coated Calcium carbonate is the usual Calcium carbonate coated with a thin layer of a fatty acid namely Stearic acid.
the amount of using this acid is about 0.5 to 3% by weight.
Calcium carbonate powder has lubricant property and acts as a waterproof layer.
coated Calcium carbonate is used in rubber, plastic, paints and polymeric materials such as PVC and poly propylene.
there are various kinds of acids depending on usage in rubber or plastic industry.
CaCO3 has diferent applications in various industries and is most widely used as fillers. in the past, this material was used for construction and shelter building.
coated Calcium carbonate has numerous applications in polymers, because basically it is a mineral and is used as filler in plastic and polymeric material production and as a result, cuases faster decomposition in nature and prevents environmental pollution.
Calcium carbonate is not normally polymerized with polymers which result in many lumps in it’s composition. however, using Stearic acid for external coating makes quasi –organic property and polarization which in turn causes binding molten polymer to Calcium carbonate.
properties of coated Calcium carbonate:
- compatibility with a wide range of polymer (synthetic) resins
- hydrophobia
- uniform and controled particle size increase strength and resistance in final product.
- makes product glitter and shine.
- more economic and cost-effective compared with other fillers.
- softening and anti dust absorption
