Nano Silica Powder–White Carbon Black

Nano-silica is an inorganic chemical materials, commonly known as white carbon black. Since the ultrafine nanometer size range 1-100nm thick, therefore it has many unique properties, such as having optical properties against UV, improving the abilities of other materials against aging, strengthing and chemical resistance. Silica has various applications. Nanoscale silica is amorphous white powder, non-toxic, tasteless, non-polluting, shape in a spherical structure, showing the structure of quasi-particles and flocculent mesh, molecular formula and the formula SiO2, insoluble in water.

Firstly, the plastic applications. Taking the advantages of transmitting, small particle size of silicon doxide nanopowders, which can make the plastic becomes more dense, after adding silica polystyrene plastic film, which can improve its transparency, strength, toughness, water resistance and anti-aging properties. To modify ordinary plastic olypropylene towards nano-silica makes it the major technical indicators (water absorption, insulation resistance, compressive residual deformation, flexural strength, etc.) that are met or exceeded performance nylon 6 engineering plastics.

Secondly, on the application of cosmetics. Nano-SiO2 is inorganic constituents that are easy compatibility with other components of cosmetics. It has the advantages of non-toxic, tasteless, itself as a white, reflective ultraviolet ability, good stability, and being not decomposed after UV irradiation, no color, nor with the other ingredients of the formulation from a chemical reaction, which laid a good foundation for the sunscreen cosmetic upgrading.

Last but not least, the application of antibacterial materials. Nano silica powder with physical inertia, high adsorption, commonly used as a carrier in the preparation of fungicides, when the nano-SiO2 as carrier can be adsorbed ion antimicrobial, antibacterial achieve sterilization purposes, reports can be used in refrigerators shell, computer keyboard, etc. manufacturing. To make use of nano-SiO2 large specific surface area, multi-mesoporous structure and strong adsorption capacity and singular physicochemical properties, ionic silver ions and other functions designed to uniformly mesoporous nano SiOX surface, developed a highly efficient, durable, resistant high temperature, spectrum antimicrobial nano-antibacterial powder can be widely used in instruments, medical, chemical building materials, home appliances, functional fibers, plastics and other industries.

Nano-silica, as one of the member of nanometer materials, has important practical significance for its development. Studies of nanomaterials has made many achievements in domestic, but the application of nano-SiO2 has just started, with in-depth study of nano SiO2, widening the field of application, further industrialization of nano silica, nano-silica materials are also inevitably leading more attention and definitely will expand broader prospects.