Utilization of Corn Cob Waste as an Alternative Composite Material of Motorcycle Non-asbestos Brake Lining

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Abstract
One of the safety factors in riding a motorcycle is the braking system in which the brake lining plays an important role in the braking performance, therefore, application of an appropriate brake lining material which gives a low brake lining wear value is a must. The objective of this study is to evaluate the effect of brake lining material compositions on the value of brake lining wear. The brake lining was made from a mixture of corn cob powder, Al2O3, BaSO4, and polyester resin with a certain composition. The brake lining wear value was then determined by the Ogoshi wear testing by varying the material compositions. The brake lining wear values were then compared to those obtained from the brake linings existing in the market, e.g. Texiar. The results show that the higher the concentration of the corn cob, the better the value of the brake lining wear. This is due to the nature of the corn cob that gives less wear value compared to Al2O3. It was found that the brake lining wear value of 2.8 × 10−9 mm2/kg, corresponding to the brake lining wear value of Texiar, was achieved at which the compositions of the corn cob powder, Al2O3, BaSO4, and the polyester resin are 30, 30, 20, and 20 wt%, respectively. The result indicates that variations in the composition of constituent material have an influence on the brake lining wear value.

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