Rheology of Polyethylene/Montmorillonite Nanocomposites Prepared by In Situ Polymerization

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The linear shear rheological behaviors of polyethylene/montmorillonite (PE/MMT) nanocomposites were investigated by a rheometer. The storage moduli (G′) and loss moduli (G″) of PE/MMT nanocomposites increase obviously with the silicate loading only 0.1 wt%, this is ascribed to a strong interficial adhension. The presence of MMT leads to pseudo-solid-like behaviors and the molecular chain of PE/MMT melts confined. For all samples, the dependence of G′ and G″ on ω shows nonterminal behaviors. The terminal slope decreases as the silicate loading increased from 0.1 % to 0.8 wt%. However, the terminal slope of PE/MMT nanocomposites increases as the silicate loading increased from 0.8 % to 1.2 wt% . This may be attributed to the aggregation of a small amount of MMT.

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Edited by:

Wen-Pei Sung and Ran Chen

Pages:

329-332

DOI:

10.4028/www.scientific.net/AMM.271-272.329

Citation:

M. Li et al., "Rheology of Polyethylene/Montmorillonite Nanocomposites Prepared by In Situ Polymerization", Applied Mechanics and Materials, Vols. 271-272, pp. 329-332, 2013

Online since:

December 2012

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$35.00

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