Nominal and effective volume fractions in polymer-clay nanocomposites

Biqiong Chen, Julian R.G. Evans*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

50 Citations (Scopus)


This paper aims to clarify the calculation of effective phase volume fractions in polymer-clay nanocomposites so that conventional composite theory for the volume fraction dependencies of properties can be applied. In this way, such nanocomposites, which are treated as a separate class of composites, can be brought under the umbrella of general composite theory so that property predictions and formulation decisions can have a wider theoretical base. Intercalation results in the expansion of the dispersed phase and absorption of the continuous phase so that the reinforcing unit is itself a composite. In exfoliation, a high surface area of dispersed phase is presented to the continuous phase with consequences for adsorption and immobilization. Many nanocomposites are a mixture of these two modes for which a theoretical expression is also needed.

Original languageEnglish
Pages (from-to)1790-1796
Number of pages7
Issue number5
Publication statusPublished - 07 Mar 2006
Externally publishedYes

ASJC Scopus subject areas

  • Materials Chemistry


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