Hujiang brand calcined kaolin(for coating) is made by advanced equipment of America and Britain with surface treated,it is characterized by super-fine particle size,high viscosity,good electric instlation and good thermal stability which contribute to the improvement in tear-resistance,wear-resistance reduction of heat generation and deformation resistance under pressure. It is easy to produce sizing material to which modified kaolin is applied and the surface pressed is smooth Furthermore,it can increase the viscosity of the sizing material and decrease the shrinkage rate.Consequently,it is the first-chosen reinforcing packing producing the intermediate and high tension insultation rubber products.It is used in middle,high-voltage cables,plastics,rubber,high-insulating rubber.
1、Main standard
|
Chemical composition |
Kaolin/ Calcined –for coating |
|
Appearance |
White Powder |
|
Package |
25kg weaven bag/kraft paper,1000kg big bag |
|
Characteristics |
It is made by advanced equipment of America and Britain with surface treated,it is characterized by super-fine particle size,high viscosity,good electric instlation and good thermal stability which contribute to the improvement in tear-resistance,wear-resistance reduction of heat generation and deformation resistance under pressure. |
|
Application |
Middle,high-voltage cables,plastics,rubber,high-insulating rubber |
2、Specification
|
No |
Item |
Unit |
Index |
|
1 |
Activity Index |
％ |
≥90 |
|
2 |
Residue on Sieve 325 mesh% |
％ |
≤0.05 |
|
3 |
Bulk density |
（T/ m3）％ |
0.3±0.1 |
|
4 |
Moisture |
％ |
≤0.5 |
|
5 |
PH Value of aqueou suspension |
|
6.0-8.0 |
|
6 |
＜2um assay |
％ |
78-83 |
Chemical index
|
SiO2(%) |
Al2O3(%) |
Fe2O3(%) |
TiO2(%) |
CaO(%) |
MgO(%) |
K2O(%) |
Na2O(%) |
L.O.L(%) |
|
50±2 |
45±2 |
≤0.5 |
≤1.0 |
≤0.2 |
≤0.2 |
＜0.1 |
＜0.15 |
＜0.5 |
|
Barium sulfate