The present invention discloses a method for recycling waste polystyrene foam, characterized by comprising the following steps: Step S1: pretreatment of waste polystyrene foam; Step S2: Preparation of the composite material: Mixing the waste polystyrene foam powder produced in Step S1 with 1-toluenesulfonyl-3-vinyl-1H-indole-5-carbonitrile, polystyrene, foaming agent, octaphenyl-POSS, nano-montmorillonite, initiator, antioxidant, coupling agent, 2-allyl-1,3-dioxoisoindoline-5-carboxylic acid, and Carter's condensing agent to obtain a mixed material. The mixed material is then fed into a twin-screw extruder for extrusion molding to produce the composite material. The waste polystyrene foam recycling method disclosed herein enables efficient, rapid, and safe recovery and reuse of discarded polystyrene foam. It features high recovery rates, low costs, minimal energy consumption, and suitability for industrial-scale application. Products manufactured from recycled material exhibit excellent overall performance, stability, and extended service life.
Country Code: CN
Application Number: CN202111547617.1
