Elastic moduli of clay platelets

Biqiong Chen; Julian R G Evans

doi:10.1016/j.scriptamat.2006.01.018

Elastic moduli of clay platelets

Biqiong Chen, Julian R G Evans^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

141 Citations (Scopus)

Abstract

We survey estimates of elastic moduli of smectite clay platelets required for the theoretical understanding of polymer-clay nanocomposites. Experimental measurements have been unsuccessful, so it is presently not possible to calculate absolute values of modulus for use in composite theory. We focus on analogous minerals and modulus-density relations to deduce a convergence of opinion in the range 178-265 GPa. The use of this range in the prediction of polymer-clay nanocomposite modulus does not introduce significant error provided the platelet volume fraction is below 0.3. Current nanocomposites have volume fractions <0.1.

Original language	English
Pages (from-to)	1581-1585
Number of pages	5
Journal	Scripta Materialia
Volume	54
Issue number	9
DOIs	https://doi.org/10.1016/j.scriptamat.2006.01.018
Publication status	Published - May 2006
Externally published	Yes

Keywords

Clay
Elastic behaviour
Nanocomposite

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Materials Science
Metals and Alloys

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10.1016/j.scriptamat.2006.01.018

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abstract = "We survey estimates of elastic moduli of smectite clay platelets required for the theoretical understanding of polymer-clay nanocomposites. Experimental measurements have been unsuccessful, so it is presently not possible to calculate absolute values of modulus for use in composite theory. We focus on analogous minerals and modulus-density relations to deduce a convergence of opinion in the range 178-265 GPa. The use of this range in the prediction of polymer-clay nanocomposite modulus does not introduce significant error provided the platelet volume fraction is below 0.3. Current nanocomposites have volume fractions <0.1.",

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AB - We survey estimates of elastic moduli of smectite clay platelets required for the theoretical understanding of polymer-clay nanocomposites. Experimental measurements have been unsuccessful, so it is presently not possible to calculate absolute values of modulus for use in composite theory. We focus on analogous minerals and modulus-density relations to deduce a convergence of opinion in the range 178-265 GPa. The use of this range in the prediction of polymer-clay nanocomposite modulus does not introduce significant error provided the platelet volume fraction is below 0.3. Current nanocomposites have volume fractions <0.1.

KW - Clay

KW - Elastic behaviour

KW - Nanocomposite

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DO - 10.1016/j.scriptamat.2006.01.018

M3 - Article

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IS - 9

ER -

Elastic moduli of clay platelets

Abstract

Keywords

ASJC Scopus subject areas

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