silica

As a common nano material, the application of fumed silica in phenolic resin has attracted extensive attention. Fumed silica has small particle size, large specific surface area, strong surface adsorption, large surface energy and high chemical purity. The dispersion of fumed silica particles in polymer system can be strengthened through certain surface treatment. The connection or filling of fumed silica particles into phenolic resin will inhibit the movement of molecular chain of cured resin, make the fracture of polymer chain need higher temperature during heating, and improve the thermal stability…