EVA plastic granules are thermoplastic elastomers copolymerized from ethylene (E) and vinyl acetate (VA), with VA content typically ranging from 5% to 40%. Their core properties stem from the introduction of vinyl acetate monomers into the molecular chain, significantly reducing crystallinity and endowing the material with excellent flexibility, impact resistance, and filler compatibility. In the footwear industry, EVA granules with a VA content of 15%-22% are widely used in midsole foaming, such as in the soles of hiking and mountaineering shoes, where their elasticity and chemical resistance make them a substitute for traditional rubber. The film industry relies on EVA with high VA content (25%-40%). For example, functional greenhouse films improve light transmittance and anti-fogging properties by adding EVA, extending their lifespan to over four months, far exceeding that of ordinary polyethylene films. In the third quarter of 2025, China's EVA production reached 773,400 tons, a year-on-year increase of 35.47%. Photovoltaic encapsulant film was the largest consumer sector, accounting for more than 50%, which drove the explosive growth of EVA particles in the new energy field.
