Precipitated SiO₂, typically referred to as White Carbon Black, is a manufactured multifunctional inorganic compounding material frequently utilized in the rubber industry, possessing a broad range of good reinforcing properties.
White carbon black Adopt high grade precipitated silica (silicon dioxide) as raw material, for ultrafine processing, make its reach micron particle size, close to the fumed silica in nature.With advanced equipment and technology, product extremely narrow particle size distribution.Uniform particle size, make this difficult to have high specific surface and excellent reinforcement and dispersion.Used in high temperature rubber, silicone rubber, to improve the tear strength.So, instead of fumed silica, and partly to reduce costs, is a better choice.
Product Name: White carbon black
Other Name: Silicon Dioxide
Molecular Formula: SiO2.nH2O
CAS Number: 7631-86-9
| project | indicators |
| SiO2 content, in dry basis, % | P 98 |
| PH | 6.0 to 7.0 |
| D50, mu m | 6.0 or less |
| BET specific surface area, the m2 / g | 230-230. |
| 105 ° C dry weightlessness, % | 6.0 or less |
| SO42 - content, % | 0.5 or less |
| Total iron content, mg/Kg | 300 or less |
| DBP absorption value cm3 / g | 3.0 to 4.0 |
| Calcination reduction % | 7.0 or less |
| Heating loss % | 4.0-8.0 or less |
White carbon black is mainly used in silicone rubber, silicone rubber intermediates of precipitated silica rubber, plastic mold, glass, at the same time can also be applied to paint, ink, tires, sole, coatings, cosmetics, pesticide, textile and toothpaste, etc.
1 White carbon black for Rubber Products
Silica is used in colored rubber products to replace carbon black for reinforcement to meet the needs of white or translucent products. Silica also has superior adhesion, tear resistance and heat resistance and aging resistance, so it can also replace some carbon black in black rubber products to obtain high-quality rubber products, such as off-road tires, engineering tires, Radial tires, etc.
2. White carbon black for agricultural chemicals
In agricultural chemical products, such as pesticides, high-efficiency spraying fertilizers, etc., the use of white carbon black as a carrier or diluent, disintegrant, disintegrant used in Water Dispersible Granules WDG can improve the suspension rate, it is recommended to use the content of about 10%. It can maintain long-lasting effectiveness because of its ultra-high surface area, high adsorption force, easy suspension, good affinity and chemical stability. Even under rain, flushing and hot conditions, it can remain unchanged for a long time.
Daily chemical products
With white carbon black as filler and abrasive transparent color and opaque toothpaste, this kind of toothpaste has good flexibility, dispersion, paste smooth, soft, good abrasion, not abrasive toothpaste tube body; It can make the drug toothpaste to maintain the stability of the medicine. In particular, it has good compatibility with fluoride, which can avoid the disadvantages of calcium salt as abrasive to produce insoluble salt.
3. White carbon black for cementing agent
It is used in adhesives made of natural rubber or synthetic rubber to provide thixotropy and reinforcement, and at the same time can improve adhesion due to its extensibility, and is of high quality and low price.
4. White carbon black for anti-caking agent
Silica can be used in some products to improve free flow, such as lawn fertilizer, fungicide, grinding wheel abrasive, laundry bleach, phenolic injection molding urotropine, phenol and urea plastic products, manufacturing rubber sulfur and anti caking mixture.
5. White carbon black for papermaking filler
The use of white carbon black as paper filler can improve the ink resistance and mechanical strength of the paper, increase the whiteness and reduce the unit weight. It can effectively realize the light weight of paper, reduce the production cost and improve the performance of paper.
In addition, it can also be used in many industries such as fire fighting agents, feed, cosmetics, Matting agents, pigments, paints, etc.
1. Q: Are you a factory or trading company?
A: We are a factory.Our factory is located in Jingjiang City, Jiangsu Province, China, about 2.5 hours bus ride from Shanghai .All our clients, from Home or abroad, are warmly welcome to visit us! High quality products and competitive price always will be provided for you.
2.Q: Is there any possible to use my appointed label or package?
A: Sure. If needed, we'd like to use label or package according to your requirement.
3.Q: How and when can I get my goods after payment?
A: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, T/T, EMS, etc.) or by air. Usually it will cost 2-5 days that you can get the goods after delivery.
For large quantity products, shipment is better. It will cost days to weeks to come to your destination port, which depends on where the port is.
4. Q: How can I get some samples?
A: We are honored to offer you samples. For those normal products, you just need to bear the freight; for those high value products, you just need to freight and a little product cost.
5. Q: How does your factory do regarding quality control?
A: Quality is priority. Concord people always attach great importance to quality controlling from the very beginning to the very end. Our factory has gained BV, Intertek, SGS authentication.
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