CALCINED KAOLIN FOR COATING (GB-CK60/90/92)

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
12000 m.t./month

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Product Description:

1. Benefits and Application

The GB-CK series of Kaolin based pigments are produced through delamination, 

calcination and classification. The well-controlled processes ensure the GB series have no coarse particles and maintains an absolute minimum of 325 mesh residue, so the end user can achieve a high Hegman grind. The GB series pigments also have high brightness, strong hiding powder and superior dispersibility, and it is widely applied in latex paint, powder coating and electrophoresis coating. 
Its main benefits are:

 It’s the best extender of titanium dioxide with excellent opacity that can
   improve efficiency and cut costs by partly replacing titanium dioxide;
It can easily disperse in water based systems; 
It offers superfine particle and with excellent anti-settling property; It is inert to most acids and
   alkaline at ambient temperature and offers good anticorrosive capabilities.

2. Typical Physical Properties

Item

GB-CK90

GB-CK92

Brightness(T457)

90.5%min

92%min

Particle Size (0-2micron)%

50+/-2

60+/-5

Particle Size (0-10micron)%

94%

97%

Refractivity

1.62

1.62

Screen residue (325 mesh %)

0.01max

0.01max

Oil Absorbency (g/100g)

35+/-5

50+/-5

Dispersion (micron)

55max

50max

pH

5.5-7.0

5.5-7.0

Bulk Density (kg/m3)

600

500

Specific Gravity (kg/m3)

2600

2600

Moisture (%)

0.5max

0.5max

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

4.Application

 


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Q:What's the difference between kaolin and white mud?
Pure kaolin with high whiteness, soft, easy to disperse in water, suspended in plasticity and good adhesion, high excellent electrical insulation properties; has good acid soluble cationic, low resistance and other physical and chemical properties, better exchange. Therefore, kaolin has become the necessary mineral material for dozens of industries, such as paper making, ceramics, rubber, chemicals, coatings, pharmaceuticals and national defense. Kaolin is widely used in the paper making industry. There are two main areas. One is used in papermaking (or paper making), and the other is the pigment used in the surface coating process.
Q:Kaolin crusher refers to which crusher?
The industrial departments of different uses of kaolin has a specific size and fineness in order to meet the requirements, paper, plastic and rubber products and other industries have higher requirements on the fineness of kaolin Raymond mill, it is necessary to increase the fineness of kaolin, so as to improve the product quality.
Q:How to remove iron impurities in kaolin and increase their whiteness
The two stage bio bleaching method refers to: firstly, Aspergillus niger in shake flask cultivation fermentation, 10 days or so, organic acids accumulated to a certain amount, then separate, the addition of kaolin can also achieve iron removal and whitening effect. The two stage biological bleaching method not only overcomes the above-mentioned shortcomings of in-situ biological bleaching, but also achieves the highest concentration of organic acids (especially oxalic acid) at suitable pH.
Q:How many eyes does the inner wall latex paint kaolin use?
Now the latex paint is not sand grinding, direct mixing so high mesh 1000 mesh, the price is too high
Q:Process characteristics of kaolin
Non plasticity <1 viscosity is a characteristic of a fluid that hinders its relative flow due to internal friction. Its viscosity is used to indicate its size (the internal friction force applied to 1 units per unit area). The unit is Pa. S. Viscosity measurements are generally made using rotational viscometer to measure the rotational speed in kaolin slurries containing 70% solids. Viscosity is very important in the process of production. It is not only an important parameter of ceramic industry, but also a great influence on the paper industry. According to data, foreign kaolin as paint, coating at low speed requires viscosity of about 0.5Pa - s, high-speed coating requirements of less than 1.5Pa - S.Thixotropy refers to the characteristics of a fluid that has become gelatinous and no longer flowing. It becomes fluid after stress and gradually becomes intact after being stationary. The size is expressed by a thickening factor and measured by an outflow viscometer and a capillary viscometer.Viscosity and thixotropy are related to the mineral composition, particle size and cation type in the mud. In general, the content of montmorillonite is fine, the particles are fine, and the exchangeable cations are mainly sodium, with high viscosity and high coefficient of change. Therefore, it is often used to increase the viscosity and thixotropy of plastic clay, improve the fineness and so on, and reduce it by increasing dilution, electrolyte and water content. The drying performance of kaolin clay material in the drying process. Including drying shrinkage, drying intensity and drying sensitivity.
Q:Heroes, help me see if this is quartz sand or kaolin? Is it valuable?
It's quartz sand. The aluminum content of kaolin is very high, at least above forty percent
Q:What are the surface modification technologies of calcined kaolin and the matters needing attention?
During the surface modification of calcined kaolin, it is necessary to react at a certain temperature. So, first of all to the calcined kaolin dynamic heating to a certain temperature (100 DEG C), in the high dynamic condition, adding after hydrolysis of silane coupling agent or compound modifier, adding to the best atomization. During the reaction between the coupling agent and kaolin, the temperature should be kept within 120 degrees, and at high speed, the time should be about 3-5 minutes.In addition, surface modification of kaolin and the reaction process, often produce false knot particles, the impact on the quality of the products is given, so the need for effective classification, only in this way can we fully guarantee the quality of products.
Q:What are the functions of kaolin? What areas of industry are you using?
The application of kaolin in ceramic industry, ceramic industry with kaolin is by products of high quality raw materials and advanced production process equipment, high product purity, stable chemical performance, physical performance advantages of excellent domestic varieties (unique suspension, insulation, plasticity, adhesion, coverage, wide range of firing.), ceramic products to the production of white color, compact, high mechanical strength, excellent product rate is high. Glaze grade products, delicate texture and white, good cover, smooth surface of products, white jade, is the daily, construction, sanitary ceramics indispensable ideal raw materials.
Q:How can we tell if there's kaolin in that hill?
It can be distinguished by its physical and chemical properties:Its characteristics: more non gloss, pure color, white and delicate, such as containing impurities can be gray, yellow, brown and other colors. According to the different causes of appearance is clod shape and dense state of loose rock block.
Q:What is the difference between chemical pure and pure analysis of kaolin?
Analysis of pure (AR, red label) (grade two): high content of principal components, high purity, interference impurities are very low, suitable for industrial analysis and chemical experiments.

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