The present invention relates to the technical field of fabrics, in particular to a mild and rapid recovery method for easily decomposable and recyclable polyester fiber fabrics, comprising conveying cloth blocks to a reactive twin-screw extruder through a screw conveyor, and adding an inorganic alkali solution to obtain polyester fragments; conveying the polyester fragments to a screw extruder, adding a glycol-water system dissolved with carbon dioxide to the compression section of the screw extruder, microwave-heating the homogenizing section of the screw extruder, and extruding to obtain an extrudate; putting the extrudate and sodium hydroxide solution into a reaction kettle and stirring continuously. In the present invention, the polyester fragments are extruded into a round tube shape, reducing the bulk density of the polyester fragments, greatly increasing the contact area between polyester fibers and sodium hydroxide solution, and promoting the alcoholysis and hydrolysis of small-molecule polyester fibers. Sodium hydroxide solution acts as a surfactant to enhance alcoholysis and hydrolysis reactions without requiring high alcoholysis and hydrolysis temperatures as reaction conditions, greatly reducing process costs.
Country Code: CN
Application Number: CN202410978327.X
