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차준용,이정민,모상영,이재달,배기서,홍영기 忠南大學校 産業技術硏究所 1996 산업기술연구논문집 Vol.11 No.2
Fiber-reinforced composite materials are used in a wide variety of applications in the advanced field of industries such as electric clutch, motor, car, space and aviation etc. It is well known that the brake lining made of fiber-reinforced composites show excellent friction and wear properties compared to the conventional asbestos brakes and also are known to have high absorption energy and excellent high temperature properties in braking. In order to endow high friction and wear stability to the commercial brake lining, the waste fiber such as cotton, PAN, PET, nylon,kevlar, glass and it's binary mixture fibers were used the fiber reinforcements. The fiber/phenolic resin system has been carried out by preform molding method. The friction tester was especially designed and prepared for evaluation of frictional properties such as friction coefficient and stability. The physical properties of fiber reinforced composites were investigated in terms of the 3-point bending strength, the properties of friction, and morphology. The results obtained from the work are as follows ; 1. The friction properties of the cotton fiber reinforced composites were similar to those of the commercial brake linings, but in the cases of reinforcement of kevlar, glass. we can improve those properties, 2. The proper amount of organic and inorganic fiber mixtures can improve the properties of friction and the mechanical properties, 3. It is more desirable to manufacture hybrid fiber reinforced composites because single cotton or synthetic fiber reinforced composites aren't improved frictional properties, and 4. On evaluating frictional properties of waste fiber reinforced composites, frictional properties of waste fiber reinforced composites are superior to commercial disc lining. Therefore we can confirm practical possibility of waste fiber reinforced disc lining.