GSCK Superfine Calcined Kaolin Powder
The GSCK is made of choice kaolinite by the process of deferrization, fragmentizing, calcinating and classification. Because of its good adhesion ability, high whiteness, well particle distribution and strong ability of cover, the GSCK can be used in industrial filler, paints and stretching agents. SC-90 is especially used in paper painting technique, improving papers lightness and opacity. It can replace some high cost filling paints as TiO2.
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Physical Data
|
Components
|
|
Specification
|
SC-90
|
SC-80
|
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SC-90
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SC-80
|
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Granularity(-2μm, %)
|
88±2
|
80±5
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Al2O3
|
44±1%
|
44±1%
|
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Whiteness%
|
92
|
90
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SiO2
|
53±1%
|
53±1%
|
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Loss on grinding mg(AS480)
|
14
|
15
|
Fe2O3
|
0.45%
|
0.45%
|
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pH
|
6.5~8.5
|
6.5~8.5
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K2O+Na2O
|
0.3%
|
0.3%
|
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Densitykg/m3
|
180~330
|
330
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CaO+MgO
|
0.3%
|
0.3%
|
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Riddling% (325mesh)
|
0.003
|
0.003
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TiO2
|
0.55%
|
0.55%
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Water content %
|
1.0
|
1.0
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|
|
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Oil-absorption rate %
|
60
|
60±5
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|
|
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Viscosity of 61% dispersing fluid (60rpm)(NDJ-5S)cp
|
150
|
160
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Characteristics
|
Components
|
|
Fineness(mesh)
|
600
|
800
|
1250
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Al2O3
|
45.5±1%
|
|
Riddling (+325 mesh%)
|
0.5
|
0.04
|
0.02
|
SiO2
|
52±1%
|
|
Whiteness
|
85
|
90
|
90
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Fe2O3
|
≤0.7%
|
|
Water content
|
≤1.0%
|
≤1.0%
|
≤1.0%
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TiO2
|
≤0.6%
|
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Specific gravity
|
2.7
|
2.7
|
2.7
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K2O+Na2O
|
0.25%
|
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pH
|
6~8
|
6~8
|
6~8
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CaO+MgO
|
0.65%
|
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Refractoriness
|
≥1770
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≥1770
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≥1770
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GSK kaolin powder
The GSK is made by the way of dry process, including deferrization, superfine, surfacetreatment, and has a well particle distribution. The GSK can be used in rubber and paint oil as filling material, in kinds of ceramics, pesticide carrier, refractory materials, water purifying agent as fundamental raw material. Its specific characteristics are as follows:
1. used in rubber industry as filling material to improve the mechanical intensity and chemical stability of products.
2. its good suspension and dispersing characters make it have good fireproofing ability in paint oil industry.
3. high intensity, well thermal stability, low thermal expansion coefficient, chemical stability and electric insulation after calcinations; it is a kind of good raw material in ceramics, electric porcelain and refractory materials.
4. used as filling material in plastics industry; it can improve the surface smoothness, helpful to polishing and improving the anti-corruption ability of the product.
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Physical data
|
Components
|
|
Fineness(mesh)
|
200
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325
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1250
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Al2O3
|
39±1%
|
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Rate of past sift(μm97%)
|
-43
|
-18
|
-10
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SiO2
|
44±1%
|
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Loss on ignition
|
≤14.5%
|
≤14.5%
|
≤14.5%
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Fe2O3
|
≤0.7%
|
|
Refractoriness
|
1770~1790
|
1770~1790
|
1770~1790
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TiO2
|
≤0.6%
|
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Specific gravity
|
2.6
|
2.6
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2.6
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K2O+Na2O
|
≤0.4%
|
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pH
|
6
|
6
|
6
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CaO+MgO
|
≤0.5%
|
|
|
|
|
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SO3
|
0.03%
|
|
|
|
|
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P2O5
|
0.25%
|
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MnO
|
0.002%
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Main Chemical Specification (for both 4000 and 6000Mesh )
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Si02
()
|
|
Al203
()
|
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Fe203
()
|
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Ti02
()
|
|
K2O+Na20
()
|
|
Ca0+Mg0
()
|
|
CuO
()
|
|
MnO
()
|
|
|
|
51±1
|
|
46±1
|
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≤0.5
|
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≤0.6
|
|
0.4
|
|
0.5
|
|
0.004
|
|
0.001
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Superfine calcined Kaolin ( 4000 Mesh ,apply to Paint, Gr-80 Series )
GR-80 series of products made from high quality Coal-series Kaolinite, by process of deferrization, fragmentizing, calcinating and classification.The product has the characteristic of superfine size ,high whiteness,with good ductibility,dispersibility and high covering power, especially applied to all kinds of Paint such as Wall Coating , emulsion paint ( latex (water) paint ), could partially substitute Titanium Pigment
Technical Index:
|
|
|
|
|
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WhitenessR457,
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≥92
|
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Size-2μm,
|
80±2
|
|
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45μm Above Sieve
|
≤0.005
|
|
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Oil Adsorption(g/100g)
|
40±5
|
|
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PH Value
|
6.07.0
|
|
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Refractive Index
|
1.62
|
|
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Moisture
|
1.0
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Superfine calcined Kaolin ( 6000 Mesh ,apply to Painting Inks, GR-90 Series)
GR-90 series of products made from high quality Coal-series Kaolinite, by process of deferrization, fragmentizing, calcinating and classification. The product has the characteristics of superfine size,low oil Adsorption,stark coloring power,high Stability, easy to disperse, good thixotropy etc., especially super for the Application of Printing Inks, as Dye and functional Filling Material.
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|
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WhitenessR457,
|
≥92
|
|
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Size-2μm,
|
90±2
|
|
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45μm Above Sieve
|
≤0.003
|
|
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Oil Adsorption (g/100g)
|
45±5
|
|
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PH Value
|
6.07.0
|
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