Ethylene-vinyl acetate (EVA), also known as poly(ethylene-vinyl acetate) (PEVA), is a copolymer of ethylene and vinyl acetate. The weight percent of vinyl acetate usually varies from 10 to 50%, with the remainder being ethylene.

EVA, or ethylene-vinyl acetate, is a pliable, rubber-like plastic widely used in various industries due to its excellent durability and flexibility. This co-polymer is created by combining ethylene and vinyl acetate, two compounds that lend the material its unique characteristics.

Celanese Ateva® EVA polymers manufacture a full line of high- performance ethylene vinyl acetate (EVA) copolymers containing up to 42% vinyl acetate content. Our Ateva ® EVA copolymers, have melt indexes ranging from fractional melts up to ~1000 g/dl and are recognized around the world for their quality and versatility.

Ethylene-vinyl acetate (EVA) is a random copolymer of ethylene and VA whose properties depend on the VA content and MW. For example, EVA with a VA content of 3–12% is similar in flexibility to plasticized PVC.

Ethylene vinyl acetate (EVA) plastic consists of randomly distributed vinyl acetate chains interspersed with ethylene -ₓy chains. EVA is the result of copolymerization between ethylene and vinyl acetate, produced via block copolymerization or solution copolymerization.

EVA is an elastomeric polymer that produces materials, which are “rubber-like” in softness and flexibility. The material has good low-temperature toughness, stress-crack resistance, hot and resistance to UV radiation.

Composed of Ethylene and Vinyl Acetate, this thermoplastic polymer is recognized for its exceptional flexibility, low-temperature toughness, and resistance to UV radiation. Chemical Structure. At a molecular level, EVA is characterized by the copolymerization of ethylene (C 2 H 4) and vinyl acetate (C 4 H 6 O 2). The percentage of vinyl acetate ...

2022年7月25日 · Ethylene vinyl acetate or EVA is a copolymer that is made of ethylene and vinyl acetate monomers and is an advanced type of polyethylene. Basically, there are three forms of ethylene vinyl acetate and the material can be either a film, a rubber-like structure, or a foam depending on the amount of vinyl acetate added.

Ultrathene ethylene vinyl acetate (EVA) copolymers combine many of the advantages of low-density polyethylene (LDPE), such as clarity and toughness, with outstanding flexibility, low-temperature performance and lower heat seal initiation temperatures.

2024年8月30日 · Ethylene vinyl acetate (EVA) is a copolymer of ethylene and vinyl acetate monomers. It is essentially a semi-crystalline polymer with properties ranging from plastic-like to rubber-like, depending on the vinyl acetate content.