Vapor phase silica (fumed white carbon black) is one of the most important high-tech ultra-fine inorganic new materials. With CAS NO7631-86-9;white fluffy powder, non-toxic, tasteless and pollution-free.Because of its small particle size, it has a large specific surface area, strong surface adsorption, large surface energy, high chemical purity, good dispersion, thermal resistance, resistance and other aspects, has unique characteristics in many disciplines and fields with its superior stability, reinforcement, thickening and thixotropy, It plays an irreplaceable role. Nano-silica, commonly known as "ultra-fine silica", is widely used in various industries as an additive, catalyst carrier, petrochemical industry, decolorizing agent, matting agent, rubber reinforcing agent, plastic filler, ink thickener, metal soft polishing agent, insulation filler, advanced daily cosmetics filler and spraying materials, medicine, environmental protection and other fields. It also provides new material foundation and technical guarantee for the development of relevant industrial fields.
| White Carbon Black |
| Project | Index |
| Model | HS-175 | HS-155 | HS-258 | HS-40 |
| Production process | Precipitation method | Precipitation method | Precipitation method | Precipitation method |
| Appearance | White powder | White powder | White powder | White powder |
| Whiteness | ≥96 | 92 | 92 |
|
| Silicon content % | ≥96 | 96 | 96 |
|
| PH value | 6.5-7.5 | 6.5-7.5 | 6.5-7.5 | 6.5-7.5 |
| Specific surface area m²/g | 170-180 | 155 | 160 | 160 |
| Oil absorption value ml/100g | 240-280 | 180-200 | 180-200 | 200-220 |
| Particle size mesh | 325 | 325 | 1000 | 1500 |
| Drying reduction% 105℃，2h | 4.0-6.0 | 4.0-6.0 | 4.0-6.0 | 4.0-6.0 |
| Loss on ignition% 950℃,2h | 6.0-8.0 | 6.0-8.0 | 6.0-8.0 | 6.0-8.0 |
| Scope of application | Tire, translucent and highly transparent rubber products, rubber sole and cable industries | Silica is mainly used in conveyor belt, rubber roller and other rubber products |
| Product features | Silicon dioxide has low price, improves the tensile strength and wear resistance of vulcanized rubber, and is better than carbon black in enhancing the mechanical strength and tear strength of vulcanized rubber. |
Application
Fumed silica is a very useful industrial chemical used in a variety of industrial and consumer products. Fumed silica poses a variety of health hazards to workers in various end-use industries and to those using products that use fumed silica.
1. in various resin additives, medicine, food and other fileds.
2. rubber, sealant, silica gel, adhesive, tile grout etc.
3. paint, coating, UPR,
4. CMP suspension etc;
5. Digital photo paper etc.
7.Silicone rubber, air silicon is a very ideal reinforcing agent for silicone rubber, which can greatly improve its tensile strength and tear strength.;
8.Food: gas silicon in powder food can improve fluidity, prevent powder agglomeration and carrier adsorption;
9.Medicine: gas silicon can be used as anti caking agent, drug carrier and excipient of drugs, so as to prolong the efficacy;
10.Toner: improve the fluidity, charge retention and environmental storage stability of toner, and improve the defects such as bottom ash and ghosting during printing;
11.Catalyst carrier: gas silicon has good adsorption, dispersion and high purity, which can effectively improve the catalyst effect. It is an excellent catalyst carrier;
12.Optical fiber: gas silicon has excellent thickening thixotropy, which can effectively improve the filling efficiency of optical fiber filling paste;