| 摘要 |
The present invention relates to an extrusion line for reactive foam extrusion comprising a primary extruder (1) having a hopper (5) for loading of raw materials into feeding zone of the primary extruder (1), and further comprising a gas injector (7) being arranged in the primary extruder (1), and an extrusion die (9). A side feeding equipment (6a, 12, 16) for loading of reactive additives into the primary extruder (1) is positioned between the feeding zone of the primary extruder 1) and the gas injector (7). The invention further relates to a reactive extrusion process to produce foamed cellular material comprised of a thermoplastic polymer using the above mentioned extrusion line, wherein the thermoplastic polymer is fed into the hopper (5), while reactive additives are loaded into the primary extruder (1) by using a side feeding equipment (6a, 12, 16) located between the feeding zone of the primary extruder (1) and the gas injector (7). |
