silica 1.MF:sio2 2.Purity:90% 3.Appearance:powder,whitenubby,granule 4.packed in 20kgs, 15kgs PP or paper bags
silica
Item | Technique data |
Appearance | White powder |
whiteness | Greater than or equal to the standard |
Sio2(dry)% | ≥90 |
Evaporation %105°C,2h | 5.5-7.5 |
Ignition loss(dry)%1000°C,2h | 3.0-6.5 |
PH value | 6.0-7.5 |
BET specific | 140-165 |
DBP absorption | 2.4-3.0 |
Total Fe | ≤500 |
Total Cu | ≤30 |
Total Mn | ≤50 |
Matter on sieve(45um)% | ≤0.5 |
Rubber Test Data( 150°C×15′) | |
Mpa Moduius 500% | ≥6.3 |
Mpa Tensile Strengh | ≥17.0 |
Elongation Break% | ≥675 |
Usage | It is mainly used in rubber products, such as bias tyre, rubber pipe and conveyer belt etc |
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high quality 90%min silica for tyre on hot sells
