About: Low pressure plasmachemical processing of multi-walled carbon nanotubes for the production of polyurethane composite films with improved mechanical properties

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About: Low pressure plasmachemical processing of multi-walled carbon nanotubes for the production of polyurethane composite films with improved mechanical properties Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Multiwalled carbon nanotubes (CNTs) were modified in low pressure capacitively coupled discharges (13.56 and 27.12 MHz) in Ar/NH3 and oxygen-containing gas mixtures. A direct functionalization by nitrogen groups was not possible but 1-3 percentage of carbon-oxygen bonds increased with the total oxygen content on the expenses of sp(2)C almost independently on the plasma conditions. The plasma modified CNTs were used as fillers for polyurethane (PU) composites prepared by in situ polymerization. The composites were investigated by depth sensing indentation that revealed the existence of surface harder layer caused probably by different polymerization process in the bulk and at the surface that was in a contact with air. The significant improvement of the hardness and elastic modulus was observed when plasma-modified CNTs with high amount of oxygen were added to PU. It also improved the creep resistance of the PU, whereas the ability to recover from a deformation, i.e. anelastic recovery, did not change much. Multiwalled carbon nanotubes (CNTs) were modified in low pressure capacitively coupled discharges (13.56 and 27.12 MHz) in Ar/NH3 and oxygen-containing gas mixtures. A direct functionalization by nitrogen groups was not possible but 1-3 percentage of carbon-oxygen bonds increased with the total oxygen content on the expenses of sp(2)C almost independently on the plasma conditions. The plasma modified CNTs were used as fillers for polyurethane (PU) composites prepared by in situ polymerization. The composites were investigated by depth sensing indentation that revealed the existence of surface harder layer caused probably by different polymerization process in the bulk and at the surface that was in a contact with air. The significant improvement of the hardness and elastic modulus was observed when plasma-modified CNTs with high amount of oxygen were added to PU. It also improved the creep resistance of the PU, whereas the ability to recover from a deformation, i.e. anelastic recovery, did not change much. (en)
Title	Low pressure plasmachemical processing of multi-walled carbon nanotubes for the production of polyurethane composite films with improved mechanical properties Low pressure plasmachemical processing of multi-walled carbon nanotubes for the production of polyurethane composite films with improved mechanical properties (en)
skos:prefLabel	Low pressure plasmachemical processing of multi-walled carbon nanotubes for the production of polyurethane composite films with improved mechanical properties Low pressure plasmachemical processing of multi-walled carbon nanotubes for the production of polyurethane composite films with improved mechanical properties (en)
skos:notation	RIV/68378271:_____/13:00437035!RIV15-AV0-68378271
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(ED1.1.00/02.0068), P(ED2.1.00/03.0086), P(GAP205/10/1374)
http://linked.open...iv/cisloPeriodika	Jul
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Houdková, Jana
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	85478
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/13:00437035
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	plasma functionalization; CCP; carbon nanotubes; polyurethane composites (en)
http://linked.open.../riv/klicoveSlovo	carbon nanotubes plasma functionalization polyurethane composites CCP
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[2F32ED47D3E7]
http://linked.open...i/riv/nazevZdroje	Thin Solid Films
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Central european institute of technology Regional R&D center for low-cost plasma and nanotechnology surface modifications Plasmachemical processes for synthesis of carbon nanotubes and study of their functional properties
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	538
http://linked.open...iv/tvurceVysledku	Buršíková, V. Eliáš, M. Zajíčková, L. Houdková, Jana Mazánková, V. Michlíček, M. Studýnková, Z.
http://linked.open...ain/vavai/riv/wos	000320584800003
issn	0040-6090
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.tsf.2012.11.126

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