Fumed silica, the product is a synthetic amorphous white fluid powder with various specific surface area and volumetric particle size distribution. This product is a white, loose, amorphous, non-toxic, odorless, odorless, non-polluting non-metallic oxide. Its primary particle size is between 7 and 80 nm, and the specific surface area is generally greater than 100 m2/g. Due to its nano-effects, it exhibits excellent reinforcement, thickening, thixotropic, insulating, matting, anti-sagging properties, etc., and is widely used in rubber, plastics, coatings, adhesives, sealants and other polymer industries. field.

Fumed silica - Basic content
Gas phase white carbon black, a nano-scale white powder formed by high temperature hydrolysis of silicon halides (mainly silicon tetrachloride and methyltrichlorosilane) in an oxyhydrogen flame, scientific name fumed silica or aerosol silica, Mainly used as a reinforcing filler and multi-functional additive, it makes a nano-material that is truly industrialized worldwide.

The product is a synthetic amorphous white fluid powder with various specific surface areas and a tight particle size distribution. This product is a white, loose, amorphous, non-toxic, odorless, odorless, non-polluting non-metallic oxide. Its primary particle size is between 7 and 80 nm, and the specific surface area is generally greater than 100 m2/g. Due to its nano-effects, it exhibits excellent reinforcement, thickening, thixotropic, insulating, matting, anti-sagging properties, etc., and is widely used in rubber, plastics, coatings, adhesives, sealants and other polymer industries. field.

Gas phase white carbon black - production method
Gas phase method, also known as pyrolysis, dry or combustion. The raw materials are generally silicon tetrachloride, oxygen (or air) and hydrogen, which are formed by reaction at a high temperature. The reaction formula is: SiCl4 + 2H2 + O2 -> SiO2 + 4HCl. The air and hydrogen are respectively subjected to pressurization, separation, cooling and dehydration, silica gel drying, dust removal and filtration, and then sent to a synthetic hydrolysis furnace. After the silicon tetrachloride raw material is sent to the rectification column for rectification, it is heated and evaporated in an evaporator, and sent to the synthetic hydrolysis furnace with the dried and filtered air as a carrier. After the silicon tetrachloride is gasified at a high temperature (flame temperature of 1000 to 1800 ° C), gas phase hydrolysis is carried out with a certain amount of hydrogen and oxygen (or air) at a high temperature of about 1800 ° C; the vapor phase white carbon black particles formed at this time Very fine, forming an aerosol with gas, not easy to trap, so it is first aggregated into larger particles in the concentrator, then collected by cyclone separator, then sent to the deacidification furnace, and the fumed silica is purged with nitrogen-containing air. To the PH value of 4 to 6, it is the finished product.

Vapor White Carbon - Product Features
The product is a synthetic amorphous white fluid powder with various specific surface areas and a tight particle size distribution. This product is a white, loose, amorphous, non-toxic, odorless, odorless, non-polluting non-metallic oxide. Its primary particle size is between 7 and 80 nm, and the specific surface area is generally greater than 100 m2/g. Due to its nano-effects, it exhibits excellent reinforcement, thickening, thixotropic, insulating, matting, anti-sagging properties, etc., and is widely used in rubber, plastics, coatings, adhesives, sealants and other polymer industries. field. As a liquid thixotropic agent and thickener, anti-sedimentation, anti-sagging; improve the suspension and dispersibility of pigment filler in liquid system; use as dispersion and grinding aid; improve coating corrosion resistance; improve powder fluidity , storage stability; improve powder charge and charge stability; improve water resistance; improve paint film scratch resistance; improve color vividness; fix special effects; improve paint film physical and mechanical properties; improve paint film adhesion and flexibility Improve rubber, elastomer viscoelastic properties, reinforcement; defoaming effect in antifoaming agent; improve coating surface hardness, scratch resistance; prevent adhesion in film and elastomer; as adsorbent and carrier; Print coating; advanced filler as a dental material; as a catalyst carrier, significant thermal insulation for low temperature and high temperature insulation.

Fumed silica model

Hydrophilic white carbon black: IOTA HL4150, IOTA HL4200, IOTA HL4300, IOTA HL4380

Hydrophobic white carbon black: IOTA HB4612, IOTA HB4615, IOTA HB4620, IOTA HB4630, IOTA HB4132, IOTA HB4135, IOTA HB4139, IOTA HB4151, IOTA HB4152,