About: Plasma modification of polycarbonates

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We deposited protective coatings on polycarbonates from hexamethyldisiloxane (HMDSO) and HMDSO/O2 mixtures by plasma enhanced CVD method. We studied especially deposition rate, optical constants in UV/VIS, film composition and mechanical properties in dependence on rf power and oxygen to HMDSO flow rate ratio. Plasma polymer HMDSO films (PP-HMDSO)showed good transparency in the visible and increased absorption in UV region. The optical constants of HMDSO/O2 films were similar to the tabulated SiO2. In general, the films were characterised by a relative high content of hydrogen (22-66 %) and a carbon content below 20 %. The films deposited at the oxygen to HMDSO flow rate ratio higher than 15 exhibit higher tensile stress and higher hardness than those prepared at ratios of 5-10. The nature of the internal stress changed to compressive for PP-HMDSO. Plasma pretreatment of polycarbonate in argon significantly improved the film adherence especially when low powers and short treatment times were used. We deposited protective coatings on polycarbonates from hexamethyldisiloxane (HMDSO) and HMDSO/O2 mixtures by plasma enhanced CVD method. We studied especially deposition rate, optical constants in UV/VIS, film composition and mechanical properties in dependence on rf power and oxygen to HMDSO flow rate ratio. Plasma polymer HMDSO films (PP-HMDSO)showed good transparency in the visible and increased absorption in UV region. The optical constants of HMDSO/O2 films were similar to the tabulated SiO2. In general, the films were characterised by a relative high content of hydrogen (22-66 %) and a carbon content below 20 %. The films deposited at the oxygen to HMDSO flow rate ratio higher than 15 exhibit higher tensile stress and higher hardness than those prepared at ratios of 5-10. The nature of the internal stress changed to compressive for PP-HMDSO. Plasma pretreatment of polycarbonate in argon significantly improved the film adherence especially when low powers and short treatment times were used. (en)
Title	Plasma modification of polycarbonates Plasma modification of polycarbonates (en)
skos:prefLabel	Plasma modification of polycarbonates Plasma modification of polycarbonates (en)
skos:notation	RIV/00216224:14310/01:00004619!RIV/2002/MSM/143102/N
http://linked.open.../vavai/riv/strany	449
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/00/P037), P(GV106/96/K245), P(GV202/97/K038), P(KSK1010104), P(VS96084), Z(AV0Z1048901), Z(MSM 143100003)
http://linked.open...iv/cisloPeriodika	142-144
http://linked.open...vai/riv/dodaniDat	2002
http://linked.open...aciTvurceVysledku	Janča, Jan Peřina, Vratislav Macková, Anna Subedi, Deepak Prasad Zajíčková, Lenka Buršíková, Vilma
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	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	691252
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/01:00004619
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Plasma modification of polycarbonates (en)
http://linked.open.../riv/klicoveSlovo	Plasma modification of polycarbonates
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[6410D218F836]
http://linked.open...i/riv/nazevZdroje	Surface & coatings technology
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Condensed matter physics and materials science Plasma deposition of protective coatings: characterisation of prepared films and diagnostics of reactive plasmas used Hard and superhard coatings prepared by unconventional plasma processes Common laboratories for applied plasma physics and plasma chemistry in PřF and PedF MU, VA Brno and ÚFP AV ČR in Prague Centre for fundamental and applied neutron research
http://linked.open...UplatneniVysledku	2001
http://linked.open...v/svazekPeriodika	2001
http://linked.open...iv/tvurceVysledku	Buršíková, Vilma Janča, Jan Macková, Anna Zajíčková, Lenka Peřina, Vratislav Smirnov, Sergej Subedi, Deepak Prasad
http://linked.open...n/vavai/riv/zamer	Theoretical and experimental investigation of atomic nuclei and exploitation of nuclear methods in interdisciplinary research http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20143100003
issn	0257-8972
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	14310

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