What are the different types of Masterbatches?
- White Masterbatch
- Black Masterbatch
- Color Masterbatch
- Additive Masterbatch
- Filler Masterbatch
1) White Masterbatch
White Masterbatch is mostly made from TiO2 (titanium dioxide) which is either rutile or anatase. TiO2 is the best whitener available however there are cheaper alternatives like barium sulphate, lithopone and calcium carbonate which can be used either directly or in combination with TiO2 to make a cheaper white Masterbatch. Maximum loading of TiO2 gives the best opacity results as TiO2 has the highest coloring power amongst other whiteners. Best loadings known in the industry are a Masterbatch with 75 - 80% pure TiO2 (for PE carrier). For Engineering plastics, it is better to have lesser loadings of TiO2 in the carrier resin.
2) Black Masterbatch
Black Masterbatch is made with carbon black pigment. Here too several grades of carbon are available for the type of application for which the Black Masterbatch is prepared. Maximum loading possible of carbon in a PE carrier is 50%. For engineering plastics it is difficult to load beyond 30%.
3) Colour Masterbatch
Colour Masterbatches are made in several forms depending on the aesthetic required for the type of plastic it is being made for. These are the possibilities - opaque, transparent, translucent, special effects, etc. Color masterbatches uses TiO2, Organic Pigments, Inorganic Pigments, Dyes, Additives, etc depending on the application and the resin which they are designed for.
4) Additive Masterbatches
Additive Masterbatches can be of several types namely -
- Slip Masterbatches
- Anti-block Masterbatches
- Polymer Processing Aid Masterbatches
- Anti-static Masterbatches
- UV Stabiliser Masterbatches including Green House Film Masterbatches
- Nucleating & Clarifying Agent Masterbatches
- Anti-Warp Masterbatches
- Chemical Foaming Agent Masterbatches (Exothermic & Endothermic)
- Anti-sink Masterbatches for Sink mark removal
- Antimicrobial Masterbatches
- Foam Nucleators for Expanded Polystyrene and Expanded Polyethylene
- Anti-fogging Masterbatches
- Heat stabilizers
- Flame Retardant packages
- Stiffening Agents
- Anti-oxidants
- Optical brighteners
- Anti-Counterfeiting
- Chain Extenders
- Solar Heat Reflection
- Infrared Masterbatches
5) Filler Masterbatch
Filler Masterbatches are usually a combination of Talc / CaCO3 and PE resin (LLDPE or LDPE). These can also be made in PP resin. Filler masterbatches provide cost reduction and also depending on the design of the type of filler Masterbatch, offer better properties such as stiffness, anti-fibrilation, etc.
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