The elastoplastic response of and moisture diffusion through a vinyl ester resin-clay nanocomposite

Details The elastoplastic response of and moisture diffusion through a vinyl ester resin-clay nanocomposite The elastoplastic response of and moisture diffusion through a vinyl ester resin-clay nanocomposite

2002-05-23

arxiv.org/abs/cond-mat/0205469v1

Physics

Condensed Matter

Materials Science

32pages, 16 figures

Scientific paper

Experimental data are reported on the elastoplastic response of and moisture diffusion through a vinyl ester resin-montmorillonite clay nanocomposite with various amounts of filler. Two simple models are developed for the elastoplastic behavior of a nanocomposite and for the anomalous diffusion of penetrant molecules. Adjustable parameters in the constitutive equations are found by fitting the observations. It is revealed that some critical concentration of filler exists (about 1 wt.-%): in the sub-critical region of concentrations, molecular mobility of the host polymer strongly decreases with the clay content, whereas in the post-critical domain, the filler fraction weakly affects mobility of chains.

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