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Additive Masterbatch

GSmach offers advanced granulation lines for a wide range of additive masterbatches.

Additive masterbatches are used in a wide range of applications. For any type of plastic product it requires at least two additives to modify its physical or chemical properties, such as flame retardancy, thermal stability or weathering resistance.
We design additive masterbatch extruders to suit your requirements and circumstances.

Applications

  • Improve the physical properties of plastics
  • Improve weather resistance
  • Improve fluidity
  • Increase flame retardancy
  • Provide color and appearance effects
  • Antistatic and conductive
  • Biodegradability
  • Antibacterial and anti-mold agent
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What Twin Screw Extruder Machine You Need ?

GS mach which is a manufacturing vendor, specializing in the twin screw extruder pelletizing line and spare parts, with high quality machine and competitive price.

Technical Specifications of Extruder:

TypeScrew diameter (mm)Power(kw)

Quantity (kg/h)

GS2021.745~15
GS2526115~55
GS3535.61510~40
GS5050.555120~200
GS5251.490270~450
GS6562.490255~400
GS7571132450~750
GS9593315950~1600
GS1351337502250~3750

Applications

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
  • PIB
  • Optical brightener
  • Biodegradable additives

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

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

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

  • Anti-oxidant
  • Mould release
  • UV stabilizers & absorbers
  • Anti-oxidant
  • Adhesive
  • Maleic Anhydride (MAH)
  • Grafting
  • UV stabilizers & absorbers

Processing of Additive Masterbatch

Two types of feeding systems are available:
Pre-mixing processes with volumetric feeders

The ingredients are weighed separately according to the recipe
All materials are then placed in a high speed mixer for 5 to 10 minutes
Discharge of the material into a screw loader
Loading the material into the hopper of the volumetric feeder
Feeding in stages with loss-in-weight feeders: (automatic and more accurate)

Place the material into each trough on the floor
The vacuum loader or liquid pump conveys each component to the storage bin.
The raw material will automatically fall into the loss-in-weight feeder. The feeding system will feed the material into the extruder individually, according to your recipe settings on the HMI.
There are three types of loss-in-weight feeders for liquid, granular and powder materials.

Some additives are sensitive to shear, so the best process is to feed them in stages – via a side force feeder into the fifth barrel of the extruder. The side force feeder is fixed with a water-cooled jacket for melting additive powders with low temperatures.
Additive Masterbatch

One extruder should be able to produce many types of additives. It therefore requires a quick-cleaning type of stranded die plate to change the formulation.

The bulk density of the additives is relatively low, so the output depends mainly on the feed capacity rather than the torque of the main motor. Our twin-screw extruders are therefore better suited to this process.

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