Effect of epoxidized natural rubber on mechanical properties of epoxy reinforced kenaf fibre composites

M. A. Abu Bakar, Sahrim Ahmad, W. Kuntjoro

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Kenaf fibre that is known as Hibiscus cannabinus, L. family Malvaceae is an herbaceous plant that can be grown under a wide range of weather conditions. The uses of kenaf fibres as a reinforcement material in the polymeric matrix have been widely investigated. It is known that epoxy has a disadvantage of brittleness and exhibits low toughness. In this research, liquid epoxidized natural rubber (LENR) was introduced to the epoxy to increase its toughness. Kenaf fibres, with five different fibre loadings of 5%, 10%, 15%, 20% and 25% by weight, were used to reinforce the epoxy resins (with and without addition of epoxidized natural rubber) as the matrices. The flexural strength, flexural modulus and fracture toughness of the rubber toughened epoxy reinforced kenaf fibre composites were investigated. The results showed that the addition of liquid epoxidized natural rubber (LENR) had improved the flexural modulus, flexural strength and fracture toughness by 48%, 30%, and 1.15% respectively at 20% fibre loading. The fractured surfaces of these composites were investigated by using scanning electron microscopic (SEM) technique to determine the interfacial bonding between the matrix and the fibre reinforcement.

Original languageEnglish
Pages (from-to)129-137
Number of pages9
JournalPertanika Journal of Science and Technology
Volume20
Issue number1
Publication statusPublished - Jan 2012

Fingerprint

Kenaf fibers
Hibiscus
kenaf
Rubber
composite materials
rubber
epoxides
mechanical properties
mechanical property
Mechanical properties
Composite materials
Bending strength
Toughness
Fracture toughness
fracture toughness
Hibiscus cannabinus
Epoxy Resins
Malvaceae
liquids
Fibers

Keywords

  • Biocomposite
  • Kenaf fibre
  • Mechanical properties
  • Natural rubber
  • Toughened

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Chemical Engineering(all)
  • Computer Science(all)
  • Environmental Science(all)

Cite this

Effect of epoxidized natural rubber on mechanical properties of epoxy reinforced kenaf fibre composites. / Abu Bakar, M. A.; Ahmad, Sahrim; Kuntjoro, W.

In: Pertanika Journal of Science and Technology, Vol. 20, No. 1, 01.2012, p. 129-137.

Research output: Contribution to journalArticle

@article{57354e54c13c4449995dcfee0afd2d4b,
title = "Effect of epoxidized natural rubber on mechanical properties of epoxy reinforced kenaf fibre composites",
abstract = "Kenaf fibre that is known as Hibiscus cannabinus, L. family Malvaceae is an herbaceous plant that can be grown under a wide range of weather conditions. The uses of kenaf fibres as a reinforcement material in the polymeric matrix have been widely investigated. It is known that epoxy has a disadvantage of brittleness and exhibits low toughness. In this research, liquid epoxidized natural rubber (LENR) was introduced to the epoxy to increase its toughness. Kenaf fibres, with five different fibre loadings of 5{\%}, 10{\%}, 15{\%}, 20{\%} and 25{\%} by weight, were used to reinforce the epoxy resins (with and without addition of epoxidized natural rubber) as the matrices. The flexural strength, flexural modulus and fracture toughness of the rubber toughened epoxy reinforced kenaf fibre composites were investigated. The results showed that the addition of liquid epoxidized natural rubber (LENR) had improved the flexural modulus, flexural strength and fracture toughness by 48{\%}, 30{\%}, and 1.15{\%} respectively at 20{\%} fibre loading. The fractured surfaces of these composites were investigated by using scanning electron microscopic (SEM) technique to determine the interfacial bonding between the matrix and the fibre reinforcement.",
keywords = "Biocomposite, Kenaf fibre, Mechanical properties, Natural rubber, Toughened",
author = "{Abu Bakar}, {M. A.} and Sahrim Ahmad and W. Kuntjoro",
year = "2012",
month = "1",
language = "English",
volume = "20",
pages = "129--137",
journal = "Pertanika Journal of Science and Technology",
issn = "0128-7680",
publisher = "Universiti Putra Malaysia",
number = "1",

}

TY - JOUR

T1 - Effect of epoxidized natural rubber on mechanical properties of epoxy reinforced kenaf fibre composites

AU - Abu Bakar, M. A.

AU - Ahmad, Sahrim

AU - Kuntjoro, W.

PY - 2012/1

Y1 - 2012/1

N2 - Kenaf fibre that is known as Hibiscus cannabinus, L. family Malvaceae is an herbaceous plant that can be grown under a wide range of weather conditions. The uses of kenaf fibres as a reinforcement material in the polymeric matrix have been widely investigated. It is known that epoxy has a disadvantage of brittleness and exhibits low toughness. In this research, liquid epoxidized natural rubber (LENR) was introduced to the epoxy to increase its toughness. Kenaf fibres, with five different fibre loadings of 5%, 10%, 15%, 20% and 25% by weight, were used to reinforce the epoxy resins (with and without addition of epoxidized natural rubber) as the matrices. The flexural strength, flexural modulus and fracture toughness of the rubber toughened epoxy reinforced kenaf fibre composites were investigated. The results showed that the addition of liquid epoxidized natural rubber (LENR) had improved the flexural modulus, flexural strength and fracture toughness by 48%, 30%, and 1.15% respectively at 20% fibre loading. The fractured surfaces of these composites were investigated by using scanning electron microscopic (SEM) technique to determine the interfacial bonding between the matrix and the fibre reinforcement.

AB - Kenaf fibre that is known as Hibiscus cannabinus, L. family Malvaceae is an herbaceous plant that can be grown under a wide range of weather conditions. The uses of kenaf fibres as a reinforcement material in the polymeric matrix have been widely investigated. It is known that epoxy has a disadvantage of brittleness and exhibits low toughness. In this research, liquid epoxidized natural rubber (LENR) was introduced to the epoxy to increase its toughness. Kenaf fibres, with five different fibre loadings of 5%, 10%, 15%, 20% and 25% by weight, were used to reinforce the epoxy resins (with and without addition of epoxidized natural rubber) as the matrices. The flexural strength, flexural modulus and fracture toughness of the rubber toughened epoxy reinforced kenaf fibre composites were investigated. The results showed that the addition of liquid epoxidized natural rubber (LENR) had improved the flexural modulus, flexural strength and fracture toughness by 48%, 30%, and 1.15% respectively at 20% fibre loading. The fractured surfaces of these composites were investigated by using scanning electron microscopic (SEM) technique to determine the interfacial bonding between the matrix and the fibre reinforcement.

KW - Biocomposite

KW - Kenaf fibre

KW - Mechanical properties

KW - Natural rubber

KW - Toughened

UR - http://www.scopus.com/inward/record.url?scp=84856753539&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84856753539&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:84856753539

VL - 20

SP - 129

EP - 137

JO - Pertanika Journal of Science and Technology

JF - Pertanika Journal of Science and Technology

SN - 0128-7680

IS - 1

ER -