Specification
Fumed Silica dioxide powder is a wide-using material which is often used in industrial area, printing area and
other areas. It is a fine white powder that is made by burning silicon tetrachloride in a flame of hydrogen and oxygen.Fumed silica dioxide powder has large particle size which is famous for its excellent adhesion property
and excellent suspension performance.
* Adhesion Property - In the area of industrial painting, fumed silica dioxide is often used as adhesvie to enhance the ink's adhesion property and flow property.It can help to prevent the painting from dissovling during the using time. Expect for that, it can also decrease the possibility that the ink might be melting in different solutions. This means the fumed silica dioxide can also enhance the printing quality.
* Controling the flow and leveling of the ink - In the area of industrial painting, fumed silica dioxide can be used
as a rheology modifier to control the flow and leveling of the ink.It helps to prevent pigment settling and improve the stability of the ink formulation. Fumed silica can also enhance the scratch resistance and durability of the printed image.
In addition, fumed silica dioxide is a worth additive that is used in industrial area and printing area.It is a cost-effective and efficient solution for enhancing the performance of inks in various applications.
Properties
1. Reinforcing filler in elastomers
2. Rheology and thixotropy control of liquid systems, binders, polymers, etc.
3. Used as anti-setting, thickening, anti-sagging agent.
4. Improvement of free flow and anti-caking characteristics of powders.
5. High transparency
Physical and Chemical Data:
| Property | Unit | Typical Value | Testing Method |
| Specific surface area(BET) | ㎡/g | 115±15 | GB/T20020 |
| PH Value in 4% dispersion | | 3.7-4.5 | GB/T20020 |
| Loss on dying(2h@105C) | Wt% | ≤0.5 | GB/T20020 |
| Loss on ignition(2h@1000C,based on material dried for 2h@105C) | Wt% | ≤2.5 | GB/T20020 |
| Silica content(Based on ignited material) | Wt% | ≥99.8 | GB/T20020 |
| Tamped density(Based on material dried for 2h@105C) | g/L | 40-60 | GB/T20020 |
| Carbon content(Based on material dried for 2h@105C) | g/L | 0.6-1.2 | GB/T20020 |
Applications
1. Paints and Coatings
2. Unsaturated polyester resins and films
3. Elastomers, especially HTV and RTV Silicone rubber
4.Adhesives and Sealants
5.Printing Inks
6.Powder Coating.
Advantage
1. Rheology Control Including Thickening – tailored flow properties, Sag resistance -reduced sag of liquids and pastes, Anti-settling prevents sedimentation and settling, Thixotropy – shear thinning viscosity profiles.
2. Reinforcement – improving strength in silicones and other polymers.
3. Free flow additive in powders
Anticorrosion Pigments, Inkjet Receptive Coating, Matting Agent
