Heat Resistance Fumed Silica
Heat resistant fumed silica is a type of silica that can withstand high temperatures without compromising its physical or chemical properties.
Description
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Description
Heat Resistance Fumed Silica is a type of silica that has been specially treated to have high resistance to heat. It is a white, odorless, and tasteless powder that is commonly used in a wide range of industries, including medicine, cosmetics, coatings, and adhesives.
The unique properties of heat resistance fumed silica make it an ideal material for use in applications that require high-temperature stability, such as fire-resistant coatings, high-temperature sealants, and insulating materials. It is also used as a thickening and anti-settling agent in many products, including paints, inks, and personal care products.
Heat resistance fumed silica is produced through a process known as flame pyrolysis, which involves the reaction of silicon tetrachloride with oxygen and hydrogen in a high-temperature flame. This creates a very fine silica powder with a high surface area and unique properties that make it an ideal material for a wide range of applications.
Specification
|
Item |
Standard |
Lab result |
|
Appearance |
Fluffy white powder |
Pass |
|
Specific surface area（m2/g） |
200±30 |
199.34 |
|
4% suspension PH |
3.7-4.5 |
4.16 |
|
105℃ heating loss/ % ≤ |
3.0 |
0.71 |
|
Sio2 content % |
≥99.8 |
99.9 |
|
Conclusion |
Pass |
|
Feature
1. High thermal stability: Heat resistant fumed silica can withstand temperatures up to 1,100°C without degrading or losing its properties.
2. Increased strength: Adding fumed silica to materials such as polymers, adhesives, and coatings can increase their strength and durability, particularly their heat resistance.
3. Low thermal conductivity: Fumed silica has low thermal conductivity, which makes it an ideal material for insulation applications.
4. Improved rheological properties: Fumed silica can significantly enhance the viscosity, thixotropy, and shear-thinning behavior of liquid systems, making them more stable and easier to handle.
5. Easy to disperse: Fumed silica has a high surface area, making it easy to disperse in a variety of liquids and polymers.
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