Polyethylene Vinyle Acetate Structure

The polar side groups change the chemical properties significantly compared to polyethylene.

Polyethylene vinyle acetate structure. 235 due to decreasing crystallinity ethylene vinyl acetate copolymers are getting softer with increasing comonomer content. George wypych in handbook of odors in plastic materials second edition 2017. 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. Poly vinyl alcohol pvoh pva or pval is a water soluble synthetic polymer it has the idealized formula ch 2 ch oh n it is used in papermaking textile warp sizing as a thickener and emulsion stabilizer in pvac adhesive formulations and a variety of coatings.

Vinyl acetate 12 wt. Polyethylene is a member of the important family of polyolefin resins. It is the most widely used plastic in the world being made into products ranging from clear food wrap and shopping bags to detergent bottles and fuel tanks. Ch 2 ch 2 m ch 2 ch ococh 3 n.

224 weather resistance adhesiveness and weldability rise with comonomer content while the chemical resistance decreases. Poly ethylene co vinyl acetate vinyl acetate 12 wt. Poly ethylene vinyl acetate 1 product result match criteria. Melt index 8 g 10 min 190 c 2 16kg sigma aldrich pricing.

8 10 ethylene vinyl acetate eva. 47 but elevated temperature and presence of some additives for example high amounts of clay cause the production of pungent acetic acid odor which is a product of thermal degradation. Polyethylene light versatile synthetic resin made from the polymerization of ethylene. Ethylene vinyl acetate copolymer does not have an acid odor if it is not thermally degraded.

It is commonly supplied as beads or as solutions in water. 0 100 8 101 200 12 201 300 6 301 400 2 401 500 1 boiling point c 0 100 8 101 200 8 201 300 4 melting point c less than 0 2. Poly ethylene vinyl acetate 1 product result match criteria. There are three different types of eva copolymer which differ in the vinyl acetate va content and the way the materials are used.

It is colourless white and odorless.