Vliv keramických nanoprášků na reologii termoplastických suspenzí

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F05%3APU55204" target="_blank" >RIV/00216305:26210/05:PU55204 - 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

Effect of ceramic nanopowders on rheology of thermoplastic suspensions

Popis výsledku v původním jazyce

Rheological behaviour of thermoplastic polymer melts containing 20 to 50 vol.% of ceramic nanopowders was studied. For the preparation of thermoplastic polymer suspensions three ZrO2 powders with specific surface areas from 6.5 to 123 m2 g-1 were used. Using a capillary rheometer, viscous behaviour was examined in the temperature range from 100 to 150 degC and in the shear rate range from 100 to 1000 s-1. The viscosity of suspensions increased with increasing specific surface area of ceramic powder. Thee suspensions were of pseudoplastic nature, which was described by the power law. The power law exponent and the activation energy of viscous flow of suspensions decreased almost linearly with increasing specific surface area of the powder. The maximum volume fraction of the powder in the suspension also decreased with increasing specific surface area of the powder. The causes of the changes in viscous behaviour of the suspensions in dependence on the specific surface area of powders wer

Název v anglickém jazyce

Effect of ceramic nanopowders on rheology of thermoplastic suspensions

Popis výsledku anglicky

Rheological behaviour of thermoplastic polymer melts containing 20 to 50 vol.% of ceramic nanopowders was studied. For the preparation of thermoplastic polymer suspensions three ZrO2 powders with specific surface areas from 6.5 to 123 m2 g-1 were used. Using a capillary rheometer, viscous behaviour was examined in the temperature range from 100 to 150 degC and in the shear rate range from 100 to 1000 s-1. The viscosity of suspensions increased with increasing specific surface area of ceramic powder. Thee suspensions were of pseudoplastic nature, which was described by the power law. The power law exponent and the activation energy of viscous flow of suspensions decreased almost linearly with increasing specific surface area of the powder. The maximum volume fraction of the powder in the suspension also decreased with increasing specific surface area of the powder. The causes of the changes in viscous behaviour of the suspensions in dependence on the specific surface area of powders wer

Druh

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

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F04%2F1206" target="_blank" >GA106/04/1206: Příprava objemové nanokrystalické keramiky z nanometrických prášků</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název periodika

Ceramics International

ISSN

0272-8842

e-ISSN

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Svazek periodika

31

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

845-849

Kód UT WoS článku

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EID výsledku v databázi Scopus

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