What is vinyl acetate?
Vinyl acetate monomer (VAM) is a significant intermediate used in the production of a wide range of resins and polymers for paints & coatings, adhesives, glues & sealants, elastomers, textile finishes, paper coatings, binders, films, and a myriad of other industrial and consumer applications.
How vinyl acetate is formed?
Vinyl acetate is prepared from ethylene by reacting it with oxygen and acetic acid over a palladium catalyst. The basic chemical reaction is shown below, along with the chemical structure of vinyl acetate monomer. Vinyl acetate, a colorless liquid with a pungent odor, is rarely used in its pure form.
What is vinyl acetate used for?
Vinyl acetate is used to make other industrial chemicals. These chemicals are used mainly to make glues for the packaging and building industries. They are also used to make paints, textiles, and paper. Vinyl acetate is also used as a coating in plastic films for food packaging and as a modifier of food starch.
What is VAM made of?
Primarily, vinyl acetate is used as a monomer in the production of polyvinyl acetate and polyvinyl alcohol. Vinyl acetate is also used as a raw material in the production of other chemicals, in adhesives, water-based paints, nonwoven textile fibers, and paper coatings.
What temperature does EVA melt at?
| Material | EVA |
|---|---|
| Shrinkage | 2% to 3% |
| Melting Point | 167° – 216° F |
| Deflection Temperature | 93° F |
| Service Temperature | 114.8° F |
What temperature does EVA melt?
EVA melt temperatures range from 90°C to as much as 120°C and decrease with increasing vinyl acetate content. Depending on the copolymer ratio, EVA has a Shore D hardness range from the low 40s to 55 or so.
Is polyvinyl acetate flammable?
Vinyl Acetate is a colorless liquid with a sharp, sweet odor. It is used in making polyvinyl resins. * Vinyl Acetate is on the Hazardous Substance List because it is cited by ACGIH, DOT, NIOSH, DEP, HHAG, NFPA and EPA. * This chemical is on the Special Health Hazard Substance List because it is FLAMMABLE and REACTIVE.
Is vinyl an alkyl?
Vinyl is one of the alkenyl functional groups. On a carbon skeleton, sp2-hybridized carbons or positions are often called vinylic. Allyls, acrylates and styrenics contain vinyl groups. (A styrenic crosslinker with two vinyl groups is called divinyl benzene.)
Is vinyl a compound?
Vinyl compounds contain the hydrocarbon vinyl group (CH2=CH-). The molecules of a single vinyl compound can be made to polymerize; that is, to join end to end, forming a polyvinyl compound such as polyvinyl chloride.
What happens when vinyl acetate is heated?
Heating will cause rise in pressure with risk of bursting. Vinyl acetate is an industrial chemical that is produced in large amounts in the United States. It is a clear, colorless liquid with a sweet, fruity smell. It is very flammable and may be ignited by heat, sparks, or flames.
What is the standard state of vinyl acetate at different temperatures?
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).?) Vinyl acetate is an organic compound with the formula CH 3 CO 2 CH=CH 2.
What is the chemical formula for vinyl acetate?
Vinyl acetate is an organic compound with the formula CH 3 CO 2 CH=CH 2. This colorless liquid is the precursor to polyvinyl acetate and ethene-vinyl acetate copolymers, important industrial polymers.
What is the product of vinyl acetate hydrolysis?
/On/ hydrolysis /in the blood/, vinyl acetate yields acetic acid, a normal body constituent, and vinyl alcohol, which should rapidly tautomerize to yield acetaldehyde, another normal body constituent. Filov VA; Gig Tr Prof Zabol 3: 42-6 (1959) as cited in NIOSH; Criteria Document: Vinyl Acetate p.24 (1978) DHEW Pub. NIOSH 78-205