NEWS

FUMED SILICA (FUMED WHITE CARBON BLACK) APPLICATION FIELD ANALYSIS

2023-07-04 14:20

Fumed silica (fumed white carbon black) is one of the most important high-tech ultrafine inorganic new materials. Due to its small particle size, it has a large specific surface area, strong surface adsorption force, large surface energy, high chemical purity, good dispersion, thermal resistance, resistance and other aspects of its specific properties. It has unique characteristics in many disciplines and fields and plays an irreplaceable role.


PAINTS, INKS, LIQUID COATINGS

Fumed silica in liquid coatings, inks and paints, mainly play a thickening and thixotropic effect, white carbon black dispersed in the system can form a good nanoparticle network, when the shear force is applied, the network is destroyed, and after the shear force is eliminated, the network can quickly recover, thus playing a thickening, thixotropic and anti-settlement role. In addition, it can also improve the physical and mechanical properties of the material. Improve weather resistance and scratch resistance.


POWDER COATING

The addition of fumed silica can effectively reduce the adhesion between the powder particles, between the powder and the tube wall, prevent the solid and caking of the powder, give the powder good fluidity and porosity, improve the one-time powder rate, prevent and reduce the flow, and significantly increase the scratch resistance of the powder film.


ADHESIVES AND SEALANTS

Using the excellent reinforcing, thickening and thixotropic properties of fumed silica, it can prevent the precipitation of adhesives and sealants during storage, and the phenomenon of flow hanging during curing, and improve its tear strength and bond strength.


LUBRICATING OIL

The use of fumed silica as a lubricating oil additive can not only form a film that is easy to shear on the friction surface, reduce the friction coefficient, but also fill and repair the friction surface to a certain extent, and play an anti-wear role. After modifying the surface of hydrophilic fumed silica and adding it to lubricating base oil, a lubricant with better high temperature and wear resistance can be prepared.


FOAMED SILICONE AND SILICONE RUBBER

Fumed silica can form physical or chemical combination with silicone rubber macromolecules to achieve reinforcing effect, which can improve the mechanical properties of materials.


UNSATURATED RESIN

Adding a small amount of fumed silica to the unsaturated resin can give the resin excellent transparency and excellent physical properties, and improve the quality of downstream products.


COLLOIDAL BATTERIES

Fumed silica has the functions of thickening, anti-caking, controlling system rheology and thixotropic, etc. Besides traditional applications, it is also widely used in colloidal batteries.


PIGMENT

Although organic pigments have bright colors and strong coloring power, they are generally less resistant to light, heat, solvent and migration than inorganic pigments. By adding fumed silica (fumed white carbon black) to the surface modification of organic color (dyeing) material, not only the anti-aging performance of the color (dyeing) material is greatly improved, but also the brightness, hue and saturation and other indicators are also improved to a certain extent, the performance can be comparable to imported high-grade products, greatly expanding the grade and application range of organic color (dyeing) material.


PLASTIC

The use of fumed silica (fumed white carbon black) light transmission, small particle size characteristics, can make the plastic become more dense, after adding silica in polystyrene plastic film, not only improve its transparency, strength, toughness, and waterproof performance and anti-aging properties are also significantly improved. By adding a small amount of nano-silica to the common plastic polyvinyl chloride, the hardness, finish and anti-aging properties of plastic steel doors and Windows are greatly improved. The main technical indexes (water absorption, insulation resistance, compressive residual deformation, flexural strength, etc.) of polypropylene are all up to or above the performance indexes of engineering plastic nylon 6, and the use of polypropylene railway accessories instead of nylon 6 is realized, and the product cost is greatly reduced, and its economic and social benefits are very significant.


IN ADDITION, FUMED SILICA IS ALSO INDISPENSABLE IN COSMETICS, DEFOAMER, ELECTRONIC PACKAGING, PESTICIDES, MEDICINE, FERTILIZER, FEED AND OTHER INDUSTRIES.