Application for all kinds of plastic modification extruders:

Features & Advantages  ii

(3) The mixing, shearing, and kneading segments block have a geometric shape that has a spiral of the spiral block and the same direction of rotation, so that the spiral has a good material distribution and mixing ability, suitable for mixing operations.  After the material enters the barrels after softening and melting, the twin screw in the meshing position in the opposite direction, a screw will pull the material into the meshing gap, and another screw will push the material out of the gap, so the material is transferred here by a screw to another screw, as “∞” movement.  This movement has a large relative speed at the meshing position, which is very conducive to the mixing and homogenization of materials.  Moreover, the gap in the meshing area is very small, and the speed of the thread and groove at the kneading point is opposite, which has a high shear effect, to achieve the uniform plasticization effect.

(4) The materials are melted in the barrels’ side by the barrels’ heaters heating, in the meantime, the materials will go ahead by the screw segments and shafts co-rotating (two shafts with screw segments rotating) the twin screw extruder is a dynamic reactor with reactive capacity. A series of chemical reactions, such as polymerization and grafting. Reactive extrusion processing is mainly used for the polymerization of monomers or oligomers: addition polymerization, polycondensation, free radical polymerization, and copolymerization; degradation of polyolefins and Controllable crosslinking; Graft modification of polymer: polar grouping of polymer or functionalization to achieve the purpose of material modification and preparation of compatibilizer; Forced blending modification of various materials. It also includes psical modification of materials, such as filling, mixing, toughening, and strengthening.