Organizations & People
Title: Structure and properties
of polymer/clay nano-composite materials
Chairmen: Sung Chul
Kim and K. Nitta
Chai, J. Covas,
D. Dijkstra, M.
Hess, J. He, F.
Langouche, M. Laun,
J.H. Lee, S.
Maeda, M. Mangnus,
G. Michler, I.
Takigawa, W.S. Veeman,
and W. Zoetelief
To evaluate the relationship between the morphology and the mechanical,
rheological and transport properties of the polymer nano-composite
Recent developments in the technology of intercalating polymer chains
in nanoscale layers of clay have produced new types of high performance
polymer composites. However, the effects of the higher order structure
on mechanical properties are not yet well understood. For example,
little is known on the crystallization of polymer chains confined
in the nano-scale domains and subsequently occurring morphology
formation. Since mechanical properties of the composites are strongly
affected by the higher order structure, the control of the higher
order structure becomes a key technology to design nano composites
with excellent performance and/or functions. The purpose of this
study is to clarify the relationship between the higher order structure
and properties of commercially available nano-composites composed
of polyamide, PMMA and clay. The topics cover a wide range of research
from characterization of the components through physical properties
in the solid state. Rheological properties of the melts are also
an important topic related to the processability of the composites.
In this project, several commercial grade nanocomposites comprising
polyamide/clay and PMMA/clay will be supplied from the supplier.
We expect Ube and Unitika to provide polyamide/clay and Lucite to
provide PMMA/clay samples. The following topics will be studied.
Morphology and Crystallization BehaviorWAXD, SAXS,
DSC, POM, TEM and AFM Measurements
Rheological Properties of the MeltsDynamic Visocoelasticity,
Stress Relaxation, Shear and Elongational Flow Properties
Mechanical Properties in the Solid StateStress-Strain
Behavior, Stress Relaxation, Creep, Dynamic Mechanical Properties,
Impact Strength, Fatigue Behavior, Micromechanics/Fracture
Thermal Diffusion, Gas Permeability, Solvent Resistance
Degradation and Flammability Behavior
Two commercial samples of Nylon/clay nanocomposite and one sample
of PP/clay nanocomposite were received. The samples were distributed
among the participating members and molecular characterization,
morphology, rheological and mechanical, physical studies are under
progress in different laboratories.
Last update: 17 March 2005
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