Biodegradability of blends based on aliphatic polyester and thermoplastic starch

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F19%3A00503840" target="_blank" >RIV/61389013:_____/19:00503840 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007%2Fs11696-018-0663-8" target="_blank" >https://link.springer.com/article/10.1007%2Fs11696-018-0663-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11696-018-0663-8" target="_blank" >10.1007/s11696-018-0663-8</a>

Result language

angličtina

Original language name

Biodegradability of blends based on aliphatic polyester and thermoplastic starch

Original language description

In this work, biodegradable aliphatic polyester blends of polycaprolactone and polylactide were melted and blended with a natural and biodegradable thermoplastic starch (TPS). The TPS employed in this study was obtained by plasticization of isolated wheat starch using glycerol as plasticizer. Morphology as well as thermal properties of the blends was investigated, and water vapor permeability as a barrier property was also monitored. The biodegradability of the biodegradable blends was performed by a composting process on laboratory scale. The composting process was conducted in an adiabatic closed reactor for 21 days and during the composting process, the temperature, pH value, % moisture and volatile matter and evolved CO2 were monitored. Biodegradation of the blends was determined by weight loss, as well as monitoring of morphological surface change. The thermophilic phase prevailed in the composting process, indicating intensive biodegradation of substrate as well as biodegradation of investigated ternary blends. Since microorganisms use starch as a carbon source, addition of TPS causes considerable acceleration of biodegradation of ternary blends due to higher water vapor permeability as a result of the hydrophilic nature of starch. The thermoplastic starch was first degraded within the blend, which was facilitated access to the microorganisms of other ingredients in the blend, encouraging the biodegradation of other components.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10404 - Polymer science

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2019

Confidentiality

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

Name of the periodical

Chemical Papers

ISSN

2585-7290

e-ISSN

—

Volume of the periodical

73

Issue of the periodical within the volume

5

Country of publishing house

SK - SLOVAKIA

Number of pages

14

Pages from-to

1121-1134

UT code for WoS article

000463985400009

EID of the result in the Scopus database

2-s2.0-85064246086