Supercritical Carbon Dioxide Foaming Extruder
Next-generation foaming technology enabling fine foaming with superior solubility in resins
In recent years, industries such as automotive and home appliances have demanded the development of communication cables capable of transmitting large amounts of data with low noise, driven by the dramatic advancement of IT and IoT. This technology was developed to address these requirements by utilizing carbon dioxide in a supercritical state and refining bubbles to achieve the miniaturization of foamed cables.
*This development is based on the Strategic Core Technology Advancement Support Program (commonly known as Sapoin) FY2015 selected R&D project.
In recent years, industries such as automotive and home appliances have demanded the development of communication cables capable of transmitting large amounts of data with low noise, driven by the dramatic advancement of IT and IoT. This technology was developed to address these requirements by utilizing carbon dioxide in a supercritical state and refining bubbles to achieve the miniaturization of foamed cables.
*This development is based on the Strategic Core Technology Advancement Support Program (commonly known as Sapoin) FY2015 selected R&D project.
Product Features
- There are two gas injection methods, one that uses a melting unit and the other that injects directly from the cylinder. We can propose depending on the application, resin, extrusion shape, etc.
- Solubility in resin is about 5 times more than that of nitrogen gas.
Polypropylene resin Meltability at 200 ° C/15MPa 10% (N2 gas: 2%)
- Since the bubble diameter is 10 to 50 μm that ultra-fine foaming is possible, the coating surface is smooth and the cable has excellent flexibility.
※Bubble diameter during chemical foaming: around 200-500 μm, Bubble diameter during N2 gas foaming: around 50 μm
- The gas injection pressure is 20 MPa (MAX. 30 MPa) for normal operation, allowing injection at lower pressure compared to nitrogen gas, ensuring safe use.
*N₂ gas injection pressure: 50 MPa (MAX. 70 MPa)
