The invention discloses a recycling and utilization method of waste rigid polyurethane foam plastics. The method comprises crushing waste rigid polyurethane foam plastics into particles passing through a 60-mesh sieve, adding paste detergent at a mass ratio of waste rigid polyurethane foam particles to paste detergent of 1:0.2～0.6, stirring evenly in a screw conveyor, and packaging to obtain a detergent for cleaning oil stains or dirt-contaminated stainless steel products. By mixing waste rigid polyurethane foam particles with detergent, the invention effectively improves the friction performance in skin contact and oil adsorption capacity. Meanwhile, the particles are brittle and soft without causing skin damage. The advantages of the invention are as follows: on the one hand, waste rigid polyurethane foam plastics are recycled and utilized; on the other hand, a detergent highly suitable for automobile maintenance workers and mechanical repairmen is developed, realizing effective waste recycling.

Area Code: CN

Application Number: CN201210529586.1