S10 Hydrophobic Silica Dioxide Powder

SKYSIL HYDROPHOBIC SILICA S10 As an equivalent replacement for Sipernat D10, S10 achieves the optimal balance between defoaming efficiency and lubricant stability through precise hydrophobic engineering and customized physical properties. 1. Hydrophobic Core (Loss on Ignition ≤8.0%) • An 8% loss on ignition corresponds to a 5.5-6.5wt% silicone coating, resulting in: Water contact angle >125°; 0.1% addition yields a water-based foam collapse time of ≤5 seconds. Enhanced oil resistance: Hydrophobicity loss <10% after 500 hours of service in 150°C gear oil. 2. Specific Surface Area (50-70 m²/g) – The Performance Balance • Defoamer: A medium specific surface area optimizes adsorption at the air-liquid interface, resulting in sustained foam suppression of ≥90 minutes (compared to products with >100 m²/g, which can lead to cratering). • Lubricant: Precisely control the thickening rate to avoid a surge in pumping resistance. 3. Tapped density (130-150g/L)—the key to process ada…

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