Mechanical Properties of Kevlar Reinforcement in Kenaf Composites

Noor Haznida Bakar; Koay Mei Hyie; Ahmad Safwan Ramlan; Mohd Khalid Hassan; Aidah Jumahat

doi:10.4028/www.scientific.net/AMM.465-466.847

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 465-466Mechanical Properties of Kevlar Reinforcement in...

Mechanical Properties of Kevlar Reinforcement in Kenaf Composites

Abstract:

The development of high-performance materials made from natural resources are increasing worldwide in recent years. Natural fibres offer both cost savings and reduction in density when compared to Kevlar fibres. However, the strength of natural fibres is not as great as Kevlar. The following preliminary research investigated the use of Kevlar fibres in kenaf composites as a possible to improve the impact properties. The impact properties of Kevlar reinforced in kenaf composites was studied by using DYNATUP 9250 drop weight machine. According to the standard ASTM D638 Kevlar fibres in different weight percentage of 10,15,20 and 25 wt% were reinforced with kenaf/epoxy composites by using hand lay-up combined with cold-press method. It is clearly observed that the impact strength and hardness were increased with the addition of weight percentage of woven Kevlar in the kenaf composites. The highest energy was recorded at 12.76 J by hybrid composite in combination of 2Kevlar/Kenaf/2Kevlar. The microstructure observation of impacted hybrid samples indicated that the delamination area was increased with the increasing of the impact energy.

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Periodical:

Applied Mechanics and Materials (Volumes 465-466)

Pages:

847-851

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.465-466.847

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Online since:

December 2013

Authors:

Noor Haznida Bakar, Koay Mei Hyie*, Ahmad Safwan Ramlan, Mohd Khalid Hassan, Aidah Jumahat

Keywords:

Epoxy, Hybrid Composite, Impact, Kenaf, Kevlar

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* - Corresponding Author

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