HIGH DISPERSION SILICA
Details
Product name: Precipitated Silica RCHD series
Molecular Formula: SiO2.nH2O
CAS No.: 7631-86-9
SPECIFICATION:
|
Item |
RCHD115 |
RCHD135 |
RCHD165 |
RCHD175 |
RCHD205 |
|
Appearance |
White micro-pearl |
||||
|
BET specific surface area, m2/g |
100-130 |
120-155 |
155-170 |
170-190 |
190-230 |
|
SiO2 content (Min) ≥ % |
97 |
97 |
97 |
97 |
97 |
|
Loss on drying(105℃, 2h), % |
5.0-7.5 |
5.0-7.5 |
5.0-7.5 |
5.0-7.5 |
5.0-7.5 |
|
Loss on ignition(1000℃, 2h) (Max) ≤ % |
7.0 |
7.0 |
7.0 |
7.0 |
7.0 |
|
pH value |
5.5-7.5 |
5.5-7.5 |
5.5-7.5 |
5.5-7.5 |
5.5-7.5 |
|
Modulus 500% (Min) ≥ Mpa |
13.0 |
13.0 |
13.0 |
13.0 |
13.0 |
|
Tensile strength (Min) ≥ Mpa |
19.0 |
19.0 |
19.0 |
19.0 |
19.0 |
|
Elongation (Min) ≥ % |
550 |
550 |
550 |
550 |
550 |
|
From the soluble salt solution (Max) ≤ % |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
|
Particle size D50, μm |
2.9-4.9 |
3.3-5.3 |
3.3-5.3 |
4.6-6.6 |
5.3-7.1 |
|
Percentage rate greater particle size than 18μm |
3.0 |
5.0 |
5.0 |
7.0 |
10.0 |
Properties: To improve the dispersion of silica in the filler for efficient mixing, the product is especially suitable for tire tread requiring high wear resistance, low rolling resistance and excellent wet grip.
Application: Used for snow tire, passenger car tire, engineering tire, aero tire, etc.
Packing: In 20kgs bag or 550kgs jumbo pakcage.
Storage: Keep container tightly closed in a cool, dry and well-ventilated place, avoiding exposure of the packaged product to direct sunlight.
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