Bayer MaterialScience AG and Bayer
Technology Services GmbH will be making their third joint
appearance at "nanotech" between February 13 and 15 this year in Tokyo.
The world’s largest and most high-profile exhibition for
nanotechnology is a key gateway for both Bayer companies to the
Japanese market and also the Asia-Pacific market as a whole.
"Nanotechnology is developing at a breathtaking pace in this region
because it is already being used in a large number of sectors.
That is why we are presenting ourselves at this fair as a
skilled industrial partner for the nanotechnology sector. Our
activities at nanotech will focus on commercially viable, cutting-edge
Bayer materials and processes such as Baytubes® carbon
nanotubes," explains Dr. Péter Krüger, head of the
Nanotechnology Working Group at Bayer. The key topics at the Bayer
stand are "mobility", "organic electronics", "packaging" and
Collaboration with Toyota Tsusho on Baytubes® The
strategic collaboration on Baytubes® that Bayer MaterialScience
has established with Toyota Tsusho in the run-up to "nanotech"
underlines the importance of the Asian market for the Bayer subgroup.
Toyota Tsusho will market and distribute Baytubes® in countries
such as Japan, China, Hong Kong, Singapore, Taiwan and India, and will
also provide technical support for carbon nanotubes operations in the
region. "Besides our partner’s exceptional technical skills
and market know-how, its outstanding business relationships with
potential buyers in Japan, for example, will help us to strengthen our
position as one of the world’s three largest suppliers of
carbon nanotubes," says Martin Schmid, head of global Baytubes®
New product line: Baydot® (quantum dots) Bayer
Technology Services is presenting a new product line under the name
Baydot® at "nanotech". These nanoparticles - also known as
quantum dots - exhibit different physical properties depending on their
size. They have great potential for use in areas such as
opto-electronics, photovoltaics, security labeling and functional
polymer composites. Entry into these markets has until now been
hampered by the complex and expensive production process. "Our new
process enables us to produce quantum dots cost-effectively and with a
high degree of purity on an industrial scale.
This provides us with an excellent basis from which to exploit
the broad spectrum of potential applications," explained Dr. Frank
Rauscher, Project Manager for Baydot® at Bayer Technology
Baytubes® - focusing on new applications Visitors to
"nanotech" can also expect to encounter the "F1-EX-Nano". This plastic
transport drum, which derives the electrical conductivity it needs from
carbon nanotubes, is the first to be designed for use in
explosion-protected zones. The drum was developed by Schütz
GmbH & Co. KGaA and Bayer MaterialScience as part of a joint
project study. Used instead of carbon black, Baytubes® are
applied at a low concentration in the polyethylene outer layer and are
responsible for the drum’s antistatic properties.
Furthermore, they improve the drum’s low-temperature impact
strength and resistance to chemicals.
Carbon nanotubes also have major potential for use in
lithium-ion batteries, where lifespan and performance are dependent on
a consistent unimpeded charge flux. Baytubes® C150 HP from
Bayer MaterialScience ensure a reliable charge flux over a long period
of time. The strength of this product is its exceptional purity, which
is essential for the manufacture of lithium-ion batteries.
A forthcoming application of Baytubes® is the
"md4-1000" remote-controlled flying camera from the microdrones
company. This product can be used, for example, during sporting events
such as skiing, when it can transmit pictures live from the air. The
use of carbon nanotubes means that the frame of the drone can be made
even lighter than that of the previous model, without affecting
stability. This greatly increases the maximum flight time of the camera.
Sol-gel coatings - hard, scratch-resistant and elastic An
innovative highlight in sol-gel coatings is Bayresit® VPLS
2331. Key features of this ethoxycarbosiloxane crosslinker include its
flexible ring structure and outstanding functionality. These ensure
that coatings exhibit two seemingly conflicting properties - a high
level of elasticity on the one hand and hardness and scratch resistance
on the other. Sol-gel systems formulated with the crosslinker only
shrink very slightly during thermal curing, making thicker coatings
possible and improving processability.
What’s more, compared to other sol-gel systems,
curing can be performed at moderate temperatures and within a short,
cost-effective timeframe. The crosslinker is also ideal for coatings
that contain nanoparticles. It is particularly suitable for use in
easy-to-clean and anti-graffiti paints, corrosion protection and
Nano inks - printing flexible wiring diagrams cost-effectively
A further innovation is the customized range of BayInk nano-particle
silver inks designed for the new generation of ink-jet printers. These
inks make it possible to cost-effectively produce wiring diagrams -
whose conductive tracks are thinner than 20 micrometers - on an
industrial scale. BayInk achieves ten percent of the specific
conductivity of elemental silver with a relatively low percentage
proportion of the precious metal and adheres well to various
substrates. In addition, the printed conductive tracks are very
flexible and ductile. BayInk is particularly useful for "printed
electronics" applications such as sensors, actuators and RFID systems.
Product stewardship program for the safety of nanomaterials A
key topic at the Bayer stand will also be the comprehensive stewardship
program that Bayer MaterialScience has put in place to ensure the
safety and environmental friendliness of nanomaterials. "We have
acquired a good deal of knowledge and experience in the safe handling
of nanomaterials such as Baytubes®. This applies both to the
physical-chemical parameters of these materials and the analysis of
their toxicological and ecotoxicological properties," observes Dr.
Jacques Ragot, Product Stewardship Manager of Nanomaterials. Bayer is
also involved in numerous national projects and working groups to
examine the safety of nanomaterials. These include "NanoCare" and
"TRACER", both of which are financially supported by the
Bundesministerium für Bildung und Forschung (BMBF - German
Federal Ministry for Education and Research).