325 Mesh-1250 Mesh Calcined Kaolin Use for Ceramic GlazeSpecification of kaolin
Kaolin is made from kaolin ore, and then crush into different size according to requirements, which can be made into block or as fine as 6000 mesh. The kaolin is divided into washed kaolin clay and calcinated kaolin clay according to different production engineering and application.
Application of kaolin
The kaolin can be widely used for making ceramic products, paper, refractory products, and other products.the size and whiteness will be made according to different application.
Physical and chemical indexes of kaolin
Item | Unit | Washed kaolin | Calcined kaolin | Clay |
SiO2 | % | 45.2 | 53.4 | 63.3 |
Al2O3 | % | 37.5 | 45.06 | 21.7 |
Fe2O3 | % | 0.28 | 0.36 | 0.22 |
CaO | % | 0.81 | 0.24 | 0.04 |
MgO | % | 0.95 | 0.21 | 0.25 |
TiO2 | % | 0.27 | 0.5 | 1.07 |
K2O | % | 0.15 | 0.1 | 0.01 |
Na2O | % | 2.2 | 0.12 | 0.01 |
Whiteness | % | 80-90 | 80-90 | 80-90 |
Loss in ignition | % | 14.13 | | 13.36 |
3.Purity Calcined Kaolin 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 insulation outer: PVC plastic product can exponentially increase the volume resistivity And inexpensive,In thePVC flooring productcanimprove performance and surface 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 .