Assessment of Carbonised Wood-Flour Fillers on the Mechanical Properties of Natural Rubber Vulcanisates
Kevin Shegun Otoikhian 1, Adewale George Adeniyi 2, Ayo Mark Dada 3, Joshua O. Ighalo 2 *
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1 Chemical Engineering Department, Faculty of Engineering, Edo University Iyamho, Edo State, NIGERIA
2 Chemical Engineering Department, Faculty of Engineering and Technology, University of Ilorin, Ilorin, NIGERIA
3 Polymer Engineering Department, School of Engineering, Auchi Polytechnic, Auchi, Edo State, NIGERIA
* Corresponding Author

Abstract

In view of the need to enhance the mechanical properties of vulcanisates, this study evaluated the potentials of carbonised wood-flour in this regard. Samples of wood-flour were carbonised at 600 ℃ and 700 ℃. The characterisation results revealed an increase in the pH (7.14 to 8.99) and loss on ignition (76.32 to 82.04%) of the carbonised wood-flour with increase in the carbonisation temperature. There was also a significant decrease in moisture content (0.21 to 0.15%) and bulk density (0.63 to 0.51 g/ml) with increasing temperature. The mechanical properties of the carbonised wood-flour filled vulcanisates were improved in the domain of tensile strength (6.08 to 10.38 MPa and 7.19 to 12.65 MPa), tensile modulus (2.53 to 3.78 MPa and 2.68 to 3.96 MPa) and hardness (48.25 to 60.55 Shore A and 50.88 to 63.92 Shore A) as carbonisation temperature increases from 600 ℃ to 700 ℃ respectively. Meanwhile, other properties investigated decreased with increased filler loading and carbonisation temperature and these were EAB (501.03 to 312.58% and 460.28 to 309.56%), compression set (18.43 to 12.07% and 15.35 to 8.99%), abrasion resistance (28.65 to 20.53% and 38.24 to 23.06%) and flex fatigue (8.02 to 5.84% and 8.63 to 6.04%) from 600 ℃ to 700 ℃ respectively. The results revealed that carbonised wood-flour is an excellent filler for natural rubber vulcanisates to improve the mechanical properties for specialised applications.

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Article Type: Research Article

https://doi.org/10.29333/ejosdr/5860

EUROPEAN J SUSTAINAB DEV, 2019 - Volume 3 Issue 4, Article No: em0097

Publication date: 23 Jul 2019

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