Non-Toxic White Fluffy Powder Nano-Silica For epoxy resin

Due to the small size and high surface activity of nanoparticles, they are easy to agglomerate and lose their due role in strengthening and toughening the polymer, so the nanoparticles should be fully dispersed when preparing nanoparticle filled composites. Milling, high-speed shearing, ball milling, sanding, ultrasonic and other treatments will help disperse the nanoparticles in the resin.

Because the surface energy of nanoparticles is high, the adsorption effect is strong, easy to gather, and it is difficult to disperse uniformly and stably, so we use grinding, high-speed shear, ball milling, sanding, ultrasonic and other methods and coupling agent treatment methods to promote the uniform dispersion of nano silica in epoxy resin.

According to the single molecular layer theory of coupling agent, the particle size decreases, the amount of coupling agent increases, and the mass ratio of silane coupling agent to nano-silica is 5/100.

Specification