Introduction
The effectiveness and longevity of photovoltaic systems depend heavily on the long-term stability and weather resistance of photovoltaic thin films, which constitute a significant part of solar power generation. The aging of conventional photovoltaic films with coupling agents is a problem that has been creatively solved with the introduction of silane grafting POE additives. The aging issues and phenomena brought on by conventional coupling agents are covered in detail in this article along with the benefits of silane-grafted POE additives. Comparison and analysis are used to demonstrate the enhancement effect of silane-grafted POE masterbatch in photovoltaic film applications.
The stability and weather resistance of photovoltaic film, one of the essential components for solar photoelectric conversion, have a significant effect on the functionality and lifespan of photovoltaic systems. Nevertheless, aging issues with conventional photovoltaic films that use coupling agents restrict the lifespan and efficiency of solar films. To address their aging issues, silane grafting POE additives are added as a novel modification to photovoltaic films.
Issues and phenomena related to aging brought on by conventional coupling agents
Coupling agents are used in conventional photovoltaic adhesive films to increase the adhesion and compatibility of polymers with inorganic particles. Long-term use, however, will cause the coupling agent to age and reduce the performance of photovoltaic films. Material degradation, a reduction in mechanical performance, an increase in color difference, etc. are the main signs of aging issues. Photovoltaic films’ dependability and lifespan are restricted by these issues.
POE additives’ benefits for silane grafting technology
A novel kind of modifier is the silane grafting POE additive. Its benefit is that it helps with photovoltaic film’s aging issue. To improve the material’s resilience to aging and weathering, silane grafted POE masterbatch can create covalent connections with the polymer matrix. Furthermore, silane grafting POE additives exhibit superior adhesion, thermal stability, and UV resistance, enhancing the photovoltaic film’s lifespan and performance stability.
Analyzing and contrasting conventional coupling agents with silane grafting POE masterbatch
Conventional POE film is pre-mixed and soaked in silane, acrylate co-crosslinking agent, and cross-linking agent. Production efficiency will be impacted since liquid adsorption will now take a lengthy time—it may take eight hours or greater. At the discharge port, slippage will result from incomplete precipitation.
Incomplete adsorption will result in the liquid leaking, migrating to the surface, becoming sticky and thick, and readily blocking the vacuum port when the component factory encapsulates the cast film.
The finished component is cured at a temperature as high as 160 degrees. The PID will be impacted and the aging resistance will decline if the silane monomer cannot be rectified quickly.
Graft masterbatch is used by POE membrane.
POE/acrylate (small amount)/cross-linking agent/acrylic acid graft masterbatch/silane graft masterbatch/silane (small amount)
The extrusion slippage phenomena will be enhanced, the total amount of liquid will be decreased, and the soaking time will be shortened.
Vacuum blocking, slippage and shifting, and scrapping will all be improved after extrusion and tape-casting at 80 degrees because the grafting is comparatively stable and the silane is fixed on the POE and less prone to migration.
Finally, the adhesive efficiency will be improved in the high-temperature stage because the grafted silane will share the curing processes, which will ultimately improve the PID aging resistance of the entire component. The benefits of silane grafted POE masterbatch in solar film applications are evident when we contrast its application effects and performance with those of typical coupling agents. The POE masterbatch grafted with silane exhibits superior material stability, increased weather resistance, and extended service life. Additionally, silane grafting POE additions can enhance the photovoltaic films’ mechanical characteristics, resistance to chemical corrosion, and resistance to temperature changes, thereby offering a dependable assurance of the films’ long-term stable operation.
In conclusion
Silane grafting POE additions are a novel kind of modifier with a number of benefits for use in solar film applications. We can conclude that silane grafted POE masterbatch may successfully address the aging problem of solar film and increase its stability and weather resistance through comparison and analysis with existing coupling agents. Silane grafting POE additions can enhance the mechanical characteristics, chemical corrosion resistance, temperature resistance, and age resistance of photovoltaic films.
They also have outstanding resilience to weather, aging, UV light, and thermal fluctuations. For photovoltaic film applications, silane grafted POE masterbatch is a great option because of these benefits, which offer a dependable assurance for the long-term steady operation of solar systems.
Coace® R1030 is a high silane content, high transparency ethylene-octene copolymer that has been functionalized with silane. In addition to advancing the development of solar photovoltaic technology, silane grafting POE additions and performance optimization further enhance the efficiency and dependability of photovoltaic films.
