Chemical upgrading recovery method of polystyrene plastic

• Main Authors: SUN XIAOLI, WAN WENMING, CHEN CHENXI
• Format: Patent
• Language: Chinese; English
• Published: 18.02.2025
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

The invention discloses a chemical upgrading recovery method of polystyrene plastics. The method is based on Friedel-Crafts reaction (Friedel-Crafts Reaction), and a class of multicolor polymer fluorescent materials with conventional luminescence property and aggregation-induced emission (AIE) property are obtained. Polymer materials with different fluorescence colors can be obtained by regulating and controlling the reaction ratio and reaction temperature of the polystyrene plastic and the catalyst, and the adjustable emission wavelength is realized. The chemical upgrading recovery method of the polystyrene plastic has the characteristics of wide raw material source, simple operation process, low cost, easiness in large-scale production, stable property and the like. The obtained multicolor fluorescent polymer material has strong fluorescence and high quantum yield in a solid powder state or a solution state, and has better application prospects in the fields of plastic recovery, plastic modification, plasti