Plastics News - Show Daily - October 18, 2023 - 13

FAKUMA SHOW DAILY
Plastics News, October 18, 2023 * 13
Thermosets, technology research
focus on cutting fuel cell costs
By David Vink
Plastics News Correspondent
Increasing interest in fuel cells
is driving new research by plastics
companies that say they can
offer lower-cost components.
Würzburg, Germany-based SKZ
Süddeutsches Kunststoffzentrum
has started a new research project
with Bochum, Germany-based
planetary roller extruder producer
Entex Rust & Mitschke GmbH
to develop extruded bipolar separator
plates (BPP) in highly fi lled
conductive thermosetting plastic.
The plates are at the center of
every polymer electrolyte membrane
fuel cell (PEMFC) and the
high cost of fuel cell components
such as BPPs has restricted development
of PEMFCs. SKZ says
continuously extruded thermoset
BPPs have potential, if successful,
to drastically reduce
production costs.
" We see great potential to produce
more economically by direct
extrusion with the help of Entex's
planetary roller extruder, with its
suitability for processing highly
fi lled and thermally sensitive materials, "
said Andreas Köppel, SKZ
cross-linked materials manager.
Fuel cell conference
A Nov. 21-22 conference in
Duisburg, Germany, with the ZBT
center for fuel cell technology on
plastics for fuel cells and modern
battery technology will include
presentations by several Fakuma
2023 exhibitors. In terms of
conductive compounds, these
are by Daniel Hamburger of Hamburg-based
Mocom Compounds
GmbH & Co. KG (Hall B4, Booth
4206) and Frank Barlog of Overath,
Germany-based Barlog Plastics
GmbH (Hall A3, Booth 3209).
Thorsten Stirner of Stuttgart,
Germany-based compounding
extrusion machinery producer
Coperion GmbH (Hall A6, Booth
6312) talks about compounding
and extrusion for BPPs. Coperion
suggests FET feed enhancement
technology equipment with a ZSK
twin-screw extruder. The company
works in the GrabaT graphite-based
BPP project with Robert
Bosch and the IKT plastics technology
institute at the University
of Stuttgart (Hall A5, Booth 5104).
Thermoplastic BPP extrusion
for redox fl ow batteries is covered
by Marsberg, Germany-based
Centroplast Engineering Plastics
GmbH. It claims extrusion with
" renowned companies " of the largest
BPP in " graphite polymer compound. "
The 8-millimeter-thick
plate was 1,200 mm wide. It has
also extruded 2-mm- and 0.6-mmthick,
450-mm-wide plates.
Roel van de Pas of Arnhem,
Netherlands-based Nedstack
Fuel Cell Technology BV talks
about
engineering thermoplastics
for PEMFCs.
ZBT has assisted Nufringen,
Germany-based compounder
Ensinger GmbH (Hall B1, Booth
1307) in injection and compression
moldable graphite fi lled PP
compound development for low
-temperature BPPs, as one of the
company's four new business
factory projects. ZBT showed
PEMFC stacks made with these
materials at Hanover and K 2022
fairs. Ensinger presently works
on graphite- and carbon-fi lled PPS
for high-temperature BPPs.
The company has also been involved
in BPP development at the
Chemnitz University of Technology,
involving injection compression
molding 0.5-mm- to 3.5-mmthick,
135-mm by 135-mm plates
on a 32-tonnes clamping force
KraussMaffei PX320-2000 molding
machine, Jens Emmrich revealed
during a June 2022 BMW hydrogen
campus day. He also referred
to graphite-polymer extrusion
with an ZSC 25/44D twin-screw
extruder from Altdorf bei Nürnberg-Germany
based Noris Plastic
GmbH & Co. KG.
Elsewhere, Dresden, Germany-based
IPF polymer research
institute at Leibniz Institute produced
and tested graphite-fi lled
nylon, polybutylene terephthalate,
polyethylene, polypropylene
and polyvinylidene fl uoride BPPs.
Hochdorf, Germany-based
Leonhardt e.K. (Hall A5, Booth
5206) has started promoting an
injection moldable highly fi lled
tungsten/PEEK as an alternative
to graphite/PP.
Illustrations of an
Entex planetary
roller extruder.
Entex Illustrations
PEMFC stacks
made with moldable
graphite fi lled PP
compound.
Plastics News photo by
David Vink
Graphite-fi lled thermoplastic
bipolar plate molded by the
Chemnitz University of Technology.
Chemnitz University of Technology photo

Plastics News - Show Daily - October 18, 2023

Table of Contents for the Digital Edition of Plastics News - Show Daily - October 18, 2023

Plastics News - Show Daily - October 18, 2023 - 1
Plastics News - Show Daily - October 18, 2023 - 2
Plastics News - Show Daily - October 18, 2023 - 3
Plastics News - Show Daily - October 18, 2023 - 4
Plastics News - Show Daily - October 18, 2023 - 5
Plastics News - Show Daily - October 18, 2023 - 6
Plastics News - Show Daily - October 18, 2023 - 7
Plastics News - Show Daily - October 18, 2023 - 8
Plastics News - Show Daily - October 18, 2023 - 9
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Plastics News - Show Daily - October 18, 2023 - 11
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Plastics News - Show Daily - October 18, 2023 - 13
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Plastics News - Show Daily - October 18, 2023 - 24
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