Hujiang brand calcined kaolin is made by advanced equipment of America and Britain,the products are produced through super-fine grinding and calcination,The crystalline type of the products is phantom-hexagonal, porous and flaky with the pore space rate about 75%. it is good plasticity,bonding,dispersibility,insulation,sintering,flame retardant,anti-fire,adsorption,weather stability,chemically stability, hiding power.It is used in paper coating,paper filler,plastic,rubber, wires and cables,mapping,road marking and powder coatings.
1、Main standard
|
Chemical composition |
Kaolin/ Calcined |
|
Appearance |
White Powder |
|
Package |
25kg weaven bag/kraft paper,1000kg big bag |
|
Characteristics |
It is made by advanced equipment of America and Britain,the products are produced through super-fine grinding and calcination,The crystalline type of the products is phantom-hexagonal, porous and flaky with the pore space rate about 75%. it is good plasticity,bonding,dispersibility,insulation,sintering,flame retardant,anti-fire,adsorption,weather stability,chemically stability, hiding power. |
|
Application |
paper coating,paper filler,plastic,rubber, wires and cables,mapping,road marking and powder coatings. |
2、Specification
|
No |
Item |
Unit |
Index |
|
325 Mesh-800 Mesh |
1250 Mesh -6000 Mesh |
|
1 |
Whiteness |
％ |
90±2 |
93±2 |
|
2 |
Residue on Sieve 325 mesh |
％ |
≤ 0.1 |
≤0.05 |
|
3 |
Refractive index |
％ |
1.55 |
1.65 |
|
4 |
Moisture |
％ |
≤0.6 |
≤0.5 |
|
5 |
PH Value of aqueou suspension |
|
6.5-7.2 |
6.5～7.5 |
|
6 |
Oil absorption |
％g/100g |
50±5 |
68±5 |
Fineness：325 Mesh 、400 Mesh 、600 Mesh 、800 Mesh 、1250 Mesh 、2000 Mesh
3000 Mesh 、6000 Mesh |
Chemical index
|
SiO2(%) |
Al2O3(%) |
Fe2O3(%) |
TiO2(%) |
CaO(%) |
MgO(%) |
K2O(%) |
Na2O(%) |
MnO(%) |
|
52±2 |
45±2 |
＜0.4 |
＜1.0 |
＜0.4 |
＜0.2 |
＜0.04 |
＜0.1 |
＜0.005 |
|
Barium sulfate