Author:
Dandan Muhammad Arif,Samion Syahrullail,Azman Nurul Farhanah,Mohd Zawawi Fazila,Abdul Hamid Mohd Kameil,Musa Mohamad Nor
Abstract
Purpose
The purpose of this paper is to study the influence of polymeric viscosity improver on the tribological performance of palm kernel methyl ester (PKME).
Design/methodology/approach
Tribological performances of the PKME added with the various concentration of ethylene-vinyl acetate copolymer (EVA) were evaluated using four-ball tribotester under extreme pressure condition. The morphologies of the worn surfaces were observed by using the optical microscope.
Findings
The addition of polymeric viscosity improver (EVA copolymer) has produced positive results towards the tribological properties of PKME. In total, 4 per cent of EVA copolymer is found as the optimum concentration by improving the friction reducing properties and anti-wear behaviour due to the formation of film thickness between two rubbing surfaces.
Originality/value
This work might contribute to the development of vegetable oils as a new source of environmental-friendly lubricant.
Subject
Mechanical Engineering,Mechanics of Materials,Civil and Structural Engineering
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