Design, mesomorphic properties and rheological characterization of a novel calamitic low molecular weight liquid crystal

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00483778" target="_blank" >RIV/68378271:_____/17:00483778 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Design, mesomorphic properties and rheological characterization of a novel calamitic low molecular weight liquid crystal

Popis výsledku v původním jazyce

Electrorheological (ER) fluids are smart materials that experience an abrupt increase of viscosity when subjected to an external electric field applied perpendicular to the flow field. The reversible change in viscosity turns them suitable for applications in mechanical devices, like brakes, damping systems and clutches. Among the fluids capable of presenting ER effect are self-assembling materials, specifically the LCs. In this work the design and mesomorphic properties of a novel calamitic low molecular weight LC are presented. Small angle oscillatory shear measurements and steady state measurements were performed, in the nematic and smectic A phases, respectively, without and with an electric field applied perpendicular to the flow direction. The increase of the viscosity values was found less than three times while increasing the electric field up to 2 kV/mm. It gives evidence that this specific LC material can be potentially appropriate for application in electro-optic devices.n

Název v anglickém jazyce

Design, mesomorphic properties and rheological characterization of a novel calamitic low molecular weight liquid crystal

Popis výsledku anglicky

Electrorheological (ER) fluids are smart materials that experience an abrupt increase of viscosity when subjected to an external electric field applied perpendicular to the flow field. The reversible change in viscosity turns them suitable for applications in mechanical devices, like brakes, damping systems and clutches. Among the fluids capable of presenting ER effect are self-assembling materials, specifically the LCs. In this work the design and mesomorphic properties of a novel calamitic low molecular weight LC are presented. Small angle oscillatory shear measurements and steady state measurements were performed, in the nematic and smectic A phases, respectively, without and with an electric field applied perpendicular to the flow direction. The increase of the viscosity values was found less than three times while increasing the electric field up to 2 kV/mm. It gives evidence that this specific LC material can be potentially appropriate for application in electro-optic devices.n

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/GA16-12150S" target="_blank" >GA16-12150S: Samouspořádávající se vícefunkční fotosenzitivní materiály</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the Iberian Meeting on Rheology - The Multidisciplinary Science of Rheology - Towards a healthy and sustainable development

ISBN

978-84-697-5123-7

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

151-154

Název nakladatele

Valencia

Místo vydání

Spain

Místo konání akce

Valencia

Datum konání akce

8. 8. 2017

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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