a close-up picture of open celled EVA

Polyethylene vinyl acetate (CAS# 24937-78-8, also known as EVA or sometimes simply as "acetate") is the copolymer of ethylene and vinyl acetate. The weight percent vinyl acetate usually varies from 10 to 40% with the remainder being ethylene. A heteropolymer, also called a copolymer, is a polymer formed when two (or more) different types of monomer are linked in the same polymer chain, as opposed to a homopolymer where only one monomer is used. ... Ethylene (or IUPAC name ethene) is the chemical compound with the formula C2H4. ... This article needs to be wikified. ...

It is a polymer that approaches elastomeric materials in softness and flexibility, yet can be processed like other thermoplastics. The material has good clarity and gloss, barrier properties, low-temperature toughness, stress-crack resistance, hot-melt adhesive and heat sealing properties and resistance to UV radiation. EVA has little or no odor and is competitive with rubber and vinyl products in many electrical applications. A polymer (from Greek: πολυ, polu, many; and μέρος, meros, part) is a substance composed of molecules with large molecular mass composed of repeating structural units, or monomers, connected by covalent chemical bonds. ... The term elastomer is often used interchangeably with the term rubber, and is preferred when referring to vulcanisates. ... A thermoplastic is a material that is plastic or deformable, melts to a liquid when heated and freezes to a brittle, glassy state when cooled sufficiently. ... In materials science and metallurgy, toughness is the resistance to fracture of a material when stressed. ... “Glue” redirects here. ... Note: Ultraviolet is also the name of a 1998 UK television miniseries about vampires. ... This does not cite any references or sources. ... Chemical structure of the vinyl functional group. ...

EVA foam is used as padding in equipment for various sports such as ski boots, hockey, boxing, and mixed martial arts. Sea foam on the beach Foam on a cappuccino Fire-retardant, foamed plastic being used as a temporary dam for firestop mortar in a cable penetration in a pulp and paper mill on Vancouver Island, British Columbia, Canada. ... Ski boots are specialized footwear that are used in skiing to provide protection and warmth for the foot in snowy and icy conditions, along with a way to attach the skier to skis using ski bindings so that skiers ski over snow. ... Hockey is any of a family of sports in which two teams compete by trying to maneuver a ball, or a hard, round disc called a puck, into the opponents net or goal, using a hockey stick. ... For other senses of these words, see boxing (disambiguation) or boxer (disambiguation). ... Mixed martial arts (MMA) is a combat sport in which a wide variety of fighting techniques are used, including striking and grappling. ...

EVA is also used in biomedical engineering applications as a drug delivery device. The polymer is dissolved in an organic solvent (e.g., methylene chloride). Powdered drug and filler (typically an inert sugar) are added to the liquid solution and rapidly mixed to obtain a homogeneous mixture. The drug-filler-polymer mixture is then cast into a mold at -80 degrees and freeze dried until solid. These devices are used in drug delivery research to slowly release a compound over time. While the polymer is not biodegradable within the body, it is quite inert and causes little or no reaction following implantation. The AbioCor artificial heart, an example of a biomedical engineering application of mechanical engineering with biocompatible materials for Cardiothoracic Surgery using an artificial organ. ... Drug delivery is a term that refers to the delivery of a pharmaceutical compound to humans or animals. ... Dichloromethane or Methylene chloride is a chemical compound widely used as a solvent for organic materials. ... Biodegradation is the decomposition of material by microorganisms. ...

Hot glue sticks are usually made from EVA, usually with additives like wax and resin. EVA is also used as a clinginess-enhancing additive in plastic wraps. Glue gun redirects here; for the band Glue Gun, see Glue Gun (band). ... candle wax This page is about the substance. ... This article does not cite any references or sources. ... A roll of LDPE plastic wrap in a box. ...

EVA is typically used as a shock absorber in for example tennis shoes. An athletic shoe is a generic name for a shoe designed for sporting activities. ...

It is also used in the photovoltaics industry as an encapsulation material for silicon cells in the manufacture of photovoltaic modules. A solar cell, a form of photovoltaic cell, is a device that uses the photoelectric effect to generate electricity from light, thus generating solar power (energy). ... A photovoltaic cell is a device that turns light into electric energy. ... A photovoltaic module is composed of individual PV cells. ...

EVA is one of the materials popularly known as 'expanded rubber' or 'foam rubber'.

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