What are the characteristics of EVA film for encapsulating backplanes?

EVA (ethylene vinyl acetate) film for encapsulating backsheets has a variety of excellent properties in the photovoltaic industry, making it one of the important materials for solar cell modules.

First of all, EVA film has good transparency and optical properties, which can effectively transmit light and maximize the photoelectric conversion efficiency of photovoltaic modules. At the same time, EVA adhesive film has strong weather resistance, excellent UV resistance, oxidation resistance and moisture resistance, and can maintain long-term stability in various harsh environments to ensure the long-term service life of components.

Secondly, the EVA adhesive film has excellent adhesion performance and can maintain strong adhesion under high temperature and high humidity conditions, so as to effectively fix all parts of the photovoltaic module and prevent the peeling and aging of the material. This characteristic enables the EVA film to form a good protective layer during the encapsulation process to resist damage to the solar cell by the external environment.

In addition, EVA adhesive film has excellent processability and can be combined with other materials such as glass and backplanes through the hot pressing process to achieve efficient encapsulation. Its flexibility and toughness make machining processes such as molding and cutting more convenient, increasing productivity.

In short, EVA adhesive film has become an indispensable and important part of photovoltaic packaging materials due to its many advantages such as transparency, adhesive performance, weather resistance and processing ability, and is widely used in the manufacture of solar cell modules.