MANUFACTURING PROCESS
Unit | Hydrophilic | Hydrophobic³ | Analysis Method | |||||
K-90 | K-150 | K-200 | K-300 | K-121 | K-122 | |||
Specific Surface Area | m²/g | 90±15 | 150±20 | 200±25 | 300±30 | 120±20 | 120±20 | B.E.T |
pH | 3.7 ~ 4.7 | 3.7 ~ 4.7 | 3.7 ~ 4.7 | 3.7 ~ 4.7 | 3.7 ~ 5.5 | 3.7 ~ 5.5 | 4% Dispersion water⁴ | |
Drying Loss¹ | wt,% | ≤1.0 | ≤1.0 | ≤1.5 | ≤1.5 | ≤0.5 | ≤0.5 | 2 Hours at 105˚c |
Ignition Loss¹ | wt,% | ≤1.0 | ≤1.0 | ≤1.5 | ≤2.0 | ≤2.0 | ≤2.0 | 2 Hours at 1000˚c |
g/l | 50 100 |
50 100 |
50 100 |
50 100 |
50 90 |
50 90 |
||
325Mesh Residue | wt,% | <0.05 | <0.05 | <0.05 | <0.05 | |||
HCI | wt,% | <0.025 | <0.025 | <0.025 | <0.025 | <0.05 | <0.05 | |
Carbon Contenr | wt,% | 0.6 - 1.2 | 0.6 - 1.2 | |||||
SiO₂ -Content | wt,% | ≥99.8 | ≥99.8 | ≥99.8 | ≥99.8 | ≥99.8 | ≥99.8 | |
Al₂O₃² | wt,% | <0.05 | <0.05 | <0.05 | <0.05 | <0.05 | <0.05 | |
Fe₂O₃² | wt,% | <0.003 | <0.003 | <0.003 | <0.003 | <0.01 | <0.01 | |
TiO₂² | wt,% | <0.03 | <0.03 | <0.03 | <0.03 | <0.03 | <0.03 |
Note. | 1) Measure when Fumed silica id produced. |
2) Based on ignition at 1000℃ | |
3) Under R&D step | |
4) 4% dispersion in water : methanol = 1:1 in hydrophobic grade. | |
The given date are typical values, Specifications on request. |
01 CMP slurry abrasive | 06 Unsaturated Polyester Resin (UPR) | 11 Miscellaneous |
02 Silicone rubber | 07 Free Flow | |
03 Sealants, adhesives and caulks | 08 Heat and electric insulation | |
04 Rheology control | 09 Anti-plate-out | |
05 Unsaturated polyester gel coats | 10 Anti-blocking and anti-slip |
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