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CNT pumps and breaks/applications with out-of-plane actuators

: Addinall, Raphael; Kosidlo, Urszula

presentation urn:nbn:de:0011-n-2331399 (1.2 MByte PDF)
MD5 Fingerprint: b0a89e58e2595a188dd0cae1ffd05233
Created on: 15.3.2013

Verl, Alexander (Hrsg.); Bauernhansl, Thomas (Hrsg.) ; Fraunhofer-Institut für Produktionstechnik und Automatisierung -IPA-, Stuttgart:
International Workshop on Electroactive Polymers 2013 : February 19th, 2013, Stuttgart. Fraunhofer IPA Workshop F 278
Stuttgart, 2013 (Fraunhofer IPA Workshop F 278)
11 Folien
International Workshop on Electroactive Polymers <2013, Stuttgart>
Conference Paper, Electronic Publication
Fraunhofer IPA ()
Carbon Nanotube (CNT); Aktor; Aktuator; actuator

Since their discovery by Professor Iijima in 1991 carbon nanotubes (CNT) have produced much excitement in the world of nanotechnology. One of the areas showing much potential, is CNT-Ionic-polymer based actuators for use in applications such as valves, breaking systems or even artificial muscles.
At Fraunhofer IPA the development of such actuators has been a key area of research for the last ten years. The optimisation of dry actuators, their system integration and actuation multiplication has lead to many advances in this particular domain [CNT-Ionic liquid-polymer based actuators].
Up till now geometry has been a governing factor on the displacement properties of actuators. For example long thin actuators generate a larger displacement, circular provide more force and ultra thin actuators move at a much higher frequency. Furthermore the incorporation of many actuators into stacks with an aim of multiplying any given characteristic (force, displacement, speed) has also been studied. Lastly the interaction between contact electrodes and multiple actuator systems has been a governing parameter often neglected.
When considering the multiple possibilities of usage once displacement, force and reaction rate has been determined, their use in future niche applications is nearly unlimited. A system which uses particularly low power of 1W (2V with 0.5A) means that this technology can be used in mobile systems as they can be easily powered by batteries, further increasing their application portfolio.
Where smooth, precise movement is needed CNT based actuators can be applied such as in high end optical systems. Where low powered, disposable actuators are needed with in the bio-medical industry... CNT actuators can be applied. Where low weight, high cycle life is needed such as in the aerospace / automotive industry... CNT actuators can be applied. As can be concluded Applications where CNT actuators are potential candidates is huge, the need for further manufacturing developments to enable industrialisation is the next stepping stone in order to unlock the full potential of this new and promising technology.