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Thermal and Rheological Properties of Poly(ethylene-co-vinyl acetate) (EVA) Nanoclay

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Handbook of Polymernanocomposites. Processing, Performance and Application

Abstract

Poly(ethylene-co-vinyl acetate) (EVA) is a copolymer of utmost importance in nanocomposite applications. Clay dispersed in an EVA matrix was tested using different types of clays with hydrated silicate layers. Several observations have led to the unexpected physical point of view of (clay/polymer) interaction. Due to the polar nature of the acetate group, a strong interaction would be expected when using a polar group-bearing surfactant such as organophilic modified montmorillonite (OMMT – 30B). Through research using techniques that explore the rheology in the molten state, it was evident that a stronger interaction is possible for nonpolar group-modified organophilic clays. This strong interaction is the result of a complex environment of physical entanglements that show a pseudo-solid behavior among the nanoclay dispersed in the EVA matrix. In this chapter, we will emphasize the influence of processing and type of organic modifier in natural organophobic clay (Cloisite® Na+) dispersed in an EVA matrix. The characterization techniques will be discussed by the study of melt state rheology and thermal behavior of these materials. The relaxation phenomena and creep compliance behavior as well as a correlation between the processing and final properties are detailed for EVA and OMMT nanocomposites.

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Abbreviations

EVA:

Poly(ethylene-co-vinyl acetate)

NLREG:

Nonlinear regularization

OMMT:

Organophilic modified montmorillonite

PVAc:

Poly(vinyl acetate)

TEM:

Transmission electron microscopy

VAc:

Vinyl acetate

XRD:

X-ray diffraction

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Authors and Affiliations

  1. Laboratory of Polymers (LPOL), Center for Exact Sciences and Technology (CCET), Caxias do Sul University (UCS), Caxias do Sul, RS, Brazil

    Vinicius Pistor & Ademir José Zattera

Authors
  1. Vinicius Pistor
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  2. Ademir José Zattera
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Corresponding author

Correspondence to Vinicius Pistor .

Editor information

Editors and Affiliations

  1. University of Petroleum and Energy Studies (UPES), Dehradun, India

    Jitendra K. Pandey

  2. Department of Future Industry-Oriented Basic Science and Materials, Toyota Technological Institute, Nagoya, Japan

    Kummetha Raghunatha Reddy

  3. Department of Plant Agriculture, University of Guelph, Guelph, Ontario, Canada

    Amar Kumar Mohanty

  4. Department of Plant Agriculture, University of Guelph, Guelph, Ontario, Canada

    Manjusri Misra

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Pistor, V., Zattera, A.J. (2014). Thermal and Rheological Properties of Poly(ethylene-co-vinyl acetate) (EVA) Nanoclay. In: Pandey, J., Reddy, K., Mohanty, A., Misra, M. (eds) Handbook of Polymernanocomposites. Processing, Performance and Application. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-38649-7_17

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  • DOI: https://doi.org/10.1007/978-3-642-38649-7_17

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-38648-0

  • Online ISBN: 978-3-642-38649-7

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