Ethylene Vinyl Acetate Copolymer Resin

Ethylene vinyl acetate eva copolymers are used in extrusion film processes for applications including packaging surface protection and greenhouse covers and in photovoltaic cell encapsulation.

Ethylene vinyl acetate copolymer resin.

As the va content increases crystallinity decreases until at 50 the eva is. It is the basis of many hot melt adhesives when blended with a petroleum wax and a resin tackifier. Ethylene vinyl acetate eva copolymer cas no. Ethylene vinyl acetate copolymer eva properties and applications.

24937 78 8 ethylene vinyl acetate eva ethylene vinyl acetate copolymer ethylene vinyl acetate polymer 1 2. The va comonomer interferes with chain packing reducing crystallinity and thus lowering t m and improving transparency when compared with ldpe. Ethylene vinyl acetate copolymer eva ethylene vinyl acetate eva is the copolymer of ethylene and vinyl acetate. Ethylene vinyl acetate eva also known as poly ethylene vinyl acetate peva is the copolymer of ethylene and vinyl acetate the weight percent of vinyl acetate usually varies from 10 to 40 with the remainder being ethylene.

Eva copolymers are used in molded caps and seals footwear and car interiors. Both effects result in a lowering of the tg of the final copolymer. Ethylene vinyl acetate or eva is a copolymer of ethylene and vinyl acetate with a structure as shown below. Resin for packaging adhesives film forming and molding resins hot.

Eva offers good bondability and adhesion to polar substrates in extrusion coating and multi layer film applications. These material are used when a combination of softness toughness flexibility and polarity are needed. Relevant identified uses of the substance or mixture and uses advised against. Chemical formula diagram.

Ethylene vinyl acetate eva copolymer resins. Eva ethylene vinyl acetate this copolymer resin can be used in adhesives sealants and coatings. Emblem in packaging technology 2012. It is an extremely elastic and tough thermoplastic of excellent clarity and gloss and with little odor.

Having outstanding clarity gloss and weather resistance our nipoflex resins offer flexibility over wide temperature ranges as well as high impact strength elasticity and resistance to flex and environmental stress cracking. In addition poly vinyl acetate ethylene vae copolymers possess enhanced toughness flexibility and serviceability. Ethylene vinyl acetate copolymer resins sealing the deal our elvax ethylene vinyl acetate eva copolymer resins offer a variety of solutions for your sealants in meat and dairy packaging structures footwear wire and cable insulation as well as photovoltaic encapsulants and sheets. On a weight basis ethylene is far more effective a fact that is reflected in the low tg of polyethylene homopolymer below 80 c.