Characterization of HDPE /Polyamide 6/ Nanocomposites Using Scanning-and Transmission Electron Microscopy

Preparation and morphology of high density polyethylene (HDPE)/ polyamide 6 (PA 6)/modified clay nanocomposites were studied. The ability of PA 6 in dispersing clays was used to prepare modified delaminated clays, which were then mixed with HDPE. Mixing was performed using melt processing in a torqu...

Full description

Saved in:
Bibliographic Details
Published in:Macromolecular symposia 2007-11, Vol.258 (1), p.82-89
Main Authors: Erdmann, Eleonora, Dias, Marcos L, Pita, Victor J.R.R, Destéfanis, Hugo, Monasterio, Fernanda, Acosta, Delicia
Format: Article
Language:English
Subjects:
Applied sciences
Boiling
clay
Clay (material)
Composites
Exact sciences and technology
Exfoliation
Forms of application and semi-finished materials
Morphology
Nanocomposites
polyamide
Polyamide resins
polyethylene
Polyethylenes
Polymer industry, paints, wood
Rheometers
Technology of polymers
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Preparation and morphology of high density polyethylene (HDPE)/ polyamide 6 (PA 6)/modified clay nanocomposites were studied. The ability of PA 6 in dispersing clays was used to prepare modified delaminated clays, which were then mixed with HDPE. Mixing was performed using melt processing in a torque rheometer equipped with roller rotors. After etching the materials with boiling toluene and formic acid at room temperature, the morphology was examined by SEM analyses, showing that the PA 6 formed the continuous phase and HDPE the dispersed phase. X-ray diffraction patterns show that the (001) peak of the clay is dramatically decreased and shifted to lower angles, indicating that intercalated/exfoliated nanocomposites are obtained. TEM analyses confirmed the typical structure of exfoliated nanocomposites. A scheme for the mechanism of exfoliation and/or intercalation of these HDPE /PA 6/ /organoclay nanocomposites is proposed.
ISSN:1022-1360
1521-3900
DOI:10.1002/masy.200751209