SILFIT and AKTIFIT Calcined Neuberg Silaceous Earth
SILFIT and AKTIFIT Calcined Neuberg Silaceous Earth
Calcined Neuberg Silaceous Earth (CNSE) are based on SILLITIN Z 86; a downstream thermal process leads to calcination.
The calcination process leads to:
- offering of additional application benefits
- removing of crystal water present in the kaolinite
- Crypto-crystalline silica remains inert
New possible applications include:
- High voltage cables
- Light-colored or white compounds
- Thermoplastic materials
- Partly replacement of Titanium Dioxide and Carbon Black
SILFIT: The calcined grade. Based on SILLITIN, a heat treatment was applied to generate special performance benefits as a functional filler.
AKTIFIT: The activated SILFIT, produced by modifying the surface with special silanes.
Neuburg Siliceous Earth is a natural combination of crypto-crystalline and amorphous silica and lamellar kaolinite. These two minerals form a loose mixture impossible to be separated by physical methods. As a result of natural aging, the silica portion exhibits a round grain shape and consists of aggregated primary particles of about 200 nm diameter. This created a unique particle structure
Applications for SILFIT and AKTIFIT Calcined Neuberg Silaceous Earth
- Coatings Adhesives and Sealants (see leaflet)
- Elastomers and TPE (see leaflet)
- Polishing and Cleaning Agents (see leaflet)
Properties
| Silfit Z 91 | Aktifit AM | Aktifit VM | Aktifit PF 111 | |
|---|---|---|---|---|
| Basic material | Sillitin Z 86 | Silfit Z 91 | Silfit Z 91 | Silfit Z 91 |
| Surface modification | - | Amino silane | Vinyl silane | Alkylsilan |
| Color values L* / a* / b* | 95/-0.1/1 | 95/-0.1/1 | 94/-0.1/1 | 94/-0.2/1 |
| Volatile Matter at 105 °C | 0.002 | 0.002 | 0.001 | 0.002 |
| Hardness: silica/calcined kaolinite | 7 / 4.5 | 7 / 4.5 | 7 / 4.5 | 7 / 4.5 |
| Mineralogical | 0.6 | 0.6 | 0.6 | 0.6 |
| composition: | 0.3 | 0.3 | 0.3 | 0.3 |
| Crypto-crystalline silica Calcined kaolinite Amorphous silica | 0.1 | 0.1 | 0.1 | 0.1 |
