▎ 摘　　要

NOVELTY - Polyurethane elastomer composite material comprises 100 pts. wt. polyol, 10-70 pts. wt. diisocyanate, 0-50 pts. wt. chain extender, 0-25 pts. wt. cross-linking agent, 10-20 pts. wt. antimony compound, 0-25 pts. wt. graphite derivative and 0-35 pts. wt. fibre. USE - The polyurethane elastomer composite material used in the industrial field of serious abrasion problem, and in mining, petroleum and natural gas industry. ADVANTAGE - The polyurethane elastomer composite material has high wear-resisting property, high hardness, high elasticity and other mechanical properties, and improved wear-resistant performance. The method is simple, environment-friendly, and avoids using nano-sized micro particles, avoids environmental pollution, and is more suitable for industrial application and popularization. The material can be widely applied to the bearing lining, damping pad, and sealing piece and so on manufacturing production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing polyurethane elastomer, which involves dispersing and mixing polyol and graphite derivatives to obtain graphite-doped polyol, and then carrying out prepolymerization reaction on the graphite-doped polyol obtained in the step and diisocyanate under a protective atmosphere to obtain a graphite-doped prepolymer, blending and stirring antimony compounds and the prepolymer uniformly, then adding fibers and stirring uniformly to obtain a composite prepolymer, under the stirring condition, adding a chain extender and a cross-linking agent into the composite prepolymer obtained in the step, and stirring and mixing to obtain a mixture and pouring the mixture obtained in the step into a mold, and carrying out polymerization reaction, curing and molding to obtain the polyurethane elastomer composite material.