Time：

2022-07-18

The demand for photovoltaic EVA has greatly increased, and the top 14 foreign EVA manufacturers The photovoltaic industry is one of the industries with the fastest growth in the past two years. As a polymer material industry personnel, one of the most concerned areas is the film of photovoltaic double-glass modules, mainly including EVA film and POE film. The main component of EVA film is EVA, plus various additives, such as cross-linking agent, thickener, antioxidant, light stabilizer, etc. EVA has become the preferred material for photovoltaic module packaging before 2014 due to its excellent packaging performance, good aging resistance and low price. It should be pointed out that photovoltaic-grade EVA has higher requirements on product quality, mainly in terms of VA content, weather resistance, and product stability. Once EVA ages, it will cause fading, delamination and foaming of photovoltaic modules. Not all EVAs can be used in photovoltaics. At present, foreign-funded products are still the majority. With the development of the photovoltaic industry, the demand for photovoltaic-grade EVA is even stronger, and many companies continue to increase production. EVA is the English abbreviation of ethylene-vinyl acetate copolymer, which is a random copolymer composed of non-polar, crystalline ethylene monomer and strong polar, non-crystalline vinyl acetate monomer (also known as VA).