Precipitated silica
Application areas:
Widely used in silicone rubber,synthetic rubber products,natural rubber products,adhesives and other fields.
Product Features:
1,in the silicone rubber products to enhance,wear,high temperature,tear resistance,improve dielectric properties.
2,in the synthetic rubber and natural rubber to fill and reinforce,especially in light color and transparent products play an irreplaceable role.
3,in the adhesive products to strengthen,thicken,thixotropic,anti-precipitation,anti-caking,processing aids,improve stability,adhesion and other effects.
Technical indicators
| Standard project name | skills requirement | H-801 | HJ-356 |
| Silica content % | ≥96 | 98 | 98 |
| colour % | ≥94 | 95 | 95 |
| Average particle size UM | 7-10 | ||
| Specific surface area m2/g | 180-200 | 186 | 189 |
| PH value | 6.5-7.5 | 6.8 | 6.5 |
| Dry reduction % | ≥4 | 6 | 6 |
| Oil absorption value cm3/g | 2.3-2.5 | 2.37 | 2.36 |
| Searing loss % | ≤8.5 | 5 | 5 |
| Sieve residue (45um) | ≤0.5 | <0.1 | <0.1 |
