What is the use of EVA?

Ethylene-vinyl acetate copolymer resin (EVA resin for short) is the fourth largest ethylene series polymer after high density polyethylene, low density polyethylene and linear low density polyethylene.

Compared with polyethylene, EVA has been widely used in the development of EVA due to the introduction of vinyl acetate (VA) monomer into the molecular chain, which reduces the high crystallinity and improves flexibility, impact resistance, filler compatibility and heat sealing function. Foam shoe material, sporting goods, packaging lining, hot melt adhesive, wire and cable and toys, etc.

Examples of the application of EVA products in our lives

1. Foam shoe material

Shoe material is the main application area of EVA resin in my country. In the EVA resin used in shoe materials, the vinyl acetate content is generally 15% to 22%. Because EVA resin blended foam products have the functions of softness, good elasticity and chemical corrosion resistance, they are widely used in the soles and interior materials of advanced travel shoes, hiking shoes, slippers and sandals.

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2. Sporting goods

EVA material has excellent anti-corrosion, soft and comfortable feel, light weight, unique waterproof function, not easy to deform when used on sports equipment handles, quick-drying appearance, and will not increase the burden of carrying.

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3. Packing lining

The eva packaging lining has excellent shockproof and decompression effect, the material itself is green and environmentally friendly, and has good flame retardant and waterproof effects, especially heat insulation and moisture resistance, which greatly improves the protection of the product.

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4. Hot melt adhesive

The hot melt adhesive with EVA resin as the main component is very suitable for automatic assembly line production because it does not contain solvent, does not pollute the environment and has high safety, so it is widely used in book binding, furniture edge banding, cars and household appliances. installation, carpet coating and metal anti-corrosion coating.

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5. Wire and cable

With the continuous development of computer and network engineering, people use more and more halogen-free flame retardant cables and silane cross-linked cables for the safety of computer rooms. Not only that, EVA resin has excellent filler inclusion and crosslinkability.

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6.EVA toys

Toys made of EVA resin have excellent softness and elasticity, and at the same time, the surface gloss and chemical stability are also very good. They are anti-aging, ozone-resistant, non-toxic, and are very good environmental protection materials.

EVA puzzles, swimming boards, shower caps, pet toys, etc. belong to the soft body, will not hurt the skin, no longer afraid of being sore or bruising the gums when eating toys.