The invention discloses the application of twin-screw extrusion pelletizing technology in improving the stable operation of twin-screw extruders during the production of copolycarbonate. The invention also provides a twin-screw extrusion pelletizing process for copolycarbonate. Through coordinated regulation of operating parameters, extrusion formula and screw combination for copolycarbonate semi-finished flakes, stable operation of the twin-screw extruder is realized. With this process, copolymer siloxane polycarbonate flakes achieve favorable plasticization inside the barrel, eliminating material splashing at the vacuum sight window. Stable high negative vacuum reduces moisture and small molecular contents, removing internal bubbles in material strips and strip collapse at the die head. Meanwhile, the frequent strip collapse problem of brominated PC during extrusion granulation is completely solved.
Area Code: CN
Application Number: CN202411527042.0
