1. Particle size 10-20nm 2. Purity 99.8%+ 3. White powder Silicon oxide nanopowder with epoxy group:Can be dispersed well into methylbenzene, ethoxyline, polyvinyl chloride, unsaturated polyester resin, phenolic resin, nylon, coating, etc., and can react with resin that contain epoxy group, amidogen, carboxyl, hydroxyl, to generate polymer inorganic nanocomposite materials.