China’s EVA supply gap is large, policies promote rapid growth in demand for EVA for photovoltaics
Ethylene-vinyl acetate copolymer (EVA) is a general-purpose polymer with a molecular formula of (C2H4)x.(C4H6O2)y. Generally, the vinyl acetate (VA) content is 5% to 40%. Compared with polyethylene, EVA introduces vinyl acetate monomer into the molecular chain, thereby reducing high crystallinity and improving flexibility, impact resistance, filler compatibility and heat sealing performance. It is widely used…