Heat-treated biodegradable films and foils of collagen hydrolysate crosslinked with dialdehyde starch

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Heat-treated biodegradable films and foils of collagen hydrolysate crosslinked with dialdehyde starch

Popis výsledku v původním jazyce

Gels of collagen hydrolysate (H) cross-linked with dialdehyde starch (DAS) are marked by a strong tendency to aging, which means a certain problem during their processing into biodegradable packaging materials. Applying casting technology, and drying these materials by heating air-dry films and foils for a limited time (1-4 hours) at 105 oC, may eliminate the aging problem. Solubility of heat-treated films in an aqueous environment remains preserved, but depending on how long this temperature acts and on DAS content in the film; time of film disintegration prolongs from 1-1.5 hours to 1.300 hours (about 54 days). It is probably caused by the functional groups initially blocked by sorbed water, which get released to produce hydrogen inter-chain cross-links. The decrease in glass transition temperature of such films varies with content of water sorbed in films in an interval of 90.2-189 oC.

Název v anglickém jazyce

Heat-treated biodegradable films and foils of collagen hydrolysate crosslinked with dialdehyde starch

Popis výsledku anglicky

Gels of collagen hydrolysate (H) cross-linked with dialdehyde starch (DAS) are marked by a strong tendency to aging, which means a certain problem during their processing into biodegradable packaging materials. Applying casting technology, and drying these materials by heating air-dry films and foils for a limited time (1-4 hours) at 105 oC, may eliminate the aging problem. Solubility of heat-treated films in an aqueous environment remains preserved, but depending on how long this temperature acts and on DAS content in the film; time of film disintegration prolongs from 1-1.5 hours to 1.300 hours (about 54 days). It is probably caused by the functional groups initially blocked by sorbed water, which get released to produce hydrogen inter-chain cross-links. The decrease in glass transition temperature of such films varies with content of water sorbed in films in an interval of 90.2-189 oC.

Druh

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

CEP obor

DM - Tuhý odpad a jeho kontrola, recyklace

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Journal of Thermal Analysis and Calorimetry

ISSN

1388-6150

e-ISSN

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Svazek periodika

102

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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