Hanwha Solutions' thin-film EVA (ethylene-vinyl acetate copolymer), launched in 2014, shines like a jewel in the field of polymer materials, excelling in photovoltaic encapsulation and high-end packaging with its superior optical properties and processing characteristics. This innovative material employs an advanced continuous bulk polymerization process, like a skilled perfumer perfectly blending the rigidity of ethylene monomers with the flexibility of vinyl acetate (VA content controlled at 28%-33%), ultimately crystallizing into a top-tier polymer with uniform VA distribution and a precisely controllable melt index (MI 5-30g/10min).
Its technological highlights are as dazzling as stars: light transmittance exceeding 92%, comparable to crystal clarity; crosslinking speed 20% faster than traditional products, as if endowed with accelerated magic; and resistance to PID (potential-induced degradation) reaching industry-leading levels, constructing an indestructible protective shield for photovoltaic modules. Through its unique molecular chain structure design, the material maintains excellent dimensional stability in harsh environments ranging from -40℃ to 85℃, much like a graceful dancer maintaining an elegant posture on a stage of fluctuating temperatures.
In application fields, this EVA is a versatile performer: as the "heart encapsulation material" of photovoltaic modules, its 0.45-0.55mm film thickness is as thin as a cicada's wing yet incredibly strong; in the food and pharmaceutical packaging market, its FDA-certified environmentally friendly characteristics make it a green ambassador for sustainable development; and in the field of specialty agricultural films, its superior anti-fogging and UV-blocking properties have earned it the affectionate title of "smart protective clothing for crops." Hanwha's patented surface treatment technology has increased the peel strength between the product and glass and metal to over 35N/cm, setting a new benchmark for interfacial adhesion.