Photovoltaic (PV) films are essential for generating power from solar radiation. These films are mixed with different additives to improve their performance. POE (Polyolefin Elastomer) grafting silane is one such addition. The purpose of POE grafting silane additives in photovoltaic films is investigated in this article, along with their advantages and contributions to the overall performance and longevity of solar modules.

Adhesion Strengthening

Photovoltaic films’ adhesive properties are enhanced with POE grafting silane additions. These additives have silane groups in them, which react with the surface of the film to create a strong link between the layers. The ensuing covalent bonds strengthen the film’s adherence to the front sheet, backsheet, and other parts, guarding against delamination and guaranteeing the module’s structural integrity.

Enhancing Moisture Resistance

Photovoltaic films’ resistance to moisture is improved by POE grafting silane additions. These additives reduce the risk of corrosion and performance degradation by decreasing the entrance of moisture into the film by producing a protective barrier. The enhanced capacity to withstand moisture is a factor that enhances the operational stability and long-term dependability of solar modules, especially in humid or coastal settings.

Optimization of Light Transmission

The light transmission capabilities of photovoltaic films are enhanced by POE grafting silane compounds. By smoothing down the film’s surface, these chemicals lessen light reflection and scattering. More light is thereby absorbed by the solar cells underneath, increasing the module’s overall power output capacity and energy conversion efficiency.

Improvement of Electrical Performance

POE grafting silane additions are important for improving photovoltaic films’ electrical performance. Through improved film-active layer contact, these additives lower electrical losses and increase charge carrier mobility in the solar cells. As a result, the solar module produces more current and generates power more efficiently.

Weatherability and Durability

POE grafting silane additions help make photovoltaic films more weatherproof and durable. The film’s resistance to UV rays, thermal cycling, and environmental stressors is improved by these additions. Through the preservation of mechanical integrity and optical qualities throughout the module’s lifespan, these additives guarantee long-term dependability and performance under diverse environmental circumstances.

Processability and Compatibility

POE grafting silane additions have good compatibility with other PVF constituents such encapsulant compounds or ethylene vinyl acetate (EVA). Because of their interoperability, current film manufacturing methods can be easily integrated with them without requiring major changes. Their suitability for large-scale production and seamless integration into the existing solar module manufacturing processes stems from their compatibility and processability.

To sum up, POE grafting silane additions are essential for raising the efficiency and dependability of solar films. They increase durability, optimize light transmission, strengthen adhesion, improve moisture resistance, and improve electrical performance. These additives are a viable option for increasing the lifetime and efficiency of photovoltaic films in solar module applications due to their compatibility and processability.

We must apply the proper photovoltaic packaging film additives (specifically applied to photovoltaic film-level hot melt adhesives) in order to increase the success rate of photovoltaic packaging film encapsulation. Additionally, it was found that the EVA film exhibited severe potential-induced deterioration (PID) during the operation of photovoltaic power plants, which caused a large decrease in the power plant’s output power. The primary benefit of POE film over EVA film is its low water vapor transmission rate and high volume resistivity, which guarantee the long-term aging resistance and safety of solar modules in hot and humid environments, enabling their long-lasting and effective use.

The yield of photovoltaic panels is significantly impacted by the adhesion between solar silicon crystal panels and photovoltaic packaging films. Adding chemicals to solar packaging films is a crucial step in achieving this adherence. The yield will increase when additives are used because the film’s and the solar silicon crystal panel’s adhesion will be more effective.

Dedicated to the research and development, manufacturing, and servicing of photovoltaic packaging film additives, COACE boasts an R&D team headed by multiple senior engineers and physicians. The majority of consumers use COAce solar packaging film additives because of their high resistivity, good fluidity, low crystal point, high grafting rate, and high transparency!