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AuthorCzaniková, Klaudia
AuthorKrupa, Igor
AuthorRačko, Dušan
AuthorŠmatko, Vasilij
AuthorCampo, Eva M
AuthorPavlova, Ewa
AuthorOmastová, Mária
Available date2022-05-31T19:01:31Z
Publication Date2015
Publication NameMaterials Research Express
ResourceScopus
Identifierhttp://dx.doi.org/10.1088/2053-1591/2/2/025601
URIhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84953426061&doi=http://dx.doi.org/10.1088%2f2053-1591%2f2%2f2%2f025601&partnerID=40&md5=5a3fb417bd494b01e7b8b6f7983eac5d
URIhttp://hdl.handle.net/10576/31886
AbstractThe development of new types of tactile displays based on the actuation of composite materials can aid the visually impaired. Micro/nano systems based on ethylene vinyl acetate (EVA) polymeric matrices enriched with multiwalled carbon nanotubes(MWCNT) can produce ensembles capable of lightinduced actuation. In this report, we investigate two types of commercial EVA copolymers matrices containing 28 and 50 wt% vinyl-acetate (VA). Non-covalent modification of carbon nanotubes was achieved through a compatibilization technique that appends the pyrenenyl and cholesteryl groups on the carbon nanotubes (CNTs) surface. EVA/MWCNTnanocomposites were prepared by casting from a solution. These composites were shaped into Braille elements using molds. The deformation of the Braille element (BE) under light-emitting diode (LED) illumination was observed for the first time by in situ scanning electron microscopy (SEM). The superior actuation performance promoted by the EVA/MWCNTnanocomposites indicates that these materials will be useful in the future as lightdriven micro/nano system actuators.
Languageen
PublisherInstitute of Physics Publishing
SubjectActuators
Capillary flow
Carbon nanotubes
Ethylene
Nanotubes
Polyvinyl acetates
Scanning electron microscopy
Thermoplastic elastomers
Yarn
Cholesteryl groups
Ethylene vinyl acetates
In-situ electron microscopy
Nanotube composites
Polymeric matrices
Polymeric nanocomposites
Situ scanning electron microscopies (SEM)
Visually impaired
Multiwalled carbon nanotubes (MWCN)
TitleIn situ electron microscopy of Braille microsystems: Photoactuation of ethylene vinyl acetate/carbon nanotube composites
TypeArticle
Issue Number2
Volume Number2
dc.accessType Abstract Only


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