EVA POE Encapsulation Film Extrusion Line
GWELL as China Plastic Extruder Supplier， The EVA POE encapsulation film extrusion line adopts a tape casting process and takes Poe and EVA as the main raw materials to produce POE and EVA encapsulation films, which are mainly used for the encapsulation of crystalline silicon and thin-film solar cell modules. Due to the advantages of POE and EVA encapsulation film in adhesion, aging resistance, and optical properties, it is more and more widely used in battery modules and various optical products.
Key words：Sheet Extrusion Line
Category：
EVA POE solar film extrusion line
Description
Features of Gwell's EVA POE Encapsulation Film Extrusion Line:
As a prominent plastic extruder manufacturer based in China, GWELL specializes in the production of advanced extrusion lines, specifically the EVA POE Encapsulation Film Extrusion Line and the PVDF PP Solar Plate Extrusion Line. These state-of-the-art lines utilize the casting process to efficiently produce high-quality POE (Polyolefin Elastomer) and EVA (Ethylene Vinyl Acetate) encapsulation films. The primary raw materials for these films are POE and EVA, which are known for their exceptional properties and versatility. These encapsulation films play a crucial role in the packaging of crystalline silicon and thin film solar cell modules, providing essential protection and durability. The demand for these films has surged due to their remarkable advantages, including excellent adhesion, superior aging resistance, and outstanding optical properties. As a result, POE and EVA packaging films are increasingly being adopted in a variety of applications, particularly in battery modules and numerous optical products. The ability of these films to enhance the performance and longevity of solar modules makes them an essential component in the renewable energy sector. With the growing emphasis on sustainable energy solutions, GWELL’s innovative extrusion lines are positioned to meet the rising demand for high-quality encapsulation films, contributing to advancements in solar technology and energy efficiency. This trend signifies a broader movement towards the integration of reliable materials that can withstand environmental challenges while maintaining their functional integrity over time. Thus, GWELL continues to lead in the production of materials that support the evolution of the solar energy industry and various optical applications.
Process Flows
Extruder —- Screen changer —– Melt pump —– T-die —— Calender —– Thickness Scanner —-Cooling Bracket —-Cutting Knife —- Haul-off —-Winder
Performance of Gwell’s EVA POE encapsulation film extrusion line
- The whole EVA POE encapsulation film extrusion line adopts low tension control to ensure that the product shrinkage is controlled within 3%.
- Multi machine co-extrusion POE single screw extrusion, screw barrel constant temperature circulating water cooling system.
- The roller body is embossed on both sides.
- The cooling part adopts cooling roller and stress relief device to make the rubber film run smoothly and fully set, so as to ensure that the shrinkage rate is less than 3%.
- The whole line adopts PLC automatic control to realize the operation of man-machine interface.
- The production line is equipped with online quality monitoring and control system to ensure the product qualification rate.
Characteristics of Gwell’s EVA POE encapsulation film extrusion line:
- The stress removal device can effectively remove the residual stress generated in the stretching and production process of EVA POE film online, so as to better solve the problem of heat shrinkage of EVA POE solar film extrusion line.
- The specially designed low-temperature extrusion system prevents the curing and cross linking of additives in advance under the condition of mixing and plasticization.
- The special design of the tape casting part solves the problems of roll sticking and peeling.
Advantages of EVA POE encapsulation film extrusion line:
- Good transparency and strong adhesion can firmly bond the glass and silicon wafer on the photovoltaic power generation panel together.
- It has good durability, can resist high temperature, humidity, and ultraviolet light, and significantly improve the service life of photovoltaic panels
- China EVA POE encapsulation film has no viscosity at room temperature, which is convenient for cutting operation. After hot pressing, thermal cross linking curing and bonding enhancement reaction will occur, resulting in permanent bonding and sealing.
- High transparency and high adhesion can be applied to various interfaces, including glass, metal and plastics, such as pet.
- Good durability can resist high temperature, moisture, ultraviolet and so on.
- Easy to store. When stored at room temperature, the adhesion of EVA is not affected by humidity and absorbent film.
- Compared with PVB, it has stronger sound insulation effect, especially high-frequency sound effect.
parameters of EVA POE encapsulation film extrusion line:
- Light transmittance: glass / adhesive film / glass, air as reference, ≥ 91%;
- Water absorption: soak at room temperature for 24h, ≤ 0.1%;
- Cross linking degree: xylene extraction 5h, 80% ~ 90%;
- Peel strength: adhesive film / glass: ≥ 50 N / cm; Adhesive film / TPT: ≥ 30n / cm;
- UV aging resistance (UV irradiation 1000h, 83 ℃): yellowing index ≤ 2;
- Heat aging resistance (1000h, 85 ℃): yellowing index ≤ 2;
- Damp heat aging resistance (1000h, rh85%, 85 ℃): yellowing index ≤ 2;
- Blue light EVA POE encapsulation film (through 280nm ultraviolet light);
- General EVA POE encapsulation film (through 310nm ultraviolet light);
- UV blocking EVA POE encapsulation film (UV light is not transmitted);
- Light transmittance ≥ 91%;
- Cross linking degree 80% ~ 90%;
- 1000h UV aging, ≤ 2;
- 1000h damp heat aging, ≤ 1.
Parameter
| Extruder Type | GWS160 | GWS180 | |
| Raw material | EVA, POE | ||
| Layers | EVA，POE single layer | ||
| Net width | 2200mm-2800mm | ||
| Thickness range | 0.2mm-1mm | ||
| Max linear speed | 15m/min-18m/min | ||
| Application | EVA、POE、EPE encapsulation film for PV | ||
Application
Because of EVA POE encapsulation film superior adhesion,durability and optical characteristics,which is mainly used for
- crystalline silicon and solar module encapsulation for PV
- dressing in the field.
- optical products.
EVA glass laminated film is widely used in:
Deep processing of safety flat laminated glass, arc laminated glass, process laminated glass, bulletproof glass, color changing laminated glass, conductive smart glass, solar cell and other special glass.
With low melting point and easy flow, it can be applied to the gluing process of all kinds of glass, such as embossed glass, tempered glass, curved glass and so on.
Low temperature and low melting point EVA hot melt adhesive film is characterized by low temperature and low melting point. It is mainly applicable to composite materials with low temperature requirements or certain low temperature resistance requirements. Its water washing resistance is poor, and it is not resistant to dry cleaning. It is resistant to high temperature of 80 degrees and low temperature of minus 20 degrees. EVA hot melt adhesive film has three main melting points, namely 80 degrees, 90 degrees and 110 degrees. Among them, EVA hot melt adhesive film with melting point of 80 degrees is widely used. In addition, EVA hot melt adhesive film also has odorless, environmental protection, good tensile performance, high bonding strength and good elasticity. When the EVA adhesive film is not used, the color is white fog surface. The melted EVA hot melt adhesive is light brown or white and has good elastic properties.
Client
About Gwell
Innovation drives enterprise progress. Relying on the group’s strong technology, equipment strength and innovation spirit, Gwell is committed to the development of high-tech products and the international market. Gwell also actively exchanges and cooperates with world-class scientific research institutions. The new technologies, new processes and new products developed by Gwell are widely used in building materials(PP hollow sheet extrusion machine, PC optic extrusion machine), home appliances(SPC floor extrusion machine), packaging(PET sheet extrusion machine, EVOH film extrusion machine),
medical treatment(PVC rigid sheet extrusion machine), automobiles(TPU film extrusion machine, PVB film extrusion machine), new energy(EVA solar film extrusion machine), aerospace(TPU film extrusion machine), rail transit(waterproof film extrusion machine) and other fields, which are closely related to human life.
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Contact information
Service supervision
Tel: +86-18861952608
WhatsApp: +86-18861952608
Email: salej@gwell.cn
Address: No. 8 Huyue East Road, Longchi Street, Liuhe District, Nanjing, Jiangsu Province，China
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Copyright 2024 China Gwell Machinery Co., Ltd. All Rights Reserved. Powered by: www.300.cn