Tribological Evaluation of the Developed Eco-Friendly Agro-Residues Composite Brake PadsPages 457-463
Mojeed Okunlola Abstract:
Braking in an automobile is very important, as the lives of the drivers, passengers, and road users are in danger when failure occurs. The brake pad is the essential component of the disc braking system that controls or regulates the movement of the vehicle in motion. Brake pad friction material consists of composite materials with different functions with specific percentages; hence, this work employs seashell as structural material, sawdust as fillers, palm kernel shell as abrasive, charcoal as friction modifiers or lubricant, and epoxy resin as binders using three sieve ranges (400-300 µm, 300-250 µm, and 400 µm and below). Tribology is a major determinant of a good friction material as it evaluates the wear characteristics, absorption, and coefficient of friction. The wear resistance is determined in the laboratory using the pin-on-disc method with the wear apparatus, while the absorption and coefficient of friction are usually conducted via Archimedes’ principle and inclined plane apparatus, respectively.
The coefficient of friction of the three main brake pads produced are 0.416, 0.347, and 0.372, the water/oil absorption of 0.992/0.804, 0.756/0.614, and 0.851/0.898, and wear rate/resistance of 0.1164/0.8593, 0.1668/0.5993, and 0.3252/0.3075 for sample A, B, and C respectively.
Keywords: Agro-residue,
Brake pad,
Composite,
Friction material,
Tribology
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