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Abstract:
Physical properties of extrusions such
as films, sheets, and tubes depend on the arrangements
and shapes of polymer components at the microscopic
scale. Consequently, co-extrusion is not necessarily
the best process for optimizing multiple properties.
This presentation describes how a new practical
processing technology, chaotic or “smart”
blending, is implemented for fabricating extrusions
of nylon and ethylene-vinyl alcohol random copolymer
(EVOH) that demonstrate low oxygen permeation,
high impact toughness, and reduced solvent penetration.
Chaotic blending intrinsically develops blends
with high interfacial area, so it has special
applicability to barrier films, packaging, and
membranes.
Presenter:
Dave Zumbrunnen, Clemson University
Dave Zumbrunnen, Warren H. Owen-Duke Energy
Distinguished Professor of Clemson University,
performs research focusing on polymer processing
and process-structure-property relations in polymer
blends and composites. His research has been featured
in major journals and in industrial publications.
He was the first to propose that structured materials
can be formed by chaotic advection. This has led
to the development of “smart” blending
machines. He is a recipient of the Presidential
Faculty Fellow Award from the White House and
National Science Foundation, and is a Fellow of
the American Society of Mechanical Engineers.
He also serves as chief technology officer of
Smart Blending Technologies LLC, a company licensed
by Clemson University.
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| Registration Fees |
Individual |
Group |
| SPE Member |
$99.00 |
$150.00 |
| Nonmember |
$150.00 |
$175.00 |
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