Brief Introduction of 1. EVA Solar Adhesive Film

Photovoltaic film production lineEVAAdhesive film is a kind of thermosetting adhesive film, can be used for glass intermediate glue, dueEVAThe advantages of adhesive film in adhesion, durability and optical properties make it more and more widely used in current components and various optical products. 

1. BecauseEVAThe excellent characteristics of the film, is the photovoltaic film production line power generation board more commonly used packaging materials. It has the following advantages:

(1) Good transparency and strong adhesion can firmly bond the glass and silicon on the photovoltaic power generation board.

(2) has good durability can resist high temperature, humidity and ultraviolet rays, etc., significantly improve the service life of photovoltaic panels

（3）EVA Photovoltaic Film Production LineThe adhesive film has no viscosity at room temperature, which is convenient for cutting operation. Thermal crosslinking curing and bond strengthening reactions occur by hot pressing, resulting in a permanent adhesive seal. 

After several years of development, the current film to achieve localization, and exported to foreign countries. In terms of raw materials, only three domestic companies had the ability to produce photovoltaic grade.EVARaw materials. Due to the continuous strengthening of people's awareness of environmental protection in recent years, especially in China, the goal of "carbon neutrality" and "carbon peak" is put forward. Forcing people's thirst for new energy. Several large domestic chemical enterprises have establishedEVAraw material production line, is expected2024In the year, the domestic capacity to produce photovoltaic gradeEVAPhotovoltaic film production line enterprises will reach about8Home. Raw materials gradually get rid of the monopoly of foreign enterprises.

2. EVAPhotovoltaic film production lineIntroduction of production equipment

EVA photovoltaic film production line using the tape casting process, production.EVASolar cell encapsulation film. The main raw material is vinyl acetate copolymerEVAAfter adding additives, the product is cast and extruded by heating.

(1) ExtruderEVASpecial single screw extrusion, screw barrel constant temperature circulating water cooling system to solve the problemEVAThe technical difficulties of plasticization and non-crosslinking.

(2) The roller body part adopts double-sided embossing, and solves the technical difficulties of adhesive roller.

(3) The cooling part adopts cooling rollers and stress-eliminating cooling beds to make the film run smoothly and fully set to ensure that the shrinkage rate is less3%.

(4) The whole line is adoptedPLCFully automatic control to realize the operation of man-machine interface.

(5) The production line is equipped with an online quality monitoring and control system to ensure the product qualification rate.

(6)Patented design micro tension winder, the line speed of the whole production line can reach18m/min 

The above is aboutPhotovoltaic film production linePackaging material-EVA solar packaging film and its production equipment related content introduction, pay attention to Haijingke to learn more, Haijingke Machinery is an innovative technology enterprise integrating research and development, manufacturing, sales and service, specializing in the development of plastic sheet machines, film machines, casting machines, and provide users with a complete set of solutions for plastic packaging machinery. Welcome to inquire.

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