Photovoltaic (PV) technology has brought about a revolution in the field of renewable energy by offering a method that is both environmentally friendly and highly effective for harnessing solar power. The encapsulation film, which is commonly produced from ethylene-vinyl acetate (EVA), is a crucial component in terms of the longevity and performance of photovoltaic modules. This film fulfills the function of a protective barrier, shielding the fragile solar cells from the damaging effects of the surrounding environment. There are many additives that are used in EVA films in order to improve their performance and ensure that they last longer. Anti-aging and anti-acidification agents are an example of those that are particularly important among these. In order to ensure that photovoltaic modules continue to function effectively and without compromise throughout their lifetime, these additives are of critical importance.

Anti-aging and anti-acidification additives serve a number of important functions

Reducing the Acidity of Acidic Byproducts

In order to neutralize acidic byproducts that are produced within the EVA film as a result of exposure to the environment, anti-acidification additives are particularly developed. Acetic acid is one of the byproducts that are produced as a result of the degradation of the EVA polymer that occurs when it is subjected to thermal and UV stress.
The additives prevent the corrosive effects that can damage the solar cells and other components of the PV module by neutralizing these acids. As a result, the lifespan of the module is increased, which is a benefit.

In order to improve thermal stability

Functionality: Thermal stabilizers, which are included in anti-aging chemicals, are responsible for increasing the EVA film’s resistance to high temperatures.
One of the advantages is that enhanced thermal stability guarantees that the encapsulant will keep its protective characteristics even when subjected to extremely high temperatures. This helps to prevent premature aging and ensures that the performance of the PV module is not compromised.

Increasing Resistance to UV Rays

UV stabilizers in anti-aging additives have the ability to either absorb or reflect ultraviolet radiation, which prevents the chains of the EVA polymer from breaking down.
The advantage is that increased UV resistance slows down the pace of photodegradation, which guarantees that the encapsulant will continue to be effective in protecting the solar cells from harm caused by UV radiation.
Keeping the Optical Clarity Available

Anti-aging and anti-acidification additives are meant to have a minimal impact on the optical qualities of the EVA film. This is the function of these additives.
Advantage: It is essential to keep the optical clarity high in order to maximize the amount of light that is transmitted to the solar cells. This will ensure that the photovoltaic module performs at its highest possible efficiency.

Aiming to Improve the Mechanical Properties

Moreover, these additions enhance the mechanical qualities of the EVA film, such as its tensile strength and flexibility, which is another function of the additives.
Benefit: The film is better able to handle physical stresses, such as thermal expansion and contraction, vibrations, and impacts, thanks to the increased mechanical strength. This helps to ensure that the film will become durable over the long run.
Hydrolysis Prevention via Means

As a function, anti-acidification additives frequently slow down the pace of hydrolysis, which is a process that can cause the EVA layer to deteriorate when moisture is present.
The advantage is that lower hydrolysis rates guarantee that the encapsulant will continue to be functional and intact in humid settings, which is essential for preserving the power generation module’s integrity.

Offering Assistance in Dispersion

In order to achieve uniform protection, it is essential to ensure that the additives are effectively dispersed throughout the EVA matrix.
The benefit of uniform dispersion is that it guarantees consistent anti-aging and anti-acidification performance across the entire encapsulant layer. This ensures that all solar cells included within the module are protected in a dependable manner.

Advantages for the Solar Industry Extended Lifespan of Modules Opportunities

These additives considerably enhance the operational life of photovoltaic modules by preventing degradation caused by acidity and aging during the generation of the modules. This decreases the number of times that replacements and maintenance are required, which ultimately results in an increase in the cost-effectiveness of solar energy systems.

Electrochemical Performance That Is Maintained

In order to maintain the electrical performance of photovoltaic modules, anti-aging and anti-acidification features are beneficial. These properties help to preserve the integrity of the EVA encapsulant. When it comes to maximizing energy output and efficiency over the course of the module’s operational life, this is absolutely necessary.
Affordable and Efficient Solution

Utilizing these chemicals results in a reduction in the long-term expenditures that are connected with the degradation of PV modules. Maintaining excellent performance and durability in solar energy projects leads to improved returns on investment, which in turn leads to better returns on investment.

Adaptability in Terms of Application

Because these additives may be adapted to suit a wide variety of photovoltaic (PV) modules, including monocrystalline, polycrystalline, and thin-film technologies, they are appropriate for a wide range of solar applications.

Observance of Environmental and Safety Regulations

This ensures that modern additives do not introduce dangerous substances into the environment or pose dangers to human health. These additions are consistent with international environmental and safety regulations.
The Most Common Applications in Industry

In the Manufacturing of Solar Panels

The incorporation of these chemicals into EVA films by manufacturers allows for the production of photovoltaic modules that have increased resistance to environmental stressors. This ensures that the modules will continue to work reliably throughout their lifetime.

Solar Farms Operating at Usage-Scale

Photovoltaic modules that are able to maintain their functionality over lengthy periods of time are essential for large-scale solar farms. To ensure the dependability and effectiveness of the modules that are utilized in these installations, anti-aging and anti-acidification additives are utilized frequently.
Integrated Solar Power Systems for Homes and Businesses

As a result of the endurance that these additives provide, photovoltaic modules continue to work at a high level while requiring only a small amount of maintenance. This feature is beneficial to both homeowners and businesses.

Photovoltaics that are integrated into buildings (BIPV)

Building-integrated photovoltaic (BIPV) systems, which incorporate solar panels into building structures, necessitate the use of PV modules that are long-lasting and capable of withstanding environmental exposure without surrendering their aesthetic and functional integrity.

Off-Grid and Remote Solar Systems

In areas that are not connected to the grid, the dependability of solar systems is of the utmost importance. Additionally, additives ensure that off-grid installations continue to keep their efficiency and require less regular maintenance, which makes them more ideal for situations that are difficult to maintain.

Schlussfolgerung

The creation of solar encapsulation films that are both long-lasting and effective requires the incorporation of anti-aging and anti-acidification additives as important components. These additives play a significant role in extending the lifespan and performance of photovoltaic modules. They do this by neutralizing acidic byproducts, improving thermal and UV stability, and preserving the mechanical integrity and optical clarity of EVA films. It is impossible to emphasize the significance of these specifically specialized masterbatch additives, as the need for solar energy solutions that are dependable, cost-effective, and environmentally friendly continues to increase. They make certain that photovoltaic modules are able to survive extreme environmental conditions while simultaneously generating energy output that is consistent and efficient, which contributes to the overall success of solar energy projects all over the world.

The adhesion between photovoltaic encapsulation film and solar silicon crystal battery panel has a great impact on the yield rate of photovoltaic panels. The key step to achieve this adhesion is to add photovoltaic encapsulation film additives. After adding the additives, the adhesion between the film and the solar silicon crystal battery panel will be effectively improved, thereby improving the yield rate.

Coaces is committed to the research and development, production and service of photovoltaic encapsulation film additives, and has a research and development team led by many senior engineers and doctors. Coaces photovoltaic encapsulation film additives have the characteristics of high transparency, low crystal point, high grafting rate, good fluidity and high resistivity, and are favored by the majority of users!