Polyethylene Vinyl Acetate
Search results for ethylene vinyl acetate at sigma aldrich.
Polyethylene vinyl acetate. Mixture of 40 to 80 by weight and with a melt index mfi to iso 1133 a 4 of 0 5 to 25 g 10 min at 190 c and 2 16 kg blended with0 05 to 35 by weight of a polyethylene glycol of a polyethylene oxide of the general formula ho ch2 2 o m h of a derivative of polyethylene glycol with end groups other than the hydroxyl function and orof a derivative of polyethylene oxide with. Melt index 8 g 10 min 190 c 2 16kg sorry we cannot compare more than 4 products at a time. Vinyl acetate c4h6o2 cid 7904 structure chemical names physical and chemical properties classification patents literature biological activities safety. The basic polyethylene composition can be modified by the inclusion of other elements or chemical groups as in the case of chlorinated and chlorosulfonated polyethylene.
Applications edit as an emulsion in water pvac emulsions are used as adhesives for porous materials particularly for wood paper and cloth and as a consolidant for porous building stone in. Pvc is a known carcinogen and should generally be avoided where possible. 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. Ethylene vinyl acetate is a type of plastic a polymer with a wide variety of uses both residential and industrial.
In addition ethylene can be copolymerized with other monomers such as vinyl acetate or propylene to produce a number of ethylene copolymers. There are three different types of eva copolymer which differ in the vinyl acetate va content and the way the materials are used. The food and drug administration fda has stated that ethylene vinyl acetate is safe when used in food production packaging or transportation and it s not an especially dangerous material. Polyvinyl acetate is prepared by the polymerization of vinyl acetate monomer free radical vinyl polymerization of the monomer vinyl acetate.