17 October 2012 Photo-actuating materials based on elastomers and modified carbon nanotubes
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Abstract
The photo-actuating behavior of new polymeric nanocomposite materials based on a commercial elastomer, an ethylene-vinylacetate copolymer (EVA), filled with multiwalled carbon nanotubes (MWCNT) was investigated. A good dispersion of the MWCNT within the elastomeric matrix was ensured by using a novel, specific compatibilizer consisting of pyrenyl and cholesteryl groups. A uniaxial orientation of the MWCNT within the matrix was induced with shear forces by employing a special custom-made punch/die system. Good dispergation and alignment of the MWCNT within the matrix were demonstrated by scanning electron microscopy. Transmission electron microscopy showed a good dispersion of the MWCNT within the composite. Photo-actuation was qualitatively characterized by atomic force microscopy and quantitatively characterized by nanoindentation. The samples prepared in the form of Braille element showed expansion upon illumination by light diodes. The maximal height deformation changes about 15% was detected when a blue diode was used.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE)
Klaudia Czaníková, Klaudia Czaníková, Igor Krupa, Igor Krupa, Markéta Ilcíková, Markéta Ilcíková, Peter Kasák, Peter Kasák, Dusan Chorvat, Dusan Chorvat, Marian Valentin, Marian Valentin, Miroslav Slouf, Miroslav Slouf, Jaroslav Mosnácek, Jaroslav Mosnácek, Matej Micušík, Matej Micušík, Mária Omastová, Mária Omastová, } "Photo-actuating materials based on elastomers and modified carbon nanotubes," Journal of Nanophotonics 6(1), 063522 (17 October 2012). https://doi.org/10.1117/1.JNP.6.063522 . Submission:
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