A manufacturer ZNShine developed for the international photovoltaic market a module with polyurethane structure. According to the company, the panels are the first to receive this type of structure.
According to the company, the equipment is composed of high-quality polyurethane resin and produced through the pultrusion molding process.
“Znshine’s new launch with innovation for replacement of aluminum profile with polyurethane structure emerged thinking about the need to floating power plants or installed in chemical industries, where salts or particles of chemical reagents can easily corrode conventional frames, made of metal”, he highlighted derek wang, Sales Director at ZNShine.
“In this attempt to introduce new technologies for photovoltaic modules, in addition to providing broader uses in different environments, it also brings the benefit of reducing carbon dioxide emissions during their production process,” he added.
“In the future, we will continue to drive new research and development in the photovoltaic industry, to meet the needs of customers and the market, always following sustainability trends and the growing demand for solar energy around the world”, adds Wang.
Features of the polyurethane structure
ZNShine highlights that when using new environmentally friendly materials, changing the structure of the energy industry and promoting the transformation of raw materials, highlights the potential of polyurethane composite material structures. The manufacturer also points out that the new structure has become a good choice for aluminum/steel alloy frames, as a replacement product.
“In view of the new demands constantly presented by the market, polyurethane frame components open up a wider application perspective”, states the company.
The company also highlights that, currently, the material of the photovoltaic structure is mainly aluminum alloy, but its production requires high levels of energy consumption and consequently releases large amounts of carbon dioxide emissions, which contradicts the concept of energy saving and environmental protection.
“The carbon emission of polyurethane is only about 10% of that of the aluminum structure. Therefore, a new environmentally friendly and energy-saving material structure is introduced. Its proposal is extremely interesting and long-lasting, and is an important link in achieving the sustainable development of the entire product”, highlights Wang.
According to the company, polyurethane composite materials have excellent physical properties. After testing, the longitudinal tensile strength and flexural strength of the product can reach more than 1000 Mpa, which is seven times that of aluminum alloy in terms of strength.
Another characteristic highlighted by the manufacturer is that the density of the polyurethane composite material is 2g/cm³, which is equivalent to 2/3 of the density of the aluminum alloy.
“It has unique advantages such that it can replace traditional metal materials. Parts made from polyurethane materials are 15-30% lighter than parts made from traditional aluminum alloys,” reports the company.
In ZNShine's view, the corrosion resistance of polyurethane materials is very remarkable, acid-base salts and other substances have no effect on it, and composite materials will not undergo hydrolysis reaction in humid air and have excellent water and weather resistance. aging by heat and humidity.
“It’s difficult to compare with other metallic materials. Therefore, polyurethane structures will be more useful in photovoltaics, BIPV, offshore photovoltaics, land-based power stations and high-salt, high-humidity environments,” says Wang.
Furthermore, with high volume resistivity, the module is encapsulated with polyurethane structure, which decreases the possibility of forming a leak circuit and helps reduce the occurrence of PID potential-induced attenuation.
The damage from the PID effect results in a decrease in power generation. Therefore, reducing the PID effect can improve the power generation efficiency of solar panels.
“The all-new ZNSHINE polyurethane frame module is an in-depth launch into the utilization of new technologies, materials, and an advancement from traditional metal frame application to new materials. The reliability and diversity of products can be used in more application solutions”, concludes the Sales Director at ZNShine.
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