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Rheological behavior of polymer/layered silicate nanocomposites under uniaxial extensional flow

Authors :
Do Hoon Kim
Kyung Hyun Ahn
Seung Jong Lee
Kwang Soo Cho
Jeong Lim Kim
Jun Uk Park
Source :
Macromolecular Research. 14:318-323
Publication Year :
2006
Publisher :
Springer Science and Business Media LLC, 2006.

Abstract

We investigated the rheological behaviors and orientation of three different types of layered silicate composite systems under external flow: microcomposite, intercalated and exfoliated nanocomposites. Rheological measurements under shear and uniaxial extensional flows, two-dimensional, small-angle X-ray scattering and transmission electron microscopy were conducted to investigate the properties, as well as nano- and micro-structural changes, of polymer/layered silicate nanocomposites. The preferred orientation of the silicate layers to the flow direction was observed under uniaxial extensional flow for both intercalated and exfoliated systems, while the strain hardening behavior was observed only in the exfoliated systems. The degree of compatibility between the polymer matrix and clay determined the microstructure of polymer/clay composites, strain hardening behavior and spatial orientation of the clays under extensional flow.

Details

ISSN :
20927673 and 15985032
Volume :
14
Database :
OpenAIRE
Journal :
Macromolecular Research
Accession number :
edsair.doi...........8e27a0767a060390d7c8b7a049da20b9
Full Text :
https://doi.org/10.1007/bf03219088