Introduction
Rubber additivesCharacteristics
Evaluation
Earameters
| Silica For Rubber Industry | |||
| Product Series | Company | Rubber Additives Silica | |
| Grade | YK320 | YK322 | |
| Index | |||
| Project | |||
| Appearance | Powder / Beads | ||
| Physical Form | |||
| BET | ㎡/g | 165-195 | 185-240 |
| Bulk Density | g/l | 190-280 | 200-300 |
| Silica(Dry Basis) | % | ≥90 | ≥90 |
| Drying Loss | % | 4.0-8.0 | 4.0-8.0 |
| Igdition Loss(Dry Basis) | % | ≤7.0 | ≤7.0 |
| PH（10%Aqueous Solution） | 6.5-8 | 6.5-8 | |
| DBP | cm³/g | 2.0-3.5 | 2.0-3.5 |
| Sieve Residue 45μm | % | ＜0.5 | ＜0.5 |
| Soluble Salts | % | ≤1.5 | ≤1.5 |
| Cu | mg/kg | ≤30 | ≤30 |
| Mn | mg/kg | ≤50 | ≤50 |
| Fe | mg/kg | ≤500 | ≤500 |
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