Additive Masterbatch are used in a wide variety of application. For any type of plastic product, it needs at least two type of additives to modify the physical or chemical properties, such as flame resistance, thermal stability or weather resistance.

USEON design the extruders for additive masterbatch, according to your request.

Filler Masterbatch

Applications

a) Multilayer Films and Sheets

Polyolefins, PVC, PS, PA, PET, CPP, BOPP, BOPET and BOPA.

  • Anti-oxidant

  • Anti-slip
  • Anti-static
  • Anti-fog

  • Anti-block

  • IR absorbers

  • Gas absorbers

  • Gas barriers

  • Slip

  • UV stabilizers & absorbers

  • Anti-root

  • Anti-rodent

  • Processing aid

  • Optical brightener

  • Biodegradable additives

b) Engineering Plastics

SAN, ABS, PET, PBT, POM, PMMA, PA6, PA66, PC & all reinforced and modified polymers used in injection and extrusion applications.

  • Anti-static
  • Anti-oxidant
  • Flame retardant
  • Laser marking
  • Mould release
  • Processing aid

  • UV stabilizers and absorbers

c) PET

APET, PETG, CPET & RPET used in injection moulding and extrusion and thermoforming applications.

  • Anti-block

  • Anti-oxidant
  • Anti-scratch

  • Chain extender

  • Gas barriers

  • IR absorbers

  • Mould release

  • Optical brightener

  • Processing aid

  • UV stabilizers and absorbers

d) Rigid PVC

Window profiles, Sills, Panels, Sidings, Gutters and Pipes.

  • Anti-oxidant
  • Mould release
  • UV stabilizers & absorbers

e) 3-Layer PE Coating for Steel Pipes

  • Anti-oxidant
  • Adhesive

  • Maleic Anhydride (MAH) Grafting

  • UV stabilizers & absorbers

Processing of Additive Masterbatch

a) Feeding System

There are two types of feeding system:

Premix process with volumetric feeder

  • Weight the raw material separately according to the formula
  • Then put all the material into high speed mixer for 5~10minutes mixing
  • Discharge the material into spiral loader
  • Loading the material into the hopper of volumetric feeder

Split feeding by Loss-in-weight feeder: (automatically and higher accuracy)

  • Put the raw material into each tank on the ground.
  • Vacuum loader or liquid pump will convey each component into the storing silo.
  • The raw material will fall into the loss-in-weight feeder automatically. The feeding system will feed the material separately into extruder according to your formula setting one the HMI.

There are three type of Loss-in-weight feeder for liquid, pellet and powder form material.

Some additives are sensitive to shearing, so the best process is thus split-feed– feeding into the fifth barrel of extruder by side force feeder. Side force feeder is with water cooling jacket for some additive powder with low melting temperature

Loss-in-weight Feeder for Liquid

Loss-in-weight Feeder for Liquid

Loss-in-weight Feeder for Pellet

Loss-in-weight Feeder for Pellet

Loss-in-weight Feeder for Powder

Loss-in-weight Feeder for Powder

Side Force Feeder

Side Force Feeder

b) Technical Specifications of Extruder

One extruder should can product many type of additive. So it needs fast cleaning type strand die plat for change of formula.

The bulk density of additive is less, so the output is mostly depends on the feeding capacity, not the torque of main motor. So our EC series twin screw extruder is more better for this process.

Technical Specifications of Extruder:

ModelDiameter
(mm)
Max. Speed
(rpm)
Motor
(kW)
L/DOutput
(kg/hr)
EC40416003040-4870-100
EC5251.46005540-48130-200
EC6562.46009040-48200-300
EC7571.460013240-48400-500

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