CONTACTSYLOPHOBIC is a hydrophobic silica incorporating a poly-alkyl siloxane chemically reacted to its surface. It maintains the same characteristics as SYLYSIA such as large specific surface area, narrow particle size distribution, excellent dispersion and high oil absorption. It is most significant that SYLOPHOBIC imparts minimal viscosity impact with an affinity toward solvent-based system.
FEATURES
Excellent Hydrophobic Surface Properties
SYLOPHOBIC floats on water due to its hydrophobic functional group and is chemically bonded to organic silicone compounds, thus its surface properties keep it stable in spite of long-term storage. Furthermore, the hydrophobic surface characteristics improve the compatibility with resins and organic solvents.
Chemical Resistance
SYLOPHOBIC surface silanol chemically reacts with organic silicon compounds, thus it shows higher chemical resistance than untreated silica. It can be observed that the chemical change is smaller as demonstrated in the figure that the product which added SYLOPHOBIC into the formula for a long period of time. As seen in the left figures, it is obvious that SYLOPHOBIC shows minimal change for a long time in terms of chemical resistance compared with untreated silica at the same dose.
PURPOSE
Application
GRADE
| Grade | APS（μm） Laser method | pH （5% slurry : Water:MeOH） | Oil absorption （mL/100g） | Food contact |
|---|---|---|---|---|
| SYLOPHOBIC 100 | 2.7 | 8 | 240 | × |
| SYLOPHOBIC 200 | 3.9 | 8 | 230 | × |
| SYLOPHOBIC 702 | 4.1 | 8 | 170 | × |
| SYLOPHOBIC 704 | 6.2 | 8 | 170 | × |
| SYLOPHOBIC 4004 | 8.0 | 8 | 165 | × |
| SYLOPHOBIC 507 | 2.7 | 8 | 110 | × |
| SYLOPHOBIC 505 | 3.9 | 8 | 110 | × |
| SYLOPHOBIC 603 | 6.7 | 6 | 50 | × |
| SYLOPHOBIC 120 | 2.7 | 8 | 240 | 〇 |
| SYLOPHOBIC 525 | 3.9 | 8 | 110 | 〇 |
| SYLOPHOBIC 4024 | 8.0 | 8 | 165 | 〇 |