CO₂/N₂ Gas Doing Unit

Feininger CO₂&N₂ Gas Dosing Unit

The micro-supercritical CO2/N2 injection system equipment uses CO2 as a blowing agent and is injected into the barrel screw by a high-pressure injection pump. During the extrusion, the volume flow rate and pressure of CO2 gas should be kept constant. After the shear mixing of the screw and the convection and diffusion of the gas, the polymer supercritical state is formed in the barrel.

Key features

Feininger microtype supercritical CO2/N2 injection system equipment, CO2 as blowing agent is injected into the barrel screw by high pressure injection pump, during the extrusion to keep the volume flow rate and pressure of CO2 gas constant, through the shear mixing of the screw and gas convection, diffusion, polymer in the barrel to form a supercritical state, after reaching the head of the supercritical CO2 injection equipment, The pressure drop supercritical carbon dioxide production line, separation occurs, rapid nucleation, after cooling can be formed.

Applications

This new CO2 foam technology can be used for PS foam lines, EVA sofa mattress bags and bags piping, TPU sole production.