Friction and gasket materials reinforced by new type of compound polyacrylonitrile pulp
The properties of the friction/gasket materials reinforced by a polyacrylonitrile compound pulp,in which the polyacrylonitrile short-cut fiber was uniformly wrapped around by the polyacrylonitrile pulp by a special technology was studied.The short-cut fibers provided the mechanical strength and the highly fibrillated pulp entrapped and held other components and also avoided balling for entanglement between the fibers.The results showed that the friction materials reinforced by the compound pulp had smooth surface, excellent friction and wear properties and the gasket materials reinforced by the compound pulp had high strength, good elasticity and heat-resistance.