Preparation of Exfoliated Low-density Polyethylene/Montmorillonite Nanocomposites Through Melt Extrusion

Chemical Research in Chinese Universities ›› 2006, Vol. 22 ›› Issue (3): 383-387.

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Preparation of Exfoliated Low-density Polyethylene/Montmorillonite Nanocomposites Through Melt Extrusion

YANG Hong-mei, SONG Yi-hu, XU Bo, ZHENG Qiang

Department of Polymer Science & Engineering, Key Laboratory of Macromolecule Synthesis and Functionalization of MOE, Zhejiang University, Hangzhou 310027, P. R. China

Received:2005-06-07 Online:2006-06-24 Published:2011-08-06
Supported by:
Supported by the National Natural Science Foundation of China(No. 50373037) and the Special Funds for Major State Basic Research Projects(No. 2005CB623802).

Abstract

Abstract: The effects of ethylene vinyl acetate copolymer (EVA) as a compatibilizer on the dispersion of organically modified montmorillonite(org-MMT) into low-density polyethylene(LDPE) during melt extrusion compounding were studied. The X-ray diffraction patterns reveal that as compared with LDPE, EVA can intercalate more easily into the interlay gallery of org-MMT when the composites contain a low org-MMT content. Exfoliated LDPE/org-MMT nanocomposites in the presence of an EVA compatibilizer could be prepared by using a two-step melt compounding technique with a twin-screw extruder.

Key words: Polyethylene, Montmorillonite, Nanocomposite, Intercalation, Exfoliation

YANG Hong-mei, SONG Yi-hu, XU Bo, ZHENG Qiang. Preparation of Exfoliated Low-density Polyethylene/Montmorillonite Nanocomposites Through Melt Extrusion[J]. Chemical Research in Chinese Universities, 2006, 22(3): 383-387.

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Preparation of Exfoliated Low-density Polyethylene/Montmorillonite Nanocomposites Through Melt Extrusion

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