Universal Photovoltaic PVB Encapsulation Film Production Line Use Single Screw Extruder For BIPV Panels

PVB Encapsulation Film Production Line Use Single Screw Extruder For BIPV Panels

PV building integration, also known as BIPV (Building Integrated Photovoltaics), refers to the integration of solar photovoltaic modules into building materials and structures. One important component in BIPV systems is PVB (Polyvinyl Butyral) glass interlayer film.

PVB glass interlayer film is a crucial element in the construction of BIPV systems. It has several significant effects and implications for PV building integration.

1. Enhanced energy efficiency: PVB glass interlayer film helps improve the energy efficiency of buildings by converting sunlight into electricity. The solar photovoltaic modules embedded with PVB film can generate clean and renewable energy to power various electrical systems within the building, reducing reliance on non-renewable energy sources.

2. Aesthetically pleasing integration: PVB glass interlayer film allows for seamless integration of solar panels into building facades, windows, and roofs. By using PVB film, architects and designers have more flexibility in incorporating solar panels into the building's design, enabling the creation of visually appealing and modern structures.

3. Structural stability and safety: The unique adhesive properties of PVB film provide structural integrity to the photovoltaic modules. The film acts as a bonding agent, improving the durability, impact resistance, and overall safety of the BIPV system. It ensures that the embedded solar panels can withstand various environmental conditions, including wind, rain, and snow.

4. Noise reduction: PVB glass interlayer film possesses sound-damping properties that contribute to reducing external noise inside the building. This feature enhances the comfort of occupants and creates a quieter indoor environment, especially in busy urban areas.

5. Sustainable development: By adopting PV building integration with PVB glass interlayer film, we can promote sustainable development. The utilization of solar energy reduces greenhouse gas emissions, leading to a cleaner and greener environment. Additionally, the integration of renewable energy systems into buildings allows for greater energy independence and resilience.

In conclusion, PVB glass interlayer films play a crucial role in the effectiveness and significance of PV building integration. They enhance energy efficiency, contribute to aesthetic integration, improve structural stability, reduce noise, and promote sustainable development. Through the use of PVB film, buildings can become more energy-efficient and environmentally friendly while maintaining their functionality and visual appeal.

At present, the packaging forms of photovoltaic modules mainly include glass-EVA-backsheet and glass-PVB-glass. I will describe the characteristics of EVA and PVB encapsulation films respectively.

Photovoltaic industry is a rapidly developing emerging industry that converts solar energy into electric energy. Silicon solar cell modules are mainly used in large-scale grid-connected power generation, off-grid power stations, BIPV photovoltaic building integration, etc. The encapsulation films mainly include EVA and PVB.

1. Introduction of PVB encapsulation film production line

The PVB encapsulation film production line manufactured by GWELL adopts unique design and advanced manufacturing technology. Improve the stability and automation of the machine. The feeding system is connected with the extruder to realize online accurate proportioning of raw materials, so as to stabilize the quality of PVB encapsulation film and reduce labor cost. The specially designed rollers are used to cool the PVB encapsulation film evenly, reducing the stress caused by uneven cooling and heating, thereby ensuring the correct shrinkage rate.PVB encapsulation film production line

2. Advantages of PVB encapsulation film:

PVB encapsulation film is mainly used for BIPV modules, the structure is steel glass (ultra white)-PVB-cell-PVB-tempered glass (normal)

3. Comparison of PVB encapsulation film and EVA encapsulation film:

EVA is a thermosetting resin with cross-linking reaction; PVB is a thermoplastic resin with reproducibility and no cross-linking reaction;

The domestic glass curtain wall specification clearly puts forward the regulation of "application of PVB". BIPV photovoltaic modules can be made by PVB instead of EVA to achieve a longer service life.

PVB has strong adhesive properties, and its safety is higher than that of EVA film;

EVA has many formulas, and the packaging process is not easy to control; the formula of PVB film is simple, the quality control is stable, and the shelf life is long;

PVB film has poor fluidity, which can prevent film overflow during processing.

PVB encapsulation film production line

4.Machine model of PVB encapsulation Film production line