Mechanical and thermomechanical properties of polycarbonate-based polyurethane-silica nanocomposites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F11%3A00364732" target="_blank" >RIV/61389013:_____/11:00364732 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2013%2004.pdf" target="_blank" >http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2013%2004.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Mechanical and thermomechanical properties of polycarbonate-based polyurethane-silica nanocomposites

Popis výsledku v původním jazyce

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 ofthe prepared samples. The best mechanical and thermomechanical properties were found for the sample filled with 0.5 wt.% of Nanosilica 999.

Název v anglickém jazyce

Mechanical and thermomechanical properties of polycarbonate-based polyurethane-silica nanocomposites

Popis výsledku anglicky

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 ofthe prepared samples. The best mechanical and thermomechanical properties were found for the sample filled with 0.5 wt.% of Nanosilica 999.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GAP108%2F10%2F0195" target="_blank" >GAP108/10/0195: Nové vícesložkové polyurethany - příprava a charakterizace</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Processing and Application of Ceramics

ISSN

1820-6131

e-ISSN

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Svazek periodika

5

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CS - Srbsko a Černá Hora

Počet stran výsledku

5

Strana od-do

155-159

Kód UT WoS článku

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EID výsledku v databázi Scopus

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