Silicon dioxide, nanopowder, 10-20 nm particle size (BET), 99.5% trace metals basis – Sigma-Aldrich

Synonyms
Silica, Nanosilica, Silicon dioxide

Cas No.
7631-86-9

General Description
The refractive index of silica nanoparticles is similar to polymeric coatings, so it finds several applications in the preparation of nanocomposites. Properties such as, thermal resistance, electrical and mechanical are enhanced. Silica nanoparticles find uses in various fields of catalysts, pigment stabilisation, electronics and sensors.

Application
Silica nanoparticles have been used :

• To study the nonlinear optical properties of SiO2 nanocomposites in weak optical fields.
• As a nanoadditive in nanocomposite calcium alginate fibres.
• As a dispersant in liquid polymethylsiloxane to exhibit unique optical nonlinearity in low-intensity visible radiation fields.[2]