Detail publikace

Biodegradation of polyether polyol based polyurethane elastomeric films influence of partial replacement of polyether polyol by biopolymers of renewable origin

OBRUČA, S. MÁROVÁ, I. VOJTOVÁ, L.

Originální název

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

In this work we investigated the degradation process of polyether polyol based polyurethane (PUR) elastomeric films in the presence of a mixed thermophilic culture as a model of a natural bacterial consortium. The presence of PUR material in cultivation medium resulted in delayed but intensive growth of the bacterial culture. The unusually long lag phase was caused by the release of unreacted polyether polyol and tin catalyst from the material. The lag phase was significantly shortened and the biodegradability of PUR materials was enhanced by partial replacement (10%) of polyether polyol with biopolymers (carboxymethyl cellulose, hydroxyethyl cellulose, acetyl cellulose and actylated starch). The process of material degradation consisted of two steps. First, the materials were mechanically disrupted and, second, the bacterial culture was able to utilize abiotic degradation products, which resulted in supported bacterial growth. Direct utilization of PUR by the bacterial culture was observed as well, but the bacterial culture contributed only slightly to the total mass losses. The only exception was PUR material modified by acetyl cellulose. In this case, direct biodegradation represented the major mechanism of material decomposition. Moreover, PUR material modified by acetyl cellulose did not tend to undergo abiotic degradation. In conclusion, the modification of PUR by proper biopolymers is a promising strategy for reducing potential negative effects of waste PUR materials on the environment and enhancing their biodegradability.

Klíčová slova

Biodegradation, polyurethanes, biopolymers

Autoři

OBRUČA, S.; MÁROVÁ, I.; VOJTOVÁ, L.

Rok RIV

2011

Vydáno

17. 7. 2011

Nakladatel

Taylor & Francis

Místo

Londýn

ISSN

0959-3330

Periodikum

ENVIRONMENTAL TECHNOLOGY

Ročník

Číslo

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1043

Strany do

1052

Strany počet

URL

https://iahr.tandfonline.com/doi/full/10.1080/09593330.2010.523903#.XsaNM2gzZaQ

BibTex

@article{BUT72576,
  author="Stanislav {Obruča} and Ivana {Márová} and Lucy {Vojtová}",
  title="Biodegradation of polyether polyol based polyurethane elastomeric films influence of partial replacement of polyether polyol by biopolymers of renewable origin",
  journal="ENVIRONMENTAL TECHNOLOGY",
  year="2011",
  volume="31",
  number="9",
  pages="1043--1052",
  doi="10.1080/09593330.2010.523903",
  issn="0959-3330",
  url="https://iahr.tandfonline.com/doi/full/10.1080/09593330.2010.523903#.XsaNM2gzZaQ"
}