Effects of fiber content and processing parameters on tensile properties of unidirectional long kenaf fiber reinforced polylactic-acid composite

Izdihar Tharazi, Norhamidi Muhamad, Nur Farhani Ismail, Mohd Khairul Fadzly Md Radzi, Zakaria Razak, Dulina Tholibon, Majid Niaz Akhtar

Research output: Contribution to journalArticle

Abstract

Recent developments within the field of natural fiber-reinforced polymer composite have led to a renewed interest in fully biodegradable composite or green composite. Interest in using green composites is due to environmental awareness concerns as well as stringent government regulations. The study is aimed to determine the optimum percentage of fiber content for unidirectional long kenaf fiber (LKF) reinforced polylactic-acid composites. In addition, the influence of processing parameters has also been investigated but only for the optimum fiber content. The percentage of kenaf used are 10 wt% to 50 wt% prepared by film stacking method with a hot-Press machine. A series of tensile tests was performed to obtain the tensile strength, including the Young's modulus of the composite. The 40 wt% fiber composites showed tensile strength, and the Young's modulus increased linearly to 230% and 650%, respectively. Furthermore, for 50 wt% of fiber content, tensile strength and young modulus increased linearly to 244% and 625% compare to pure polymer, respectively. It was found that better tensile properties were achieved with 50%wt fiber composites produced at a temperature of 200 ° C, 5MPa compression pressure and 5 minutes holding time. Applications for fabricated compoistes are in non-structural to structural with medium loads, especially in the field of aerospace, automotive, and building construction industries.

Original languageEnglish
Pages (from-to)65-76
Number of pages12
JournalJournal of Mechanical Engineering
VolumeSI 3
Issue number1
Publication statusPublished - 1 Jan 2017

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Kenaf fibers
Tensile properties
Acids
Fibers
Composite materials
Processing
Tensile strength
Elastic moduli
Natural fibers
Polymers
Construction industry

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Effects of fiber content and processing parameters on tensile properties of unidirectional long kenaf fiber reinforced polylactic-acid composite. / Tharazi, Izdihar; Muhamad, Norhamidi; Ismail, Nur Farhani; Radzi, Mohd Khairul Fadzly Md; Razak, Zakaria; Tholibon, Dulina; Akhtar, Majid Niaz.

In: Journal of Mechanical Engineering, Vol. SI 3, No. 1, 01.01.2017, p. 65-76.

Research output: Contribution to journalArticle

Tharazi, Izdihar ; Muhamad, Norhamidi ; Ismail, Nur Farhani ; Radzi, Mohd Khairul Fadzly Md ; Razak, Zakaria ; Tholibon, Dulina ; Akhtar, Majid Niaz. / Effects of fiber content and processing parameters on tensile properties of unidirectional long kenaf fiber reinforced polylactic-acid composite. In: Journal of Mechanical Engineering. 2017 ; Vol. SI 3, No. 1. pp. 65-76.
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