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Jinyu Kaolin Technology Jiangsu Co., Ltd. 

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Calcined kaolin products with special properties
GB-CK90

GB-CK90

Common calcined kaolin for Rubber

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Product Description

Common calcined kaolin for Rubber

1. Benefits and Application

GB-CK90 is produced from highly refined kaolin by heating at temperature above 1000℃. During calcination, chemical, morphological and mineralogical changes occur.

GB-CK90 imparts excellent electrical insulation properties to low and medium voltage power cables. Because of its porous structure, latex products have better suspension and crosslinking properties.


2. Typical Physical Properties


Item GB-CK90
Brightness(T457) 90.5%min
Particle Size (0-2micron)% 50+/-2
Particle Size (0-10micron)% 94%
Refractivity 1.62
Screen residue (325 mesh %) 0.05max
Oil Absorbency (g/100g) 35+/-5
Dispersion (micron) 55max
pH 5.5-7.0
Bulk Density (kg/m3) 600
Specific Gravity (kg/m3) 2600
Moisture (%) 0.8max


3. 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