Regenerating method for waster and old polystrene and regenerated product mode thereby

The present invention relates to a recycling method of blending toughening modified waste polystyrene and the recycling product made by using this method. According to the method of the present invention, 65-80wt% polystyrene with the melt index of 10-25g/10min, 10-20wt% elastomer, 5-10wt% polyethylene with the melt index of 0.05-6g/10min and 5wt% compatibilizer are mixed together, and melted and blended on twin screw extruder under the temperature of 150-210deg.C, to acquire toughening-modified-polystyrene recycling material. The prepared recycling material can replace high impact polystyrene to be used to produce the components of up-and-mid grade household appliances such like computers and air conditioner, while solving the environmental pollution problems, and finding a new way to make use of waste polystyrene.