Abstract
The current work is an attempt to reduce friction coefficient of the treated betelnut fibre reinforced polyester (T-BFRP) composites by aging them in twelve different solutions with different kinematic viscosities. The test will be performed on a pin on disc (POD) wear test rig using different applied loads (5–30 N), different sliding distances (0–6.72 km) at sliding speed of 2.8 m/s subjected to a smooth stainless steel counterface (AISI-304). Different orientations of the fibre mats such as anti-parallel (AP) and parallel (P) orientations subjected to the rotating counterface will be considered. The worn surfaces were examined through optical microscopy imaging and it was found that the aged specimens had significantly lower damages as compared to neat polyester (NP) and the unaged samples. Besides, P-O samples revealed lower friction coefficients as compared to AP-O, i.e., reduction was about 24.71%. Interestingly, aging solutions with lower kinematic viscosities revealed lower friction coefficients of the aged T-BFRP composites when compared to the ones aged in higher kinematic viscosities.
Highlights
In the field of Tribology of Polymeric Composites, the study of friction characteristics is crucial because materials with higher friction coefficient (μ) tend to have poor wear performance and vice versa [1]
A visual examination of Figure 7 indicates a rise in friction coefficient for the aged AP, P and neat polyester (NP) test samples when applied load increases
On the rough surface, i.e., NP test samples, deformation component is predominant while on the smooth surface, i.e., stainless steel counterface, adhesion component is predominant. This could explain the high values in friction coefficient of the aged NP test samples as compared to the aged AP and P test samples
Summary
In the field of Tribology of Polymeric Composites, the study of friction characteristics is crucial because materials with higher friction coefficient (μ) tend to have poor wear performance and vice versa [1]. Faissal and Mohamed [2] investigated the friction scale effect on drilling flax fibre composites. They revealed that the tribo-mechanical behavior of the drilling operation is affected by changing the tool coating at different levels. It could be said that the abrasive wear imposed by the flax fibre composites to the tool wear is low. This can promote high tool life span and save on costs
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