Which is hydrophilic, precipitated silica and meteorological silica
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Which is hydrophilic, precipitated silica and meteorological silica
The difference between precipitated silica and fumed silica is that the process is different and the particle size is different.
Precipitated silica is at the micron scale, and fumed silica is at the nanoscale.
General silica (regardless of gas phase method or precipitation method) is hydrophilic, and hydrophobic silica is hydrophilic silica through surface modification, so that the surface of silica has hydrophobic groups and has hydrophobicity. .
