Calcined kaolin with special properties
for wire and cable
Calcined kaolin with special properties
for wire and cable
I. Product Description
GB-CK88A is an engineered and struchared semkalcined kaolin for PVC and ethylene-propylene coplymer insulated wires and cables featuring high insulation property
II. Application information
GB-CK88A is recommended for use in wires, cables, as well as rubber and tyres. GB-CK88A imparts excellent insulation, low residue and salt content, and stable quality to the mixture to which it is added. In terms of volume resistivity, GB-CK88A has superior advantage. When used in formulation at different mixing rates with CaCo3, its VR still maintains at relatively high value and obviously improve cost competitiveness.
III. Strengths
●High volume resistivity and excellent insulation property;
●Excellent dispersion to help extend pigments and additives;
●Excellent resistance to voltage and effective reduction on line loss rate, long term dielectric stability due to its low free moisture content;
●Special platy structure to prevent free ions from entering jackets and prevent jackets from degrading, therefore improving aging performance of wires and cables.
●Excellent color to reduce cost.
IV. Typical Physical Properties
Item | GB-CK88A |
Physical Form
| Highly Pulverized Powder
|
Special process
| Dehydroxylation by precisely-controlled heat
|
Specific Gravity(g/cm3)
| 2.6
|
Median Particle size(μm)
| 0.7
|
ISO Brightness(%)
| ≥88
|
Screen Residue, 325 Mesh (%) | <0.005
|
Free Moisture @105 deg C (%) as produced | ≤0.5
|
pH (28% solids)
| 6.0-7.0
|
Volume resistivity before immersion at 20 ℃ (Ω.cm)
| 8×1012
|
V. Typical Chemical Properties
SiO2 (%) | Al2O3 (%) | Fe2O3 (%) | TiO2 (%) | CaO (%) | MgO (%) | CuO (%) | K2O (%) | Na2O (%) | MnO (%) |
52 +/-2 | 45 +/-2 | 0.50 max | 1.5 max | 0.4 max | 0.2 max | 0.004 max | 0.05 max | 0.15 max | 0.004 max |
The above typical properties are for general information only and should not be used for specification purposes. Performance characteristics may vary depending on specific application. All products should be tested in customer's formulation prior to use.
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