Počet záznamů: 1
Mechanical and thermomechanical properties of polycarbonate-based polyurethane-silica nanocomposites
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SYSNO ASEP 0364732 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Mechanical and thermomechanical properties of polycarbonate-based polyurethane-silica nanocomposites Tvůrce(i) Poreba, Rafal (UMCH-V) RID, ORCID
Špírková, Milena (UMCH-V) RID, ORCID
Hrdlička, Z. (CZ)Zdroj.dok. Processing and Application of Ceramics - ISSN 1820-6131
Roč. 5, č. 3 (2011), s. 155-159Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. CS - CS Klíč. slova fumed silica ; polycarbonate diol ; nanocomposites Vědní obor RIV CD - Makromolekulární chemie CEP GAP108/10/0195 GA ČR - Grantová agentura ČR CEZ AV0Z40500505 - UMCH-V (2005-2011) Anotace In this work aliphatic polycarbonate-based polyurethane-silica nanocomposites were synthesized and characterized. The influence of the type and of the concentration of nanofiller differing in average particle size (7 nm for Aerosil 380 and 40 nm for Nanosilica 999) on mechanical and thermomechanical properties was investigated. DMTA measurements showed that Nanosilica 999, irrespective of its concentration, slightly increased the value of the storage shear modulus G’ but Aerosil 380 brings about a nearly opposite effect, the shear modulus in the rubber region decreases with increasing filler content. Very high elongations at break ranging from 800% to more than 1000%, as well as high tensile strengths illustrate excellent ultimate tensile properties of the prepared samples. The best mechanical and thermomechanical properties were found for the sample filled with 0.5 wt.% of Nanosilica 999. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2012 Elektronická adresa http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2013%2004.pdf
Počet záznamů: 1