Physical parameters Item diameter (nm) purity (%) specific surface area (m2 / g) bulk density (g / cm3) Density (g / cm3) crystal color PRD-G20 20> 99.99 62.4 0.12 2.33 spherical yellow PRD-G21 200 > 99.99 1.89 8.4 2.33 spherical brown Notes: According to customer requirements can provide different size products. Features and performance nanometer silicon refers diameter of less than 5 nanometers (one billion (1G) one meter) of crystalline silicon particles. Nano silicon powder with high purity, small particle size, distribution and other characteristics. Large surface area, high surface activity, low bulk density, the product is non-toxic, tasteless, good activity. Nano-silica fume is a new generation of semiconductor optoelectronic materials, with a wide gap semiconductors can also high-power light source material. Pu original Di (prandy) State Key Laboratory of Silicon Materials, Zhejiang University jointly developed and mass production of nano-silica particles with high purity, good dispersion, small particle size distribution, surface area, high surface activity, bulk low density, good activity, industrial production and other characteristics. Nano Silicon -Si-001 with graphite, carbon nanotubes and other complex, a lithium-ion battery anode materials can improve the capacity and number of cycles lithium-ion battery and prolong life. Is a new generation of optoelectronic semiconductor material with a wide energy gap. An application, made of silicon nanowires with nanometer silicon powder used in rechargeable lithium battery anode material in or on the surface of the nano silicon powder coated graphite anode materials used in rechargeable lithium battery, rechargeable lithium battery improved more than three times the capacity and charge and discharge cycles; 2, nano silicon powder used in high-temperature refractory coating and lining; 3, nano-silicon coating can be applied to form a silicon nano-film, is applied to a large number of solar energy above; 4, nano silica fume and diamond --- mixed under high pressure to form silicon carbide diamond composite materials, used as cutting tools. Pu original Di (Prandy) After 30 years of unremitting efforts, the legal use of physical preparation prepare nano-silica fume dispersion, high purity, clean interface, has become a trend to make a slurry with a powder, a national initiative. There are many on the market Ultrafine material sales, but often can not be dispersed users to buy back later use, achieving the desired effects. Or secondary agglomeration in semi-finished products, the resulting effect is not as good as expected. Pu original Di (Prandy) during early sales of nano products, but also encountered many problems. Obviously the original Cape Di (Prandy) nano material handling, excellent results. Nanomaterials to deal with their own customers, the result is not the same. The reason for this phenomenon is more ruthless, but the most important thing customers do not understand the dispersion technology. Pu original Di (Prandy) in order to avoid the same thing happen again, according to its own product characteristics, developed a method for dispersing nano-silica fume, and provides solutions dispersed users using nano silver powder is. In addition to the powder outside also developed a special solution, slurry, masterbatch, etc. can be used to help customers easily. Some even develop manufacturers, original Cape Di (Prandy) also requested manufacturers of raw materials currently used sent, Pu original Di (Prandy) tailored for the manufacturers of their plant material required. Pu original Di (Prandy) not only sales materials, but also provide customers complete solutions. To solve the second reunion of the phenomenon, the need for the product to fully understand the product itself, is it possible to be modified to change the polarity, creating competitive reaction rates, etc. will reunite phenomenon secondary to a minimum. Pu original Di (Prandy) research and development team is committed to three decades of chemicals in the world, put forward proposals should be of great value.