Take you to know the nano silica SiO2

nano silica (English name nano-silicon dioxide) is an inorganic chemical material, commonly known as white carbon black. Because it is ultra-fine nanoscale with a size range of 1 to 100nm, it has many unique properties, such as optical properties against ultraviolet light, which can improve the aging resistance, strength and chemical resistance of other materials. Very versatile. Nanoscale silica is amorphous white powder, non-toxic, tasteless, non-polluting, spherical microstructure, flocculent and reticular quasi-particle structure, molecular formula and structural formula is SiO2, insoluble in water.

Physicochemical Properties of Nano-silica

The particle size is below 0.3μm, the relative density is 2.319~2.653, the melting point is 1750 ℃, and the polymerized fine particles will be formed after being exposed to the air to absorb moisture. And the branching state of the nanometer is a three-dimensional chain structure, with unsaturated residual bonds and hydroxyl groups in different bonding states on the surface. Nano SiO2 as nano powder, its volume effect and quantum tunneling effect makes it produce penetration, can be deep into the polymer compound near the π bond, overlap with the polymer compound electron cloud, form a spatial network structure, thus greatly improving the mechanical strength, toughness, wear resistance and aging resistance of polymer materials.

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