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PREPARATION AND CHARACTERIZATION OF POLYETHYLENE/MONTMORILLONITE NANO-COMPOSITES

Liu Qinfu, MI Jialing, Fu Zheng

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Abstract

Using the organic montmorillonite/cetyltrimethy ammonium bromide (MMT/CTAB) deposited with ZieglerNatta catalyst as precursor the granular polyethylene/montmorillonite (PE/MMT) nano-composites were prepared by the in situ polymerization method. The microstructure and properties of the nano-composites were investigated by SEM,TEM,XRD and DSC etc and the effects of the content for montmorillonite on the melt point and crystalline behaviors were analyzed. Results show that the structure of montmorillonite is destroyed and the exfoliated nano-montmorillonite slices are dispersed uniformly in the polyethylene matrix. The PE/MMT composites with good properties are obtained when the mass fraction of montmorillonite in the nano-composite materials is about 3%.

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What this paper is about

Using the organic montmorillonite/cetyltrimethy ammonium bromide (MMT/CTAB) deposited with ZieglerNatta catalyst as precursor the granular polyethylene/montmorillonite (PE/MMT) nano-composites were prepared by the in situ polymerization method. The microstructure and properties of the nano-composites were investigated by SEM,TEM,XRD and DSC etc and the effects of the content for montmorillonite on the melt point and crystalline behaviors were analyzed. Results show that the structure of montmorillonite is destroyed and the exfoliated nano-montmorillonite slices are dispersed uniformly in the polyethylene matrix. The PE/MMT composites with good properties are obtained when the mass fraction of montmorillonite in the nano-composite materials is about 3%.

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Available abstract

Using the organic montmorillonite/cetyltrimethy ammonium bromide (MMT/CTAB) deposited with ZieglerNatta catalyst as precursor the granular polyethylene/montmorillonite (PE/MMT) nano-composites were prepared by the in situ polymerization method. The microstructure and properties of the nano-composites were investigated by SEM,TEM,XRD and DSC etc and the effects of the content for montmorillonite on the melt point and crystalline behaviors were analyzed. Results show that the structure of montmorillonite is destroyed and the exfoliated nano-montmorillonite slices are dispersed uniformly in the polyethylene matrix. The PE/MMT composites with good properties are obtained when the mass fraction of montmorillonite in the nano-composite materials is about 3%.

Key concepts: Montmorillonite, Materials science, Polyethylene, Composite material, Mass fraction, Nanocomposite, Composite number, In situ polymerization

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PREPARATION AND CHARACTERIZATION OF POLYETHYLENE/MONTMORILLONITE NANO-COMPOSITES — Research Paper | ScholarLens