Bamboo Wear and Its Application in Friction Material

Abstract

Sliding wear behaviour of bamboo (Phyllostachys pubescens) was investigated in the cases of dry friction. The wear volume of bamboo was a function of the sliding velocity, the normal load and the relative orientation of bamboo fibres with respect to the friction surface. And tribological properties of the Bamboo Fiber Reinforced Friction Materials (BFRFMs) were tested on a constant speed friction tester. The results showed that the wear volume increased with the increase of sliding velocity and normal load. The normal-oriented specimens (N-type) showed sound wear resistance in comparison to the parallel-oriented ones (P Sand P I-type), and the outside surface layer (P S-type) showed sound resistance in comparison to the inner later (P I-typ). The friction coefficient of BFRFMs (reinforced with 3 wt.%, 6 wt.% and 9 wt.% bamboo fibers) were higher than those of the non-bamboo fiber reinforced friction material with identical ingredients mixed with and process conditions during the temperature-increasing procedure. The friction coefficients of the specimens containing 3 wt.% bamboo fibers were higher than that of other specimens. The wear rate of BFRFMs increased with the increasing of test temperature, and the wear rates of specimens containing 3 wt.% bamboo fibers were lower than that of others specimens.

Effect on the Properties of Brake Pads of Recycling Dust as Filler

“…Friction and wear tests were carried out at temperatures of 100, 150, 200, 250, 300, and 350 o C, . The friction coefficients (μI(i)) (under the temperature-increasing condition) were automatically recorded [8] until the disc had rotated 5000 times. After finishing the measurements up to the highest temperature, the friction coefficient (μD(i)) and specific wear rate (V(i)) were again obtained with the disc decelerated to 1500 rotations at every step as the test temperature cooled down to 50 o C. The thickness was measured after cooling the specimens down to oom temperature.…”