Calcined Kaolin

Specifications
Products Calcined Kaolin
Use Industrial Use
Color White to Super White
Form Powder
Packing Type Plastic Bags
Packaging size 25kgs
Whiteness: 90-94%

Calcined Kaolin is an anhydrous aluminium silicate produced by heating hydrous china clay after water washing to high temperatures in a rotary kiln. The clacination process gives an increase in the original hardness of kaolin and alters the morphology of the kaolin particles completely. When calcination process is done at around 700 deg C, the dehydrogenate of the kaolin is complete, forming a partially crystalline meta kaolin. Fully calcined kaolin products with an amorphous structure are formed around 1000 deg C.



Fully Calcined kaolins can be surface modified with functionalised coupling agent Silane to give a particle coating capable of chemically bonding with the polymer. After surface treatment the dispersion of filler is also improved. In view of the reduced surface activity, calcined kaolins give good reinforcement and permanent set properties, at the same time maintaining very good processing conditions.



The processing techniques at PEEKAY MINERALS ensures consistent quality, low specific gravity, good whiteness and freedom from impurities at pocket friendly costs.





Application:





Rubber & PVC Cable insulation
Paints & Pigments
Paper & Boards
Printing Inks
Ultramarine Blue
Pharmaceutical seals & Gaskets
Rubber Hoses
Rubber Footwear
Speciality plastic films
Engineering thermoplastics
Thermosetting plastics




Features:





Free from impurities
Unique particle size
Lower finish costs
Improving brightness and opacity
Low Bulk Density
Very good process ability