Description
Foaming Nucleating Agent In Gas-injection Applications is a masterbatch for use as a nucleating agent in gas-injection applications. It is specially designed for easy incorporation into insulation raw material compound for processing Physical Foaming Insulated RG series coaxial cables. The compound consists of base resin and more than 4 kinds of other supporting agents such as Stabilizer, Activator, foamable antioxidant and expander. When used correctly, it allows the formation of small, uniformly distributed cells.
While the exact temperature profile required will depend upon the screw design and construction being made, the following extrusion temperature profile represents a good starting point:
Feed Zone : 140 ℃to 150 ℃
Transition Zone : 170 ℃to 180 ℃
Gas injection point : 170℃ to 190 ℃
Metering Zone : 140℃ to 170 ℃ (depending on insulation diameter)
Crosshead and die : 130℃ to 190 ℃ (depending on insulation diameter)
