Mezifázový povrch: charakterizace fyzikální a chemická modifikace, aplikace

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F04%3A63505097" target="_blank" >RIV/70883521:28110/04:63505097 - 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

Interfacial surface: characterization, physical and chemical modification, application

Popis výsledku v původním jazyce

This study deals predominantly with surface properties of cellulose derivatives. The investigation of surface tension has been carried out in aqueous cellulose derivative solutions and at solid state as well. The surface tension of solutions was determined by Wilhelmy tensiometric method for solutions. The surface tension parameters of cellulose ether films were calculated from the experimentally determined contact angles of apolar and polar liquids using four different methods: according to Owens and Went; Wu; Neumanna; van Oss, Chaudhury and Good. All of mentioned approaches are possible to use for determination of surface tension of cellulose ether films because they are in good agreement. The physical and chemical surface modifications were made byadding different electrolytes, cation-active and anion-active surfactants and various gas plasma treatment. From the kinetic study of swelling and dissolution cellulose derivatives it has been verified that temperature dependence of swel

Název v anglickém jazyce

Interfacial surface: characterization, physical and chemical modification, application

Popis výsledku anglicky

This study deals predominantly with surface properties of cellulose derivatives. The investigation of surface tension has been carried out in aqueous cellulose derivative solutions and at solid state as well. The surface tension of solutions was determined by Wilhelmy tensiometric method for solutions. The surface tension parameters of cellulose ether films were calculated from the experimentally determined contact angles of apolar and polar liquids using four different methods: according to Owens and Went; Wu; Neumanna; van Oss, Chaudhury and Good. All of mentioned approaches are possible to use for determination of surface tension of cellulose ether films because they are in good agreement. The physical and chemical surface modifications were made byadding different electrolytes, cation-active and anion-active surfactants and various gas plasma treatment. From the kinetic study of swelling and dissolution cellulose derivatives it has been verified that temperature dependence of swel

Druh

O - Ostatní výsledky

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

<a href="/cs/project/FD-K3%2F089" target="_blank" >FD-K3/089: Chemie obnovitelných zdrojů surovin - zpracování polysacharidů (zejména se zaměřením na deriváty celulózy).</a><br>

Návaznosti

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

Rok uplatnění

2004

Kód důvěrnosti údajů

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