EVA (Ethylene Vinyl Acetate) adhesive film for packaging solar cell and preparation process thereof

The invention relates to the technical field of EVA (Ethylene Vinyl Acetate) adhesive films, and discloses an EVA adhesive film for packaging a solar cell and a preparation process thereof, the EVA adhesive film is mainly characterized in that an acid acceptor tetraethylammonium hydroxide is added in the raw material composition, the tetraethylammonium hydroxide is colorless and transparent ionic liquid, the binding property with water is good, and the binding property with water is good; most tetraethylammonium hydroxide in the market exists in the form of an aqueous solution. Under the conditions of the invention, a small amount of water molecules in the EVA adhesive film can be combined with tetraethylammonium hydroxide, so that the water molecules are bound, and water vapor cannot penetrate through the EVA layer; meanwhile, due to the strong basicity of tetraethylammonium hydroxide, tetraethylammonium hydroxide is extremely easy to react with acid, so that a small amount of acetic acid molecules in the EV