Ethylene Vinyl Acetate (EVA) as a polymer material, ethylene vinyl acetate (Eva) has quietly penetrated into all aspects of modern life due to its light weight, flexibility and processability.

1. Core characteristics of EVA material

◦ Flexibility and shock absorption: EVA's molecular chain contains vinyl acetate (VA) units, giving the material excellent elasticity and impact resistance, making it the material of choice for the midsole of athletic shoes.

◦ Weather resistance and insulation: high light transmittance (more than 90%) and UV resistance make it the core material for the packaging film of photovoltaic modules.

◦ Foamability: Through the foaming process can be made into a low-density sponge structure, widely used in packaging lining and children's floor MATS.

2. Cross-border application cases

◦ Shoe material field: Nike, Adidas and other brands of EVA foam midsole technology, to achieve the balance of lightweight sports shoes and energy rebound.

◦ New energy field: In the photovoltaic industry, EVA film protects solar cells from environmental erosion, and the global market share exceeds 50% (2023 data).

◦ Medical field: For the manufacture of medical catheters and orthopaedic instruments, which meet the strict requirements of non-toxic and antiseptic resistance.

With the progress of material modification technology, EVA is extending from the traditional industrial field to the high value-added industry, becoming the "invisible champion" in the era of lightweight.