Nano-silicon refers to crystalline silicon particles with a diameter less than 5 nanometers (one billionth of a meter), 78% of which are based on water-based polyurethane, with nano-scale inorganic silicon mineral materials added. Nanosilicon refers to silicon particles with a size of nanometers. Nano silicon powder has the characteristics of high purity, small particle size and uniform distribution. It has the characteristics of large surface area, high surface activity and low bulk density. The product is non-toxic and odorless. Nano-silica powder is a new generation of optoelectronic semiconductor materials. It has a wide gap energy semiconductor and is also a high-power light source material.

Nano-silica particles have a large specific surface, are colorless and transparent; have low viscosity, strong penetrating ability, and good dispersion properties. The silica particles of nano-silicon are at the nanometer level, and their particle size is smaller than the wavelength of visible light. They will not reflect or refract visible light, so they will not make the paint surface matte.

The “usefulness” of nano-silicon
1. Can react with organic matter to be used as raw material for silicone polymer materials.
2. Polycrystalline silicon is produced by purifying metallic silicon.
3. Metal surface treatment.
4. Replace nano carbon powder or graphite as anode material for lithium batteries, greatly increasing the capacity of lithium batteries.
5. Semiconductor microelectronic packaging materials.
6. Car beauty products add luster and fill in minor cracks on the surface.
Typical applications of nano silicon
Nano silicon waterproofing agent white emulsion, non-toxic, non-irritating, non-flammable, pH value 12, density 1.15~1.2. It is used on bricks, cement, gypsum, lime, paint, asbestos, perlite, insulation boards and other base surfaces to have excellent waterproof and impermeable effects. It has the functions of preventing building weathering, frost cracking and exterior wall cleaning, anti-fouling, anti-mildew, and anti-moss growth; reliable quality, good durability, acid and alkali resistance, excellent weather resistance, no rust on steel bars, and safe to use and construction convenient. The anti-permeability performance of mortar is ≥S14, and the anti-permeability performance of concrete is ≥S18. The technical performance complies with the JC474-1999 [mortar, concrete waterproofing agent] standard and JC/T902-2002 standard.
Application of nano silicon in coatings
The perfect application of nanotechnology in coating products includes dozens of varieties such as interior walls, exterior walls, antibacterial latex paints, and primers. Product performance has been greatly improved: Nano-specific amphiphobicity, non-stick to water, non-stick to oil, and resistant to washing up to tens of thousands of times; super strong adhesion and elasticity, no hollowing, no peeling, no cracking; nano-material UV The shielding function greatly improves the aging resistance, does not fade for a long time, and has a service life of more than ten years; the unique photocatalytic effect and self-cleaning function can prevent mildew, sterilize, and purify the air.
Application of nano silicon in lithium batteries
Due to the high absorption rate of nano-silicon for lithium batteries, using nano-silicon with lithium batteries can greatly increase the capacity of lithium batteries (theoretically it can reach 4000mA/h). At the same time, the world's advanced technology is used to coat the surface of nano-silica powder with graphite. The composition of Si-C composite materials can effectively reduce the expansion of silicon when absorbing lithium ions. At the same time, it can increase the affinity with the electrolyte, facilitate dispersion, and improve cycle performance.
Conclusion
The emergence of nanotechnology has made a significant mark in the field of new materials, not only giving rise to new research fields and technologies (such as spintronics, nanoimprint lithography, etc.), but also opening up new fields of application. The world provides an effective way to solve bottleneck problems and brings new development opportunities to traditional industries. At the same time, the new products and new methods derived from it have formed a huge emerging market. Its further development is very likely to trigger a production revolution. and consumer revolution.

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