technique (SEM) to determine the interfacial bonding between the matrix and the fibre reinforcement. It was found that the addition of LENR increased the flexural strength, flexural modulus and impact strength by 17.6%, 11% and 47% respectively.

Original languageEnglish
Pages (from-to)33-42
Number of pages10
JournalInternational Journal of Plastics Technology
Volume15
Issue number1
DOIs
Publication statusPublished - Jan 2011

Fingerprint

Kenaf fibers
Rubber
Mechanical properties
Composite materials
Liquids
Epoxy Resins
Fibers
Thermosets
Alkalies
Impact strength
Fiber reinforced materials
Epoxy resins
Bending strength
Reinforcement
Scanning
Electrons

Keywords

  • Kenaf fibre
  • Liquid epoxidized natural rubber (LENR)
  • Mechanical properties
  • Polymer composites
  • Toughened

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

Effects of lenr addition on mechanical properties of kenaf fibre reinforced epoxy composites. / Abu Bakar, Mimi Azlina; Ahmad, Sahrim; Kuntjoro, Wahyu.

In: International Journal of Plastics Technology, Vol. 15, No. 1, 01.2011, p. 33-42.

Research output: Contribution to journalArticle

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