Polyethylene Vinyl Acetate Versus Polyethelene

A no attack possibly slight absorption.

Polyethylene vinyl acetate versus polyethelene.

Polycarbonate is yet another type of thermoplastic polymer used in manufacturing. Ethylene vinyl acetate or eva material is an elasticized closed cell foam with rubber like softness and flexibility. Negligible effect on mechanical properties. B slight attack by absorption.

Poly vinyl acetate was discovered in germany in 1912 by fritz klatte. 5 3 polyethylene and poly ethylene co vinyl acetate blends it is well known that eva has been used in the modification of pe for better flexibility toughness and resistance to environmental stress cracking. 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. Pvc is a known carcinogen and should generally be avoided where possible.

While the eva foam does not contain any rubber is is commonly referred to as expanded rubber or foam rubber. There are three different types of eva copolymer which differ in the vinyl acetate va content and the way the materials are used. 3 the monomer vinyl acetate was first produced on an industrial scale by the addition of acetic acid to acetylene with a mercury i salt 4 but it is now primarily made by palladium catalyzed oxidative addition of acetic acid to ethylene. Eva mats will have a glossy appearance and are resistant to uv radiation and cracking.

All of these variants are. Peva polyethylene vinyl acetate is a non chlorinated vinyl and is commonly used as a substitute for pvc polyvinyl chloride which is a type of chlorinated vinyl. Poly 1 vinylpyrrolidone co vinyl acetate average mw 50 000 gpc vs. The modifying effect of the eva 32.

Many people associate polycarbonate with bullet proof glass because it is the same material used to make armored windows in government motorcade vehicles as well as airplane windows. In addition ethylene can be copolymerized with other monomers such as vinyl acetate or propylene to produce a number of ethylene copolymers. This clear plastic is typically more expensive than acrylic and polystyrene but it is extremely strong. Polyethylene chemical compatibility guide page 1 of 5 chemical compatibility guide for polyethylene items this chemical compatibility guide is offered for informational purposes only and was developed from information sources other than spilltech.

The information from such third party sources is believed to be reliable and accurate.