INTRODUCTION
Upon calcination in a furnace at a designated temperature and time, kaolin's physical and chemical properties are modified to meet specific standards.
Low-temperature calcined kaolin, in contrast to uncalcined kaolin, has a decreased bound water content, an increased silica and trialumina content, more active sites, structural modifications, and a more consistent and finer particle size. The vulcanization characteristic curve of NR rubber with low-temperature calcined kaolin is nearly the same as that with uncalcined kaolin, with no variation in Shore hardness but an improvement in tensile strength.
PRODUCT PICTURES
TEXT REPORT
| WASHED KAOLIN WHITNESS 85 |
| NO. |
Item |
Result |
| 1 |
LOSS(1025ºC) |
11.87 |
| 2 |
Al2O3 |
35.05 |
| 3 |
SiO2 |
50.96 |
| 4 |
Fe2O3 |
0.68 |
| 5 |
CaO |
0.01 |
| 6 |
MgO |
0.05 |
| 7 |
K2O |
0.93 |
| 8 |
Na2O |
<0.01 |
| 9 |
TiO2 |
0.3 |
| 10 |
Whiteness(1200ºC Heat Preservation 30 min, Blue Light) |
87.2 |
| CALCINED KAOLIN |
| NO. |
Item |
Result |
| 1 |
LOSS(1025ºC) |
<0.05% |
| 2 |
Al2O3 |
0.4478 |
| 3 |
SiO2 |
0.5375 |
| 4 |
Fe2O3 |
0.0035 |
| 5 |
CaO |
0.0001 |
| 6 |
MgO |
<0.01% |
| 7 |
K2O |
0.0017 |
| 8 |
Na2O |
0.0006 |
| 9 |
TiO2 |
0.0072 |
| 10 |
Whiteness(1200ºC Heat Preservation 30 min, Blue Light) |
93.8 |
| 11 |
1200ºC×30min |
L* |
97.84 |
| a* |
0.43 |
| b* |
1.36 |
APPLICATION
The main differences between washed kaolin and calcined kaolin lie in the processing methods, physical and chemical properties, application fields, and costs. Washed kaolin is purified through physical methods, retaining the original properties of the raw material, with lower costs and mainly used as a filler for papermaking; calcined kaolin undergoes high-temperature treatment to change the crystal structure, improving whiteness and performance, but has higher costs and is suitable for high-end papermaking, coatings, and other fields.
1.
Coating: Calcined kaolin plays the role of filling the skeleton in the coating, which has the characteristics of high dispersion, chemical stability, corrosion resistance, fire resistance, scrub resistance, etc., which can improve the mechanical properties of the paint film, improve the coating covering power and weather resistance. In addition, it can also replace part of titanium dioxide, used in interior and exterior paint, high-grade paint, ink and marking paint, etc., directly reduce costs.
2.
Plastics: Calcined kaolin can improve the strength, whiteness and electrical insulation of shed film, mulch film, cable, PVC pipe (plate) and other products. In the plastic film, it can also improve the scattering transmittance, block infrared rays, and reduce costs as a volume filler.
3.
Paper making: The use of calcined kaolin can increase the void volume and loose thickness of the coating, smoothness, improve the opacity and elasticity of the paper, improve ink adsorption, gloss and reduce printing spots.
4.
Pesticides and petrochemicals: Because the surface of calcined kaolin particles has micro-pores, it has great adsorbability and can be used in medicine and pesticides. Because of its neutral and high silicon content, it can also be used to make silicon fertilizer and feed additives. In refining, it can be used as a catalyst to improve the quality of oil products.
5.
Paint: Calcined kaolin has the characteristics of low cost, high whiteness, strong hiding ability, chemical inertia, etc., and can act as fillers and color substitutes in the production process of paint and coatings. At the same time, its irregular shape and strong optical properties make it act as a white pigment in paint.
6.
Materials and cutting-edge science: In the modern materials industry, calcined kaolin can be used to make composite materials with the characteristics of both metal and non-metal materials, with good mechanical strength, impact and radiation resistance, high temperature resistance, corrosion resistance and other excellent properties. Therefore, it can be used as high-temperature combustion chambers, nozzles, cylinders, and other special ceramic materials and fine ceramic materials for automobiles, aircraft, rockets, etc.
COMPANY PROFILE
Amanda (Liaoning) International Trade Co., Ltd. was formerly known as Jin Run Hao Mineral Products Co. The company was established in early 2018, is an integrated company engaged in mineral products processing, foreign trade sales. The main products of the company are ceramic materials, construction materials and refractory materials. The company adopts international advanced processing and photoelectric integration classification technology equipment, in order to ensure accurate quality control and meet the needs of customers. Our company has a technical R&D team to adjust the quality requirements for the special needs of different customers. In the complex international intermodal transportation, we have signed first-class agency contracts with many shipping companies and railroad companies in many ports to provide customers with low-cost and time-efficient transportation solutions. Each product of our "AMANDA" brand has its own advantages and is suitable for different industries. Our products are exported to India, Russia, Turkey, Vietnam, Korea, Indonesia, Bangladesh and other Southeast Asian and European countries. Our products are well received by our customers and we have established a long-term cooperation partnership.
Facing the fierce market competition, Amanda people insist on the tenet of market-oriented, customer-oriented and credit-oriented, and strive to become an international enterprise with outstanding quality, trustworthiness and social responsibility.
PRODUCING & PACKING
FAQ
Q: Do you provide samples ? is it free or extra ?
A: Yes, we can offer the sample for free but the freight is on client's account.
Q:How about the price and quanlity?
A:We provide ex-factory price, good and steady quality products and we are widely recognised by clients for our steady quanlity.
Q:How many years of experience in supply?
A:Our company has a professional trade team, serving in the trade industry for nearly 20 years.
Q:Do you accept customization?
A:We can give you the right advice according to your specific application.
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