Molecular Weight Ethylene Vinyl Acetate

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Molecular weight ethylene vinyl acetate.

Vinyl acetate is the acetate ester of vinyl alcohol. The following pie chart shows world consumption of ethylene vinyl acetate. Emblem in packaging technology 2012. At 50 c the solubility of vinyl acetate in water is 0 1 wt more than at 20 c but the solubility of water in vinyl acetate doubles to about 2 wt.

Ethylene vinyl acetate eva is a random copolymer of ethylene and varying amounts of vinyl acetate va. The major industrial route involves the reaction of ethylene and acetic acid with oxygen in the presence of a palladium catalyst. Ethylene vinyl acetate polymer. There are three different types of eva copolymer which differ in the vinyl acetate va content and the way the materials are used.

Since vinyl alcohol is highly unstable with respect to acetaldehyde the preparation of vinyl acetate is more complex than the synthesis of other acetate esters. Poly ethylene co vinyl acetate vinyl acetate 25 wt. The va comonomer interferes with chain packing reducing crystallinity and thus lowering t m and improving transparency when compared with ldpe. Articles of ethylene vinyl acetate copolymer are included as well.

World eva capacity is projected to increase at an average annual rate of about 5 per year through 2023 while consumption is expected to increase at 4 per year over the same period. As the va content increases crystallinity decreases until at 50 the eva is. You can also browse global suppliers vendor prices price manufacturers of ethylene vinyl acetate copolymer 24937 78 8. 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.

Melt index 19 g 10 min 190 c 2 16 kg contains 200 900 ppm bht as inhibitor. Chemsrc provides ethylene vinyl acetate copolymer cas 24937 78 8 msds density melting point boiling point structure formula molecular weight etc.