| abstract |
The invention discloses a high-transparency barrier film and an application thereof. Its structure includes a base material, a high-refractive-index layer, and a low-refractive-index layer in sequence; the high-refractive-index layer is composed of high-refractive-index particles, nano-oxides, Phosphorus-containing compound and acid catalyst, the low-refractive index layer is composed of a carboxyl-containing polymer, a hydroxyl-containing water-soluble polymer, a coupling agent with a carboxyl-reactive group, and a hydrolysis condensate of silicon alkoxide , resin crosslinking agent composition. The synergistic effect of the high refractive index layer and the low refractive index layer prepared by the invention not only increases the light transmittance of the base material by 2% to 5% in the visible light band, but also increases the water blocking performance of the base material by 10 to 1000 times. The barrier film prepared by the invention can be applied to the fields of food packaging, medicine packaging, flexible packaging of optoelectronic devices and the like. |