Friction and wear properties of dumbbell‐shaped jute fiber‐reinforced friction materials

Abstract

The surfaces of jute fibers (Corchorus capsularis L.) were processed to have different dumbbell-shaped spacing (5 mm, 10 mm, 15 mm, and 20 mm), and the physical properties of the modified surfaces of the jute fibers were evaluated in this study. The dumbbell-shaped jute fiber (DJF)-reinforced friction materials were prepared through compression mold. The friction and wear performance of the DJF were tested using a friction material tester at constant speed. The results showed that the dumbbell-shaped spacing has less influence on the friction coefficients of friction materials. The friction coefficients of DJF have bigger fluctuation compared with that of straight fiber during the temperature-increasing procedure. The wear rate of DJF with dumbbell-shaped spacing of 15 mm was the lowest, except for that when the temperatures were about 200-250 C. Morphologies of wear surfaces of DJF were observed using scanning electron microscopy and the friction characteristics were analyzed. The results showed that reinforced with DJFs in the friction materials can reduce the specific wear rate and the variation in friction coefficient compared with that of straight jute fibers.

Effects of Structured Fibre on Mechanical and Tribological Properties of Phenolic Composites for Application to Friction Brakes

“…The treatment of jute fibres was mentioned in a previous published paper of the authors 11 . Jute fibres, purchased from Fuzhou in China, were subjected to the following treatments before using them for reinforcing fibres.…”

“…In order to achieve these excellent practical properties, friction composites are usually composed of more than 10 components, such as reinforcing fibres, high molecular weight binders, property modifiers and other ingredients 6–8 . Among these components of friction composites, the fibres play a very crucial role in determining thermal resistance, mechanical and physical strength, and tribological properties 9–11 .…”

“…Ma et al . 11 investigated the tribological performance of friction materials containing dumbbell-shaped jute fibres. The results indicated that the length of the structure dumbbell-shaped structure had no remarkable effects on the friction coefficients.…”

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Bamboo Wear and Its Application in Friction Material

“…Many researches have focused on the utilization of biological fibers with the function of protecting environment, such as betel nut fibers [13], cotton fibers [14,15], jute fibers [16][17][18], kenaf and ramie fibers [19], sisal and flax fibers [20][21][22], and sugarcane fibers [23]. More and more biological fiber reinforced composite materials have been used as tribological ones.…”