Continuous dynamic and efficient devolatilization method for polymer/volatile system based on high mass transfer interfaces

A continuous dynamic and efficient devolatilization method for a polymer/volatile system based on high mass transfer interfaces, comprising the following steps:

• providing a dynamic single-screw devolatilizer, wherein the dynamic single-screw devolatilizer comprises a rotating single screw and a housing;
• feeding a polymer solution to the dynamic single-screw devolatilizer, wherein the polymer solution comprises polymer and volatile substances, and the volatile substances comprise organic solvents, residual monomers, water, or reaction by-products;
• conveying and compressing polymer materials by the rotating single screw downstream of a devolatilization section, and extruding the polymer materials out of the dynamic single-screw devolatilizer directly;
• or
• providing a side-feeding extruder downstream of a devolatilization section and feeding plastic additives into a devolatilized polymer melt, and then melt blending the plastic additives with the devolatilized polymer melt at an end of a dynamic single-screw devolatilizer before exiting the dynamic single-screw devolatilizer;
• wherein the dynamic single-screw devolatilizer is sequentially configured with a driving motor and a reduction gearbox, a rear venting section, a feeding section, a first-stage stripping section, a first-stage devolatilization section, a second-stage stripping section, a second-stage devolatilization section, a third-stage stripping section, a third-stage devolatilization section, and a conveying/mixing section from a rear end to a front end of the dynamic single-screw devolatilizer.