Isothermal Crystallization of Polyethylene/Montmorillonite Nanocomposites Prepared by In Situ Polymerization

Min Li; Li Guang Xiao; Hong Kai Zhao

doi:10.4028/www.scientific.net/AMM.271-272.42

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 271-272Isothermal Crystallization of...

Isothermal Crystallization of Polyethylene/Montmorillonite Nanocomposites Prepared by In Situ Polymerization

Abstract:

Polyethylene/montmorillonite (PE/MMT) nanocomposites were prepared by in situ polymerization. The isothermal crystallization of PE/MMT nanocomposites at different MMT concentration (from 0.1 wt % to 1.2 wt %) was investigated by differential scanning calorimetry (DSC). The crystallization kinetics shows that the Avrami exponent of PE/MMT nanocomposites is decreased compared with pure PE, which indicates a decrease in the crystal growth dimension. This is attributed to the stems of PE crystals confined in the MMT layers. The crystallization rates of PE/MMT nanocomposites are faster than those of pure PE. However, when the content of MMT increases from 0.1 wt % to 1.2 wt %, the crystallization rate of PE/MMT nanocomposites is decreased.

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Applied Mechanics and Materials (Volumes 271-272)

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42-45

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.271-272.42

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Online since:

December 2012

Authors:

Min Li, Li Guang Xiao, Hong Kai Zhao

Keywords:

Crystallization, High-Density Polyethylene, Kinetic, Montmorillonite, Nanocomposite

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