Calcium Carbonate for Adhesive & Sealants Industry

Description:

Precipitated Calcium Carbonate ( PCC ) is an innovative product derived from lime stone, which has many industrial applications. PCC is made by hydrating high- calcium quick lime and then reacting the resulting lime slurry with carbon dioxide. The resulting product is extremely white and typical has a uniform narrow particle size distribution. PCC is available in numerous crystal morphologies and sizes, which can be tailored to optimize performance in a specified application.

Application:

Precipitated Calcium Carbonate is used as a rheology modifier in Adhesive & Sealant Industry in a variety of sealants formulation such as PVC Plastisols, Polyurethane, MS polymers, Polysulphide epoxy and as a chemical additive to add properties the most notable being thixotropy. It has Aragonite structure with different particle size distribution and apparent densities.

Properties:

Application Polyurethane & Polysulphide Epoxy PVC Platisols
Grade Recommended KC – 3 KC – 4
Bulk Density gm/ml (Tapped) 0.74 – 0.83 0.68 – 0.80
Loss on Drying (105*C in 1 hr) 0.5 Max 0.5 Max
Specific Surface Diameter (micron) 0.45 0.40
Average Particle Size D50 6 – 8 5.5 – 6.5
Flow Point (ml/15 gm) 12 – 15 14 – 18
Fineness % (through 45 micron) 99.50 99.50
DOP Absorption (gm/100gm) 26 – 32 30 – 36
Purity as CaCO3 % (min.) 98 98
Crystalline Habit Calcite Calcite

 

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