Mechanical properties and biodegradability of PCL/starch blends

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F11%3A43891432" target="_blank" >RIV/60461373:22330/11:43891432 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Mechanical properties and biodegradability of PCL/starch blends

Popis výsledku v původním jazyce

Native or pre-gelatinized wheat starches (A and B types) or acetylated derivatives of native starch with degree of substitution DS of 1.5 - 2.3 (10, 20, and 40 % m/m) were blended with poly-(epsilon-caprolactone) (PCL). Structure of the prepared films was analysed by FT-IR spectroscopy in comparing with the initial polymers. The following mechanical characteristics of the prepared films were derived from the stress-strain curves: Young modulus, yield stress, tensile strength, and strain at break. Waterabsorption of PCL/starch (60/40) films was determined according to ISO 62. The films containing native and pre-gelatinized starch degraded in compost totally during the 1-2 months. Acetylation of starch molecules in the blends reduced the degradation rate. Chemical changes in the compost used for film exposition were measured.

Název v anglickém jazyce

Mechanical properties and biodegradability of PCL/starch blends

Popis výsledku anglicky

Native or pre-gelatinized wheat starches (A and B types) or acetylated derivatives of native starch with degree of substitution DS of 1.5 - 2.3 (10, 20, and 40 % m/m) were blended with poly-(epsilon-caprolactone) (PCL). Structure of the prepared films was analysed by FT-IR spectroscopy in comparing with the initial polymers. The following mechanical characteristics of the prepared films were derived from the stress-strain curves: Young modulus, yield stress, tensile strength, and strain at break. Waterabsorption of PCL/starch (60/40) films was determined according to ISO 62. The films containing native and pre-gelatinized starch degraded in compost totally during the 1-2 months. Acetylation of starch molecules in the blends reduced the degradation rate. Chemical changes in the compost used for film exposition were measured.

Druh

C - Kapitola v odborné knize

CEP obor

GM - Potravinářství

OECD FORD obor

—

Projekt

<a href="/cs/project/GA525%2F09%2F0607" target="_blank" >GA525/09/0607: Biodegradabilní kompozitní materiály na bázi B-škrobu s upotřebením v zemědělství</a><br>

Návaznosti

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

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Starch. Recent Advances in Biopolymer Science and Technology.

ISBN

978-83-932389-0-3

Počet stran výsledku

13

Strana od-do

131-143

Počet stran knihy

195

Název nakladatele

Polish Society of Food Technologists' Malopolska Branch

Místo vydání

Krakow, Polsko

Kód UT WoS kapitoly

—