Ethylene-vinyl acetate (EVA) copolymers: a general review

Henderson, Alex M.

doi:10.1109/57.249923

Cited by 188 publications

(120 citation statements)

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“…Copolymers with ethylene are one of the most important classes of copolymers known and, depending on the ratio of ethylene and vinyl acetate, are abbreviated as EVA (high ethylene and low vinyl acetate content) or VAE (high vinyl acetate and low ethylene content) [18] polymers. Copolymers with acrylates (vinyl acrylics) or other vinyl esters are also commonly produced, mostly as aqueous dispersions.…”

Section: Polymer Compositionmentioning

confidence: 99%

Biodegradability of Poly(vinyl acetate) and Related Polymers

Amann

Minge

2011

Synthetic Biodegradable Polymers

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This chapter deals with the biodegradability of vinyl ester-based polymers with a special emphasis on poly(vinyl acetate) and poly(vinyl alcohol). A proper discussion of the importance of the biodegradability of a certain polymer class cannot be made without understanding the impact that polymer class has on the environment. Therefore, apart from discussing the actual biodegradation mechanisms, other issues will be addressed. These include, but are not limited to, how long the class of vinyl ester-based polymers has been known and produced on an industrial scale, what quantities are produced and released into the environment each year, and what applications are addressed with this polymer class. We will also look at the general physical and chemical properties of this polymer class and how these properties can influence biodegradability. After a discussion of what "biodegradability" actually means -and what not -the mechanisms for the biodegradation of poly(vinyl ester)s will be discussed in more detail and a summary given of the biological systems able to process poly(vinyl ester)s.

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Section: Polymer Compositionmentioning

confidence: 99%

Biodegradability of Poly(vinyl acetate) and Related Polymers

Amann

Minge

2011

Synthetic Biodegradable Polymers

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“…Its properties are easily variable by the adjustment of the comonomer ratio. When the VAc content is low, the copolymer is more akin to polyethylene and has enough ability to crystal, but for high VAc content the pendent acetoxy is excessive enough and prevents adjacent polyethylene chains packing into the crystal lattice [2], then totally amorphous and rubber-like EVA is expected when the VAc content is more than 43% by weight as indicated by Kamath and Wakefield [3]. It should be noticed that Varga and his coworkers revealed that the crystallization and melting characteristics of PE are very sensitive to the VAc content [4].…”

Section: Introductionmentioning

confidence: 99%

Non-isothermal crystallization and melting of ethylene-vinyl acetate copolymers with different vinyl acetate contents

Shi¹,

Zhang

Jin³

et al. 2008

Express Polym. Lett.

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Abstract. Non-isothermal crystallization and subsequent melting of three grades of ethylene-vinyl acetate copolymer were investigated by differential scanning calorimetry (DSC) technique. The DSC crystallization curves show that vinyl acetate (VAc) content has the same effect on the onset, peak and final crystallization temperatures, and these copolymers have almost the same spacing of thermal windows under identical crystallization condition. Subsequent melting DSC results suggest that EVA14 (14 wt% VAc) has the narrowest distribution of lamellar thickness and the most perfect crystals. Though the instantaneous nucleation was preferred, non-isothermal crystallization kinetics shows that EVA14 could form tridimensional crystallites, whereas EVA18 (18 wt% VAc) and EVA28 (28 wt% VAc) are prone to crystallize two-dimensionally, as a result of more noncrystallizable VAc co-monomers introduced in the crystallizable ethylene segments. The growth rate falls on the following sequence: EVA14>EVA18>EVA28. Moreover, the kinetic crystallizability G also well characterizes the variation of the non-isothermal crystallization of these EVA materials, in the view of structural impediment caused by the VAc content.

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“…Poly(ethylene-co-vinyl acetate) (EVA) copolymer has been widely used in a variety of areas such as cable and wire insulation, adhesive, solar energy, construction, and packaging industries [1,2].…”

Section: Introductionmentioning

confidence: 99%

Competitiveness and synergy between three flame retardants in poly(ethylene- co -vinyl acetate)

Vahabi

Raveshtian

Fasihi

et al. 2017

Polymer Degradation and Stability

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This work seeks to address the effect of simoultaneous use of three flame retardants, having three different modes of action, (magnesium hydroxide, expanded and expandable graphite) on the thermal degradation and flame retardancy of poly(ethylene-co-vinyl acetate). Thermal conductivity of samples was meseaured in order to investigate the effect of the use of expanded and expandable graphite on the time-to-ignition and the peak of heat release rate in cone calorimeter test. Thermal shielding performances of chars were studied as well. It was found that there is an optimum ratio between expanded and expandable graphite in order to control thermal conductivity and therefore fire properties. Some correlations were also found between the char thickness and the first peak of heat release rate.

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Ethylene-vinyl acetate (EVA) copolymers: a general review

Cited by 188 publications

References 0 publications

Biodegradability of Poly(vinyl acetate) and Related Polymers

Biodegradability of Poly(vinyl acetate) and Related Polymers

Non-isothermal crystallization and melting of ethylene-vinyl acetate copolymers with different vinyl acetate contents

Competitiveness and synergy between three flame retardants in poly(ethylene- co -vinyl acetate)

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