Společná objemová a entalpická relaxační odezva iniciovaná teplotním sestupným skokem

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F06%3A63504624" target="_blank" >RIV/70883521:28110/06:63504624 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Volume Relaxation in Amorphous and Semicrystalline PET

Popis výsledku v původním jazyce

Several samples of polyethyleneterephthalate (PET) in respect of their crystallinity were investigated, from pure amorphous, the samples with different content of crystalline phase to fully crystallize one. DSC analysis and mercury-in-glass dilatometry were used to determine the effect of crystalline phase content on the behavior of amorphous phase. Such thermal analysis show that the presence of crystalline phase results in significant changes of thermal properties, such as an increase in Tg, broadening the transition zone, and smaller change of thermal expansion coefficient and heat flow in glass transition region. Finally, volume relaxation data were determined as direct measurement of volume contraction during isothermal stage below its glass transition temperature together with its evaluation from heating scans of relaxed PET by integrating of peaks in thermal expansion coefficient. relaxation times can be mentioned.

Název v anglickém jazyce

Volume Relaxation in Amorphous and Semicrystalline PET

Popis výsledku anglicky

Several samples of polyethyleneterephthalate (PET) in respect of their crystallinity were investigated, from pure amorphous, the samples with different content of crystalline phase to fully crystallize one. DSC analysis and mercury-in-glass dilatometry were used to determine the effect of crystalline phase content on the behavior of amorphous phase. Such thermal analysis show that the presence of crystalline phase results in significant changes of thermal properties, such as an increase in Tg, broadening the transition zone, and smaller change of thermal expansion coefficient and heat flow in glass transition region. Finally, volume relaxation data were determined as direct measurement of volume contraction during isothermal stage below its glass transition temperature together with its evaluation from heating scans of relaxed PET by integrating of peaks in thermal expansion coefficient. relaxation times can be mentioned.

Druh

D - Stať ve sborníku

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Polymer Processing Society 22nd Annual Meeting PPS

ISBN

4-9093109-2-6

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

1-1

Název nakladatele

Polymer Processing Society

Místo vydání

Akron

Místo konání akce

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Datum konání akce

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Typ akce podle státní příslušnosti

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Kód UT WoS článku

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