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Evaluation relaxed volume of .sub.a-./sub.PMMA and .sub.a-./sub.PMMA/CB from heating
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SYSNO ASEP 0429170 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Evaluation relaxed volume of a-PMMA and a-PMMA/CB from heating Author(s) Hadač, J. (CZ)
Slobodian, P. (CZ)
Sáha, P. (CZ)
Říha, Pavel (UH-J) SAI, ORCID, RIDSource Title Chemické listy. - : Česká společnost chemická - ISSN 0009-2770
Roč. 108, special issue 1 (2014), s. 50-58Number of pages 9 s. Publication form Print - P Language eng - English Country CZ - Czech Republic Keywords isobaric heating ; physical aging ; PMMA ; volume relaxation ; polymer/carbon black composite Subject RIV BK - Fluid Dynamics OECD category Nano-processes (applications on nano-scale) Institutional support UH-J - RVO:67985874 CEZ AV0Z20600510 - UH-J (2005-2011) UT WOS 000344829700011 EID SCOPUS 84901831209 Annotation Volume relaxation of a-PMMA and a-PMMA/carbon black composites during heating has been analyzed from the heating scans. It concerns two ways of physical aging initiation, temperature down-jump and cooling. Samples were heated and v(T) dependency measured after annealing at various aging times bellow Tg Relaxed volume was evaluated from peaks of (T) dependencies, derivated from v(T) curves. Good agreement between isothermal relaxation measurements and relaxed volume from heating has been found out. Presence of filler particles in composite lead to reduction of relaxation response and rate of relaxation changes in PMMA. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2015
Number of the records: 1