Colloidal Silica - Applications

Applications

  • In papermaking colloidal silica is used as a drainage aid. It increases the amount of cationic starch that can be retained in the paper. Cationic starch is added as sizing agent to increase the dry strength of the paper.
  • High temperature binders
  • Investment casting - used in moulds
  • An abrasive - for polishing silicon wafers
  • Carbonless paper
  • Catalysts
  • Moisture Absorbent
  • It increases the bulk & taped density of powder & granules also
  • It is also be used in Lubrication of Tablet
  • Stabilizing and rigidizing refractory ceramic fiber (fiberfrax) blankets
  • Abrasion-resistant coatings
  • Increasing friction - used to coat waxed floors, textile fibers and railway tracks to promote traction
  • Antisoiling – fills micropores to prevent take up of dirt and other particles into textiles
  • Surfactant – used for flocculating, coagulating, dispersing, stabilizing etc.
    • Liquid silicon dioxide (colloidal silica) is used as a wine and juice fining agent.
  • Absorbent
  • Colloidal silica is used in concrete densifiers and polished concrete.
  • In manufacturing Quantum dots, small semi-conductors used in various scientific research settings.

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