What is the process flow of high-adhesion EVA film?

High-adhesion EVA film is a polymer material widely used in photovoltaic module packaging. Its process flow mainly includes the following steps:

1. Raw material preparation: First, you need to prepare EVA resin, which is an ethylene-vinyl acetate copolymer with excellent hot melt and adhesive properties. At the same time, necessary additives, such as antioxidants, plasticizers, etc., need to be prepared to improve the performance of the film.

2. Mixing: Mix the EVA resin and additives at high temperature to ensure that each component is evenly distributed and form a uniform mixture.

3. Extrusion: Extrude the mixed EVA mixture through an extruder to form a film with a certain thickness and width.

4. Cooling: The extruded film needs to be cooled by cooling rollers to fix its shape and size.

5. Rewinding: The cooled film is rolled up by a rewinder to form a roll product that is easy to store and transport.

6. Inspection: Conduct appearance and performance inspection on the rolled EVA film to ensure that it meets the required adhesion and quality standards.

7. Packaging: Packed with qualified plastic film to protect it from damage during transportation and storage.

The entire process requires strict control of parameters such as temperature, pressure, and speed to ensure the quality and performance of the EVA film. Through this process, EVA film with high adhesion can be produced to meet the needs of photovoltaic module packaging.