Material properties of nanoclay PVC composites

Walid H. Awad, Günter Beyer, Daphne Benderly, Wouter L. Ijdo, Ponusa Songtipya, Maria Del Mar Jimenez Gasco, Evangelos Manias, Charles A. Wilkie

Research output: Contribution to journalArticle

103 Citations (Scopus)

Abstract

Nanocomposites of poly(vinyl chloride) have been prepared using both hectorite- and bentonite-based organically-modified clays. The organic modification used is tallow-triethanol-ammonium ion. The morphology of the systems was investigated using X-ray diffraction and transmission electron microscopy and these systems show that true nanocomposites, both intercalated and exfoliated systems, are produced. The mechanical properties have been evaluated and the modulus increases upon nanocomposite formation without a significant decrease in tensile strength or elongation at break. Thermal analysis studies using thermogravimetric analysis, differential scanning calorimetry, and dynamic mechanical analysis were conducted. Thermal stability of the PVC systems was assessed using a standard thermal process evaluating the evolution of hydrogen chloride and by color development through the yellowness index. Cone calorimetry was used to measure the fire properties and especially to evaluate smoke evolution. The addition of an appropriately-modified bentonite or hectorite nanoclay leads to both a reduction in the total smoke that is evolved, and an increase in the length of time over which smoke is evolved. Along with this, a reduction in the peak heat release rate is seen. It is likely that the presence of the clay in some way interferes with the cyclization of the conjugated system formed upon HCl loss.

Original languageEnglish (US)
Pages (from-to)1857-1867
Number of pages11
JournalPolymer
Volume50
Issue number8
DOIs
StatePublished - Apr 9 2009

Fingerprint

Smoke
Polyvinyl Chloride
Polyvinyl chlorides
Bentonite
Materials properties
Nanocomposites
Composite materials
Clay
Vinyl Chloride
Hydrochloric Acid
Cyclization
Calorimetry
Dynamic mechanical analysis
Ammonium Compounds
Thermoanalysis
Thermogravimetric analysis
Cones
Elongation
Differential scanning calorimetry
Fires

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Awad, W. H., Beyer, G., Benderly, D., Ijdo, W. L., Songtipya, P., Jimenez Gasco, M. D. M., ... Wilkie, C. A. (2009). Material properties of nanoclay PVC composites. Polymer, 50(8), 1857-1867. https://doi.org/10.1016/j.polymer.2009.02.007
Awad, Walid H. ; Beyer, Günter ; Benderly, Daphne ; Ijdo, Wouter L. ; Songtipya, Ponusa ; Jimenez Gasco, Maria Del Mar ; Manias, Evangelos ; Wilkie, Charles A. / Material properties of nanoclay PVC composites. In: Polymer. 2009 ; Vol. 50, No. 8. pp. 1857-1867.
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Awad, WH, Beyer, G, Benderly, D, Ijdo, WL, Songtipya, P, Jimenez Gasco, MDM, Manias, E & Wilkie, CA 2009, 'Material properties of nanoclay PVC composites', Polymer, vol. 50, no. 8, pp. 1857-1867. https://doi.org/10.1016/j.polymer.2009.02.007

Material properties of nanoclay PVC composites. / Awad, Walid H.; Beyer, Günter; Benderly, Daphne; Ijdo, Wouter L.; Songtipya, Ponusa; Jimenez Gasco, Maria Del Mar; Manias, Evangelos; Wilkie, Charles A.

In: Polymer, Vol. 50, No. 8, 09.04.2009, p. 1857-1867.

Research output: Contribution to journalArticle

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AU - Awad, Walid H.

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AU - Jimenez Gasco, Maria Del Mar

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AU - Wilkie, Charles A.

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Awad WH, Beyer G, Benderly D, Ijdo WL, Songtipya P, Jimenez Gasco MDM et al. Material properties of nanoclay PVC composites. Polymer. 2009 Apr 9;50(8):1857-1867. https://doi.org/10.1016/j.polymer.2009.02.007