The Effect of Nanoclay and Carbon Nanotubes Addition on Fracture Toughness Properties of Chopped Kenaf Fibres Reinforced Composites
Aidah Jumahat1, Napisah Sapiai2, Muhammad Aizat Aminuldin3 and Anizah Kalam4
1Aidah Jumahat, Faculty of Mechanical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia.
2Napisah Sapiai, Faculty of Mechanical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia.
3Muhammad Aizat Aminuldin, Faculty of Mechanical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia.
4Anizah Kalam, Faculty of Mechanical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia.
Manuscript received on 10 April 2019 | Revised Manuscript received on 15 May 2019 | Manuscript published on 30 May 2019 | PP: 3196-3200 | Volume-8 Issue-1, May 2019 | Retrieval Number: A1480058119/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In this study, the chopped kenaf fibres composites were incorporated with 1wt%, 3wt% and 5wt% of nanoclay and 0.5wt%, 1.0wt% and 1.5wt% of carbon nanotubes (CNT). The composites samples were fabricated using a combination of three roll milling and hand lay-up processes. The fracture toughness test was conducted according to ASTM D5045. The addition of the nanoclay and CNT significantly enhanced the fracture toughness properties as well as critical stress intensity (KIC) and critical strain energy (GIC) of the composites. In particularly, the results show that chopped kenaf fibres composites incorporated with 1wt% of nanoclay (1NCKF) and 0.5 wt% of CNT (0.5CNTKF) exhibited the highest fracture toughness properties of about 50% and 19%, respectively as compared to pure chopped kenaf fibres. However, it was found that the addition of CNT more than 0.5wt% (1CNTKF and 1.5CNTKF) decreased the (KIC) and (GIC) properties as compared to pure kenaf composites.
Index Terms: Nanoclay, Carbon Nanotubes, Chopped Kenaf Fibres Composites, Fracture Toughness
Scope of the Article: Properties and Mechanics of Concrete