About: Influence of thermal treatment on glass transition temperature of thermosetting epoxy laminate

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	An influence of accelerated thermal treatment of thermosetting epoxy laminate on its glass transition temperature was studied. Lamplex? FR-4 glass fibre einforced epoxy laminate (used for printed circuit boards manufacturing) was used for the purpose of the experiment. Composite was exposed to thermal treatment at the temperatures from 170 to 200 °C for the time of 10 ? 480 hours. Glass transition (Tg) was analyzed via dynamic mechanical analysis (DMA). It has been proved that glass transition temperature rapidly decreases in reaction to thermal stress. Obtained Tg data were used for Arrhenius plots for different critical temperatures (Tg-crit. = 105 ?120 °C). From their slopes (-Ea/R) the activation energy of the thermal degradation process was calculated as 75,5 kJ/mol. DMA recorded besides this main relaxation mechanism also one smaller relaxation process in the most aged samples. Microscopic analysis of sample?s structure showed the presence of expressive germs of degradation both on the surface An influence of accelerated thermal treatment of thermosetting epoxy laminate on its glass transition temperature was studied. Lamplex? FR-4 glass fibre einforced epoxy laminate (used for printed circuit boards manufacturing) was used for the purpose of the experiment. Composite was exposed to thermal treatment at the temperatures from 170 to 200 °C for the time of 10 ? 480 hours. Glass transition (Tg) was analyzed via dynamic mechanical analysis (DMA). It has been proved that glass transition temperature rapidly decreases in reaction to thermal stress. Obtained Tg data were used for Arrhenius plots for different critical temperatures (Tg-crit. = 105 ?120 °C). From their slopes (-Ea/R) the activation energy of the thermal degradation process was calculated as 75,5 kJ/mol. DMA recorded besides this main relaxation mechanism also one smaller relaxation process in the most aged samples. Microscopic analysis of sample?s structure showed the presence of expressive germs of degradation both on the surface (en)
Title	Influence of thermal treatment on glass transition temperature of thermosetting epoxy laminate Influence of thermal treatment on glass transition temperature of thermosetting epoxy laminate (en)
skos:prefLabel	Influence of thermal treatment on glass transition temperature of thermosetting epoxy laminate Influence of thermal treatment on glass transition temperature of thermosetting epoxy laminate (en)
skos:notation	RIV/49777513:23220/09:00501558!RIV10-MSM-23220___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM4977751310)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Sušír, Josef Prosr, Pavel Mentlík, Václav Polanský, Radek
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	Západočeská univerzita v Plzni / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	319410
http://linked.open...ai/riv/idVysledku	RIV/49777513:23220/09:00501558
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Dynamic mechanical analysis; epoxy resin; composite; printed circuit board; activation energy; Arrhenius plot (en)
http://linked.open.../riv/klicoveSlovo	composite printed circuit board activation energy epoxy resin Dynamic mechanical analysis Arrhenius plot
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[BCEEA2A290F0]
http://linked.open...i/riv/nazevZdroje	Polymer Testing
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	28
http://linked.open...iv/tvurceVysledku	Mentlík, Václav Polanský, Radek Prosr, Pavel Sušír, Josef
http://linked.open...ain/vavai/riv/wos	000266856700010
http://linked.open...n/vavai/riv/zamer	Diagnostic of interactive processes in electrical engineering
issn	0142-9418
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	23220

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