Investigations on wear and frictional properties of kenaf fibre polyurethane composites under dry and wet contact conditions

Singh, Narish and Yousif, B. F. and Rilling, Dirk (2011) Investigations on wear and frictional properties of kenaf fibre polyurethane composites under dry and wet contact conditions. International Journal of Precision Technology, 2 (4). pp. 375-387. ISSN 1755-2060

Abstract

In this paper, an investigation was conducted to understand the wear and frictional properties of kenaf fibre reinforced polyurethane composites. The effect of applied loads (30 to 80 N), sliding distance (up to 2.7 km), and fibre orientation [i.e., parallel (P-O), anti-parallel (AP-O) and normal (N-O)] were determined under dry and wet contact sliding. Specific wear rates for all fibre orientations improved under wet contact except parallel orientated composites. Presence of water in wet sliding has significantly reduced the friction coefficient compared to dry sliding besides acting as a cooling agent. A scanning electron microscope (SEM) was used to study the worn surfaces and wear mechanism encountered. The predominant wear mechanism observed under dry sliding was micro-cracks, plastic deformation and thermo-mechanical deformation. Meanwhile, the worn surfaces under wet contact are very minimal, namely micro-ploughing at elevated sliding distances.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to published version due to publisher copyright policy.
Depositing User: Dr Belal Yousif
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 26 Mar 2012 10:26
Last Modified: 03 Jul 2013 01:00
Uncontrolled Keywords: adhesive wear; kenaf fibre; polyurethane; wet contact; water lubrication; friction
Fields of Research (FOR2008): 09 Engineering > 0913 Mechanical Engineering > 091309 Tribology
09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
07 Agricultural and Veterinary Sciences > 0705 Forestry Sciences > 070509 Wood Fibre Processing
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: doi: 10.1504/IJPTECH.2011.044904
URI: http://eprints.usq.edu.au/id/eprint/20515

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