Specifications
Refractory Calcined Kaolin Clay1. AL2O3:40%-48%.
2. High refractoriness.
3. Physicochemical stability.
Refractory Calcined Kaolin Clay
Introduction : calcined kaolin made from kaolin material , (Kaolin divided into from industry:Hard kaolin,Soft kaolin,Sandy clay) ,Calcined kaolinclayiscalcinedto a certain temperature deep-processing products inthe calciner , Calcinedkaolincalcinedduringdehydration andthe volatiles were removed,Firedat different temperatureswithdifferent physicalproperties ofacalcined kaolin .
Physical Properties
Whiteness | Oil Absorption | PH | Moisture |
92% | ≥62% | 6.5-7.5 | ≤0.5% |
Chemical indicators
SiO2 | Al2O3 | Fe2O3 | TiO2 |
≥28%-37% | ≤48%-56% | ≤0.35%-3% | ≤0.1-0.5% |
Main using :
1)In paper industry: Calcined kaolin are widely used paper coatings and fillers
2)In rubber industry: mainly use as a Reinforcing agent and filler used ,rubber product can be improved Solvent resistance and abrasion resistance
3) In plastics and cable industry: Plastics can effectively improve the strength and modulus of resistance ,Without reducing the ductility and impact strength,Can also improve the performance of products.
4). In polyvinyl chloride(PVC)cable insulationouter: PVC plastic product can exponentially increase the volume resistivity And inexpensive,In thePVC flooring productcanimprove performance andsurface gloss
5) In nylon: To improve its deflection and tensile strength,In film and tape use as an Anti-clogging agent,In plastic sheeting to use as adsorbent, etc .