Nano-silica polishing liquid is widely used for high-flatness polishing of various materials at the nano level. Such as: surface precision polishing of stainless steel, aluminum alloy, compound crystal, precision optical devices, etc. The main component of nano-silica polishing liquid is silica sol, and pH regulator, surfactant, oxidant, dispersant, etc. are also added.
The main functions of each component are as follows ① Nano-silica colloidal particles: mechanical friction, adsorption of corrosion products;
② pH regulator: corrosion during polishing, forming complexes with certain components to remove them; ③ Oxidant: accelerate the corrosion rate and improve the removal rate; ④ Dispersant: disperse insoluble particles to prevent aggregation and precipitation.