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Statements

Subject Item
n2:RIV%2F68378271%3A_____%2F13%3A00437035%21RIV15-AV0-68378271
rdf:type
n11:Vysledek skos:Concept
dcterms: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.
dcterms: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
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
skos:notation
RIV/68378271:_____/13:00437035!RIV15-AV0-68378271
n3:aktivita
n13:I n13:P
n3:aktivity
I, P(ED1.1.00/02.0068), P(ED2.1.00/03.0086), P(GAP205/10/1374)
n3:cisloPeriodika
Jul
n3:dodaniDat
n15:2015
n3:domaciTvurceVysledku
n17:7664893
n3:druhVysledku
n10:J
n3:duvernostUdaju
n8:S
n3:entitaPredkladatele
n6:predkladatel
n3:idSjednocenehoVysledku
85478
n3:idVysledku
RIV/68378271:_____/13:00437035
n3:jazykVysledku
n16:eng
n3:klicovaSlova
plasma functionalization; CCP; carbon nanotubes; polyurethane composites
n3:klicoveSlovo
n14:CCP n14:plasma%20functionalization n14:polyurethane%20composites n14:carbon%20nanotubes
n3:kodStatuVydavatele
CH - Švýcarská konfederace
n3:kontrolniKodProRIV
[2F32ED47D3E7]
n3:nazevZdroje
Thin Solid Films
n3:obor
n18:BM
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
7
n3:projekt
n4:GAP205%2F10%2F1374 n4:ED1.1.00%2F02.0068 n4:ED2.1.00%2F03.0086
n3:rokUplatneniVysledku
n15:2013
n3:svazekPeriodika
538
n3:tvurceVysledku
Houdková, Jana Studýnková, Z. Zajíčková, L. Eliáš, M. Mazánková, V. Michlíček, M. Buršíková, V.
n3:wos
000320584800003
s:issn
0040-6090
s:numberOfPages
9
n7:doi
10.1016/j.tsf.2012.11.126