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1. Benefits and Application
GB-CK88A is an anhydrous aluminum silicate produced by a controlled,high temperature heating of a water-fractionated kaolin.GB-CK88A is specifically designed for use as filler in polyvinyl chloride electrical insulation.
2. Typical Physical Properties
| Item |
GB-CK88A |
| Brightness(T457)% |
86min |
| Particle Size (-2micron,%) |
80+/-2 |
| Refractivity |
1.62 |
| Screen residue (325 mesh %) |
0.005max |
| Oil Absorbency (g/100g) |
60+/-5 |
| Dispersion (micron) |
50max |
| pH |
5.5-7.0 |
| Bulk Density(kg/m3) |
330 |
| Moisture(%) |
0.8max |
3. Electrical Control Test Parts
| PVC |
100 |
| Dioctyl Terphthalate |
50 |
| Cyanuric Acid Lead Stabilizer |
4 |
| Barium Stearate |
1 |
| Compound Lubricant |
1 |
| Activated Calcium Carbonate |
30 |
| GB-CK88A |
10 |
Volume resistivity at 70 degrees centigrade:8.68×10 9Ω.m , Volume resistivity at 20 degrees centigrade:1.42×10 13Ω.m
4. Typical Chemical Properties
| SiO2(%) |
Al2O3(%) |
Fe2O3(%) |
TiO2(%) |
CaO(%) |
MgO(%) |
CuO(%) |
K2O(%) |
Na2O(%) |
MnO(%) |
| 52+/-2 |
45+/-2 |
0.50max |
1.5max |
0.4max |
0.2max |
0.004max |
0.05max |
0.15max |
0.004max |
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