EVA photovoltaic packaging adhesive film and preparation method thereof

The invention relates to an adhesive film, in particular to an EVA photovoltaic packaging adhesive film and a preparation method thereof. The packaging adhesive film is prepared from the following raw materials in parts by mass: 100 parts of matrix resin, 0.1-1 part of a coupling agent, 0.1-1.5 parts of an anti-PID additive, 0.1-2 parts of a rapid cross-linking agent, 0.1-1 part of an assistant cross-linking agent, 0.1-1 part of a light stabilizer and 0.1-2 parts of a modified acid acceptor. Compared with a conventional EVA (Ethylene Vinyl Acetate) adhesive film, the packaging adhesive film disclosed by the invention is used for packaging an N-type TOPCon assembly, has the characteristics of high crosslinking speed, high light transmittance, excellent PID (Potential Induced Degradation) resistance, capability of absorbing acidic substances generated in the aging process of the assembly and the like, and can meet the packaging requirements of the N-type TOPCon assembly. 本发明涉及一种胶膜，具体为一种EVA光伏封装胶膜及其制备方法。封装胶膜的原料按质