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Description

Silicon Dioxide (SiO₂) Nanopowder/Nanoparticles, KH550 Coated, Purity: 96.3+%, Size: 20–40 nm


KH550-coated Silicon Dioxide (SiO₂) Nanopowder features a particle size range of 20–40 nm and a purity of 96.3+%. With its high surface area and white appearance, this material offers excellent dispersibility in both oil- and water-based systems thanks to its KH550 silane surface treatment. This coating enhances compatibility with organic and inorganic matrices and improves mechanical, anti-aging, electrical, and moisture resistance properties.

Technical Properties:

Property Value
Purity (%) 96.3+
Color White
Average Particle Size (nm) 20–40
Specific Surface Area (m²/g) 150–550
Bulk Density (g/cm³) <0.1
True Density (g/cm³) 2.2

Elemental Composition (%):

SiO₂ : KH550 Fe Ca Ti Na
96.3 : 3–4 0.02 0.002 0.012 0.025

Chemical Properties:
The KH550 silane coating makes the SiO₂ nanoparticles both super-oleophilic and hydrophilic, enabling effective dispersion in various resin systems. This functionalized surface significantly improves material performance in applications where mechanical strength, water resistance, and long-term durability are critical.

Applications:
KH550-coated Silicon Dioxide nanoparticles are used in a wide range of industries as a functional additive:

  • Plastics, polymers, and rubber: Improves mechanical strength, electrical insulation, and anti-aging properties.

  • Ceramics, glass, and adhesives: Enhances thermal resistance and structural durability.

  • Construction and concrete composites: Serves as a reinforcing nanofiller to increase strength and stiffness.

  • Biomedical field: Applied in drug delivery systems and theranostics due to biocompatibility.

  • Environmental technology: Used in air/water purification, filtration systems, and pollution control materials.

  • Coatings and composites: Increases scratch resistance, barrier properties, and enhances filler–matrix interactions.

Additional information

Gram

25 g, 100 g, 500 g, 1000 g