The creation and application of renewable energy has drawn more attention in light of the depletion of fossil fuels and the effects of global warming. Solar energy has grown quickly and is a clean, safe, and renewable energy source. It also has the benefit of being all-encompassing and limitless. The photovoltaic module is the main component of the solar power producing system. I think a lot of individuals have already outfitted their homes with solar power producing systems.
This gadget, which was previously exclusive to spacecrafts and satellites, has been gradually making its way into regular people’s homes and revealing its mystery shroud.
Solar energy is converted into electrical energy using photovoltaic modules. High-transmission tempered glass, high-transmission adhesive film, and silicon crystal panels make up its three components. Among these, even though photovoltaic encapsulation film is crucial to the
Although they only make up a small fraction of the total cost, components are crucial to vital aspects including battery packing quality, power generating efficiency, and service life.
EVA film and POE film are the two primary categories into which photovoltaic packaging films fall. Each kind of adhesive film has benefits and drawbacks of its own.
EVA is the primary ingredient of EVA film, however it also includes thickeners and cross-linking agents as additions. It has traditionally been the go-to option for packing solar modules because of its affordable cost and strong packaging capabilities.
The recommended installation material. Unfortunately, the potential induced decay (PID) flaw in EVA film results in a comparatively limited lifespan.
POE film is a photovoltaic module encapsulation material that is both very dependable and efficient. It performs exceptionally well against aging, as well as being an ion and water vapor barrier. It is the standard material used in double glass modules. But POE film’s processability is a little bit worse.
An increasing number of firms are starting to use the EVA+POE combined packaging approach for assembly in the rivalry between EVA and POE films. More and more users are choosing this new approach.
| Advantage | Disadvantage | |
| EVA | Mature technology and low cost It can meet the requirements of high light transmittance, bondability, UV resistance and high temperature resistance required for photovoltaic packaging materials. |
High water vapor transmission rate and high PID attenuation Release of VA corrodes metal parts in components |
| POE | The Tg temperature of POE is lower, ensuring that it maintains good performance at low temperatures, and the elongation at break of POE is The efficiency is much better than EVA. At different temperatures, the volume resistivity of POE is 1-2 orders of magnitude higher than that of EVA; POE film has excellent waterproof (penetration) ability. In the test, its resistance to water vapor penetration is 8 times that of EVA film and it also has strong resistance to corrosion and aging. PERC double-glass bifacial modules must have a POE package on one side |
Compared with EVA resin, POE resin has low polarity, and polar additives can easily precipitate from the inside of the POE film to the surface of the film, resulting in a reduction in the friction coefficient of the film surface. |
| EPE | Reduce the probability of wrong pieces and reduce costs. The POE in the middle plays a blocking role. | The bonding strength between the E layer and the P layer, and the long-term water resistance of the E layer |
Whichever approach is used, it should be remembered that adding the proper photovoltaic packaging film additives—which are specifically designed for photovoltaic film grade hot melt adhesive—is necessary to increase the packing success rate of solar packaging film.
The yield of the photovoltaic panel is significantly influenced by the adhesion between the solar silicon crystal panel and the photovoltaic packaging film. To guarantee excellent adhesion, adding chemicals to solar encapsulation films is essential. Supplementary
The yield of photovoltaic modules may be increased by adding to the adhesive film to effectively increase the adhesion between the film and the solar silicon crystal panels.
When choosing and optimizing photovoltaic packaging films and additives, we must carefully weigh the benefits and drawbacks of various film types as well as the effects of additives on bonding performance. Select only the appropriate one.
The only way to raise the quality and efficiency of solar modules is to choose the right type of film and optimize the additive recipe.
The quality and efficiency of solar modules can only be increased by choosing the right film type and refining the additive mix.
To sum up, an essential component of the solar power generating system is the choice and fine-tuning of photovoltaic packaging films and components. We may increase the efficiency and dependability of photovoltaic modules and more fully realize the potential of solar energy by carefully choosing the type of film and fine-tuning the additive formula. Let’s collaborate to advance photovoltaic packaging technology and encourage the use and acceptance of renewable energy sources.
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