Additive Masterbatches

Additive Masterbatches

Additive Masterbatches consists of a concentrated mixture of pigments and/or encapsulated additives manufactured through a process of heating a carrier resin and then cooled and cut into a granular form. Thus, the masterbatch allows the transformer to color the natural polymer economically in the plastics processing process.

We have white, colored, black, combi or additive masterbatches (with solid or liquid carriers), which aim at coloring or giving other properties to the plastics – colored or additive masterbatch.

• Technical Advantages | Shelf life

• • Eliminates additive or colorant agglomeration problems, as well as dispersion problems.
  • Contains no solvents and thus has a longer shelf life.
  • It contains, on average, 40-65% additive, however, the range can reach values between 15-80% in extreme cases.
  • A 25 kg bag processes up to one ton of raw material. Thus, the relatively dilute nature of materbatches allows for greater accuracy in dosing small quantities.

• Carrier and Dosage

The carrier of the masterbatch must be polymer identical/compatible. For example, EVA or LDPE is a carrier compatible with polyolefins and nylon, just as polystyrene is used as a carrier for ABS, SAN and sometimes polycarbonates.

In this sense, when the carrier of the masterbatch is incompatible with the raw material, changes in the properties of the transformed material may occur. The converter must specify the characteristics of the raw material. The percentage of use of masterbatches in relation to the raw material is between 1 to 5 %. Color masterbatches and additive(s) may be combined.

• Adverse Effects

Sometimes, adverse effects o occur such as separation of the master batch from the raw material in the machine hopper.

The masterbatch, solid or liquid, is added directly to the machine spindle by a peristaltic pump.

The use of liquid masterbatches also enables highly precise dosing and fast color changes between productions.

• Transformation Processes

Masterbatches are compatible with most processes, with the exception of rotational molding, plastisol and other liquid resin systems.

ADPLAST® provides a wide range of White Masterbatches with a concentration up to 80% titanium dioxide based on PE, PP, PS, PA, ABS and Polyester.

White Masterbatches range is applicable in: labels, lamination, protective films, coating, agriculture, thin-wall packaging, fibers and nonwovens, bottles, injection-molded articles, etc.

Indeed, we have tailor-made solutions capable of achieving excellent quality-performance ratios.

Contact us.