Rheology of Polyethylene/Montmorillonite Nanocomposites Prepared by In Situ Polymerization

Min Li; Li Guang Xiao; Hong Kai Zhao

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

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 271-272Rheology of Polyethylene/Montmorillonite...

Rheology of Polyethylene/Montmorillonite Nanocomposites Prepared by In Situ Polymerization

Abstract:

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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Periodical:

Applied Mechanics and Materials (Volumes 271-272)

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329-332

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.271-272.329

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Online since:

December 2012

Authors:

Min Li, Li Guang Xiao, Hong Kai Zhao

Keywords:

In Situ Polymerization, Montmorillonite, Nanocomposite, Polyethylene, Viscoelastic Property

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