Effect of Water on Friction and Wear Performance of Bamboo Fiber Reinforced Resin Matrix Composites

Abstract

Bamboo fiber reinforced resin matrix brake materials were selected as research object, dry and wet friction experiment was conducted on MM200 abrasion tester. Results show that: friction coefficient drops down to a very low level under wet condition, wear rate of samples and counterparts also decreases, but the values of friction coefficient are still in the range of dry friction. Under dry and wet conditions, the tribilogical performance of sample has different relationships with the pressure and speed, especially with the speed. Friction surface was lubricated and cooled by water, in the meantime, the formation of friction film is suppressed, which leads to the differences of the tribilogy performance between dry and wet conditions. Morphologies of fricion surface was observed by SEM, worn surface in wet braking was not covered by friction film, many fine cracks and some patches were scattered over the substrate.