silica micro pearl is a kind of new environment-friendly products,has no dust polution through productive process
silica micro pearl is our own unique products, it's more environment-friendly when compare with traditional silica powder and silica granular , and has the advantage of low dust and low polution.
silica bead with special physicochemical properties,used as reinforcing filler for rubber products and rubber sole,it's high reinforcing effect approximates to carbon black,but i can make rubber products look light-colored and have good transparency
jacky at fengrunchem dot comSiO2 (%) | ≥ 92 |
Loss on heating (%) | 5.0-6.5 |
Loss on ignition (%) | ≤ 7.0 |
PH value | 6.5-7.0 |
Specific surface area BET(cm2/g) | 160 -180 |
DBP absorption value (cm3/g) | 2.4-2.5 |
Total iron content ( mg/Kg) | ≤ 300 |
Sulfate (%) | ≤1.5 |
Pellet degree | 40-100mesh/inch: ≥90% |
ppt silica micro pearl grade
